OMRON G9SX-ADA222-T15-RT Flexible Safety Unit User Manual

Type G9SX-ADA222-T
Flexible Safety Unit

USER’S MANUAL

Thank you for purchasing G9SX Flexible Safety Unit. Please read and understand this manual before using the products. Keep this manual ready to use whenever needed. Only qualified persons trained in professional electrical techniques should handle G9SX. Please consult your OMRON representative if you have any questions or comments. Make sure that the information written in this document is delivered to the final user of the product.

**OMRON Corporation

**

© OMRON Corporation 2006-2020 All Rights Reserved.
0631702-7 F
EU Declaration of Conformity

OMRON declares that G9SX is in conformity with the requirements of the following
EU Directives:
EMC Directive 2014/30/EU
Machinery Directive 2006/42/EC
Standards
G9SX is designed and manufactured in accordance with the following standards:
EN ISO13849-1:2015 Category 4 PL e,
IEC/EN61508 SIL3,
IEC/EN61000-6-2, IEC/EN61000-6-4,
UL508, UL1998,
CAN/CSA C22.2 No.142

Safety Precautions

Meanings of Signal Words
The following signal words are used in this manual.

WARNING| Indicates a potentially hazardous situation which, if not avoided, will result in minor or moderate injury, or may result in serious injury or death. Additionally, there may be significant property damage.
---|---

Meaning of Alert Symbols
The following alert symbols are used in this manual.

| Indicates prohibited actions
---|---
| Indicates mandatory actions

WARNING

Serious injury may possibly occur due to the breakdown of safety outputs. Do not connect loads beyond the rated value to the safety outputs.

Serious injury may possibly occur due to the loss of required safety functions. Wire G9SX properly so that supply voltages or voltages for loads do NOT touch the safety inputs accidentally or unintentionally.
Serious injury may possibly occur due to damages of safety inputs. Apply protection circuitry against back electromotive force in case connecting inductive loads to safety outputs.
Serious injury may possibly occur due to loss of safety functions. Use appropriate devices referring to the information shown below.
Controlling Devices| Requirements
---|---
Emergency stop switch| Use approved devices with Direct Opening Mechanism complying with IEC/EN 60947-5-1
Door
interlocking switch
Limit switch| Use approved devices with Direct Opening
Mechanism complying with IEC/EN 60947-5-1 and capable of switching micro loads
of 24VDC, 5mA.
Safety Sensor| Use approved devices complying with the relevant product standards, regulations, and rules in the country where it is used.
Relay with
forcibly guided contacts| Use approved devices with forcibly guided|
contacts complying with IEC 61810-3 (EN 50205). For feedback, purposes use devices with contacts capable of switching micro loads of 24VDC, 5mA.
Contactor| Use approved devices complying with IEC/
EN 60947-4-1 auxiliary contact linked with power contact (mirror contact).|
For feedback, purposes use devices with contacts capable of switching micro loads of 24 VDC, 5 mA.
Other devices| Evaluate whether devices used are appropriate|
to satisfy the requirements of the safety category level.

Precautions for Safe Use

1. Use G9SX within an enclosure with IP54 protection or higher of IEC/EN60529

2. Incorrect wiring may lead to loss of safety function. Wire conductors correctly and verify the operation of G9SX before commissioning the system in which G9SX is incorporated.

3. Do not apply DC voltages exceeding the rated voltages, nor any AC voltages to G9SX. Do not connect to DC distribution network.

4. Use DC supply satisfying requirements below to prevent electric shock.
   – DC power supply with double or reinforced insulation, for example, according to IED/EN60950 or EN50178 or a transformer according to IEC/EN61558.
   – DC supply satisfies the requirement for class 2 circuits or limited voltage/current circuit stated in UL 508.

5. Apply properly specified voltages to G9SX inputs. Applying inappropriate voltages cause G9SX to fail to perform its specified
   function, which leads to the loss of safety functions or damages to G9SX

6. Auxiliary error outputs and auxiliary monitoring outputs are NOT safety outputs. Do not use auxiliary outputs as any safety output.
   Such incorrect use causes loss of safety function of G9SX and its relevant system. Also, Logical connection outputs can only be used for logical connections between G9SXs.

7. After the installation of G9SX, qualified personnel should confirm the installation and should conduct test operations and maintenance.
   The qualified personnel should be qualified and authorized to secure the safety on each phase of design, installation, running, maintenance, and disposal of the system.

8. A person in charge, who is familiar with the machine in which G9SX is to be installed, should conduct and verify the installation.

9. Turn OFF the signal to Safety input or Logical AND connection input every 24hours and make sure G9SX operates without faults by checking the state of the ERR indicator.

10. Do not dismantle, repair, or modify G9SX. It may lead to the loss of its safety functions.

11. Use only appropriate components or devices complying with relevant safety standards corresponding to the required level of safety categories. Conformity to requirements of the safety category is determined as an entire system. It is recommended to consult a certification body regarding the assessment of conformity to the required safety level.

12. OMRON shall not be responsible for conformity with any safety standards regarding the customer’s entire system.

13. Disconnect G9SX from the power supply when wiring. Devices connected to G9SX may operate unexpectedly.

14. Be cautious not to have your fingers caught when attaching terminal sockets to the plugs on G9SX.

Precautions for Correct Use

1. Handle with care
   Do not drop G9SX to the ground or expose it to excessive vibration or mechanical
   shocks. G9SX may be damaged and may not function properly.

2. Conditions of storage
   Do not store in such conditions stated below.

1. Indirect sunlight
2. At ambient temperatures out of the range of -10 to 55 ºC
3. At relative humidity out of the range of 25% to 85% or under
   such as temperature change that causes condensation.
4. In corrosive or combustible gases
5. With vibration or mechanical shocks out of the rated values.
6. Under splashing of water, oil, chemicals
7. In the atmosphere containing dust, saline, or metal powder.
   G9SX may be damaged and may not function properly.

3.  Mounting
   Mount G9SX to DIN rails with attachments (TYPE PFP-M, not incorporated into this product), not to drop out of rails by vibration
   etc. especially when the length of the DIN railing is short compared to the widths of G9SX.

4. Following spacing around G9SX should be available to apply rated current to outputs of G9SX and for enough ventilation and wiring:
   a) At least 25 mm beside side faces of G9SX.
   b) At least 50 mm above the top face of G9SX and below the bottom face of G9SX.
   

5. Wiring

1. For model G9SX-
   Use the following to wire to G9SX-.
   -Solid wire: 0.2 to 2.5mm 2 AWG24 to AWG12
   -Stranded wire (Flexible wire): 0.2 to 2.5mm AWG24 to AWG12
   Strip the cover of wire no longer than 7mm. 2
2. For model G9SX--RT (with screw terminals)
   Tighten each screw with a specified torque of 0.5 to 0.6N·m, or the
   G9SX- may malfunction or generate heat.
3. For Logical AND Connection
   Use VCTF cable or shielded cable for Logical AND connection between units.

6. When connecting Expansion Units (G9SX-EX-) to Advanced Unit:

1. Follow the procedure below:
   a) Remove the termination connector from the receptacle on Advanced Unit,
   b) Insert the head of the connecting cable of the Expansion Unit to the receptacle on the Advanced Unit
   c) Set the termination connector to the receptacle on the Expansion Unit at the end position. When Advanced Unit is used without expansion units, leave the termination connector set on the Advanced Unit.
2. Do not remove the termination connecter while the system is operating.
3. Before applying supply voltage, confirm that the connecting sockets and plugs are locked firmly.
4. All of the Expansion Units should be supplied with their specified voltages within 10s after the connected Advanced Unit is supplied with voltage. Otherwise, Advanced Unit detects the power-supply error for the Expansion Units.

7. Use cables with a length less than 100m to connect to Safety Inputs, Feed-back/Reset inputs, or between Logical AND connection inputs and Logical connection outputs, respectively.
8. Set the time duration of OFF-delay to an appropriate value that does not cause the loss of safety function of the system.
9. The logical connection between Units:

1. When using Logical AND connection inputs, set the Logical connection preset switch to ‘AND’ position for the units which
   the logical connection signal is input to.
2. Connect Logical connection outputs appropriately to Logical AND connection inputs of the relevant unit. Verify the operation of G9SX before commissioning the system.
3. When configuring the safety-related system, be sure to consider that the delay of response time caused by logical connections does not degrade the safety function of the system.

10. To determine safety distance to hazards, take into account the  delay of Safety outputs caused by the following time:

1. Response time of Safety inputs
2. Response time of Logical AND connection input (See also “Ratings and specifications, note5”)
3. Preset off-delay time
4. Accuracy of off-delay time

11. Sart the entire system after more than 5s has passed since applying supply voltage to all G9SXs in the system.
12. G9SX may malfunction due to electromagnetic disturbances. Be sure to connect terminal A2 to the ground. When using a DC power supply with light curtains, use a DC power supply that has no interruption by a power failure of 20ms.
13. Devices connected to G9SX may operate unexpectedly. When replacing G9SX, disconnect it from the power supply.
14. Adhesion of solvents such as alcohol, thinner, trichloroethane, or gasoline on the product should be avoided. Such solvents make the marking on G9SX illegible and cause deterioration of parts.
15. This is a class A product. In residential areas, it may cause radio interference, in which case the user may be required to take adequate measures to reduce interference.
16. Operate the reset input for more than 0.4 seconds immediately after the safety outputs are OFF. G9SX does not accept the reset input from when the outputs are turned ON and until 0.4 seconds pass after the outputs are turned OFF.

Appearance and Explanation of Each Part
Type G9SX-ADA222-T- (Advanced Unit)

LED Indicators

Marking

| Color| Name|

Function

---|---|---|---
PWR| Green| Power Supply Indicator| – Lights up while power is supplied.
ERR| Red| Error Indicator| – Lights up or blinks corresponding to the occurring error (1)
T1| Orange| Safety input #1
Indicator| – Lights up while the high signal is input to T12
– Blinks when errors relating to Safety input #1 occur. (1)
T2| Orange| Safety input #2
Indicator| – Lights up while the high signal is input to T22
– Blinks when error relating to Safety input #2 occurs. (1)
AND1| Orange| Logical AND
input1 Indicator| – Lights up while a high signal is an input to T41.
– Blinks when error relating to Logical AND connection Input occurs. (1)
AND2| Orange| Logical AND
input2 Indicator| – Lights up while the high signal is input to T51.
– Blinks when error relating to Logical AND connection Input occurs. (1)
FB| Orange| Feedback/Reset
input Indicator| – Lights up in the following cases:
— With the automatic reset, while the high signal is input to T33
— With the manual reset, while the high signal is input to T32.
– Blinks when an error relating to
Feedback/Reset input occurs. (1)
EI| Orange| Safety output
indicator| – Lights up while Safety solid-state outputs(S14, S24) are in ON- state.
– Blinks when an error relating to Safety solid-state output occurs. (1)
ED| Orange| Off-delayed
Safety output Indicator| – Lights up while Safety off-delayed solid-
state outputs (S44, S54) are in ON-state.
– Blinks when an error relating to Safety off- delayed solid-state output occurs.(1)

Preset Switches
Change the value of the preset switches only when G9SX is disconnected from the power supply.
The states of the preset switches come into effect when the power supply to G9SX turns on.

Name

| Function|

State/Value (position of the switch)

---|---|---
Logical AND1
Connection Preset Switch| Sets Logical AND1
Connection Inputs to valid or invalid. (2)| OFF (Invalid: default setting)/
AND1 (valid)
Logical AND2
Connection Preset Switch| Sets Logical AND2
Connection Inputs to valid or invalid. (2)| OFF (Invalid: default setting)/
AND2 (valid)
Off-delay Time
Preset Switch| Presets Off-delay time
(duplicate) (3), (4)| For Type G9SX-ADA222-T150-□
0 (default setting value)
/10/20/30/40/50/60/70/80/90/100/ 110/120/130/140/150 (s) (5)
For Type G9SX-ADA222-T15-□
0 (default setting value)
/0.2/0.3/0.4/0.5/0.6/0.7/1/1.5/2/ 3/4/5/7/10/15 (s) (5)

Note:

1.  See 7 Fault Detection for details.

2. When operating G9SX using the Logical AND Connection function, be sure to set the preset switch to AND (valid) position for the units to which the logical input signal is input. When the switch is set to an OFF (invalid) position, it is detected as a fault.

3. Set both of the two Off-delay Time Preset Switches, one each on the front and back, to the same value.

4. Off-delay time duration of Expansion Unit (OFF-delay model) synchronize with the OFF-delay time duration set by Off-delay Time
   Preset Switch of Advanced Unit.

5. See the following illustration for setting the position of the Off-delay Time Preset Switch. Make sure that the direction of the cutting edge of the preset switch is correctly pointed to the off-delay time value which must be set.

Internal Connection

1 Internal power supply circuit is not isolated.
2 Logical AND input1 and Logical AND input2 and the Internal circuits are isolated.
*3 The Safety solid-state outputs, S14 – S54, are internally redundant, respectively.
Ratings and Specifications Ratings

Power
input| Rated supply voltage| 24VDC
Operating voltage range| -15% to +10% of rated supply voltage
Rated power consumption| 4 W Max. (See Note1)
Outputs| Safety solid-state output (See Note3)
Off-delayed safety solid-state output (See Note3)| P channel MOS FET output
Load current:
Using 2 outputs or less: 1A DC Max. Using 3 outputs or more: 0.8A DC Max.
(See Note4)
Auxiliary output| PNP transistor output
Load current: 100mA Max.

Specifications and Performance

100ms Max. (Logical AND connection input) (See Note5,6)
Response time (ON to OFF state)| 15 ms Max. (See Note5)

Input

| Input current| 10 mA min.
ON voltage| 11 V min.
OFF voltage| 5 V min.
OFF current| 1 mA max.
Maximum wiring length| 100 m max.
(External connection impedance: 100ohm max. and 10 nF max.)
Reset input time| 100 ms min.
Output| ON-state residual voltage| 3.0 V max. (safety output, auxiliary output)
OFF-state leakage current| 0.1 mA max. (safety output, auxiliary output)
Maximum cable length for logical connection inputs and Safety inputs| 100m Max.
(Permissible impedance: 100ohm Max. and 10nF Max.)
A number of units connected per one Logical connection output.| 4 units Max. (See Note7)
Total number of units connected with Logical connection| 20 units Max. (See Note7,8)
Number of units connected in series with Logical connection| 5 units Max. (See Note7)
Accuracy of Off-delay time| Within plus or minus 5% of the set value
Reset input time| 100ms Min.
Vibration resistance| Frequency: 10 to 55 to 10Hz,
Amplitude: 0.375mm half amplitude (0.75mm double amplitude)
Mechanical shock resistance| 300 m/s2 (destruction), 100 m/s2 (malfunction)
Ambient temperature| -10 to +55     (No freezing or condensation)
Ambient humidity| 25 to 85 %RH
Terminal tightening torque| 0.5Nm (Applicable only to TYPE G9SX-□-RT: screw terminal model)
Weight| Approx. 200 g

Isolation specifications

Power supply input terminals and other input and output terminals are connected together.| 20Mohm Min.
(by 100VDC megger)
– Between Logical AND input2 terminals, and Power supply input terminals, and other input and output terminals connected together.| 20Mohm Min.
(by 100VDC megger)
– Between all terminals connected together and DIN rail.| 20Mohm Min.

(by 100VDC megger)

Dielectric strength

| – Between Logical AND connection1 terminals, and Power supply input terminals, and other input and output terminals connected together.|

500VAC for 1min

– Between Logical AND connection2 terminals, and Power supply input terminals, and other input and output terminals connected together.|

500VAC for 1min

– Between all terminals connected together and DIN rail.| 500VAC for 1min

Note:

1. Power consumption of loads not included.

2. Ensure that the current exceeds the minimum applicable load of the device connected.

3. While safety outputs are at its ON state, the signal sequence shown below is output continuously for diagnosis. When using the safety outputs as input signals to control devices (e.i. programmable controller), consider the off pulse below.

4. The following derating is required when Units are mounted side-by-side- 0.4 A max. load current

5. When multiple units are connected by logical connection, the total operating/response time is an accumulation of the operating/response time connected.

6. Required time for safety solid-state output to turn ON after necessary inputs turn ON.

7. For details of the system with logical connection refer to the illustration below.
   

8. The number of TYPE G9SX-EX401- (Expansion Unit) and TYPE G9SX-EX041-T- (Expansion Unit, Off-delayed model) is not included.

Settings indication (at power on)
Settings for G9SX can be checked by indicators for approx 3 seconds after power on.
During the settings indication term, ERR indicator will light up, however, the auxiliary error output will remain off.

Indicator

| Items| Setting position| indicator status| Setting mode|

Setting status

---|---|---|---|---|---
T1| Cross fault
detection mode| Y1 terminal| light up| detection mode| Y1 = open
not lit| non-detection mode| Y1 = 24VDC
FB| Reset mode| T32 or T33
terminal| light up| manual reset mode| T33 = 24VDC
not lit| auto reset mode| T32 = 24VDC

AND1

| Logical AND connection
input mode| Logical AND
connection preset switch1| light up| enable Logical AND input| ‘AND1’
not lit| disable Logically
AND input| ‘OFF’

AND2

| Logical AND
connection input
mode| Logical AND
connection preset
switch2| light up| enable Logical AND input| ‘AND2’
not lit| disable Logical AND input| ‘OFF’

Relation between each Logical AND connection preset switch and Safety output state
Relation between each logical AND connection switch setting and conditions for Safety output in the ON state is as follows.

Logical AND connection preset switch setting

|

Conditions for Safety output ON state

---|---
T41/T42| T51/T52| Safety Input| Logical Input1| Logical Input2
OFF| OFF| ON| OFF| OFF
AND1| OFF| ON| ON| OFF
OFF| AND2| ON| OFF| ON
AND1| AND2| ON| ON| ON

Dimensions

Type G9SX-ADA222-T(Advanced Unit)

Note1 Above outline drawing is for -RC terminal type.
Note2 For -RC terminal type only.

Suitability for Use

Omron Companies shall not be responsible for conformity with any standards, codes, or regulations which apply to the combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable third-party certification documents identifying ratings and limitations of use that apply to the Product. This information by itself is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use. Buyer shall be solely responsible for determining the appropriateness of the particular Product with respect to Buyer’s application, product, or system.
Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE  RISKS AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

OMRON Corporation (Manufacturer)
Shiokoji Horikawa, Shimogyo-ku, Kyoto, 600-8530 JAPAN
Contact: www.ia.omron.com
Regional Headquarters
OMRON EUROPE B.V. (Importer in EU)
Wegalaan 67-69, 2132 JD Hoofddorp
The Netherlands
Tel: (31)2356-81-300/Fax: (31)2356-81-388
OMRON ELECTRONICS LLC
2895 Greenspoint Parkway, Suite 200
Hoffman Estates, IL 60169 U.S.A.
Tel: (1) 847-843-7900/Fax: (1) 847-843-7787
OMRON ASIA PACIFIC PTE. LTD.
No. 438A Alexandra Road # 05-05/08 (Lobby 2),
Alexandra Technopark,
Singapore 119967
Tel: (65) 6835-3011/Fax: (65) 6835-2711
OMRON (CHINA) CO., LTD.
Room 2211, Bank of China Tower,
200 Yin Cheng Zhong Road,
Pudong New Area, Shanghai, 200120, China
Tel: (86) 21-5037-2222/Fax: (86) 21-5037-2200

Examples of application

Application and timing chart
Wiring of inputs and outputs

Signal Name

| Terminal Name| Description of operation|

Wiring

---|---|---|---
Power supply|
input| A1,
A2| The input terminals for power supply.
Connect the power source to the A1 and A2 terminals.| Connect the power supply plus to the A1 terminal.
Connect the power supply minus to the A2 terminal.+24V
Safety input 1| T11,
T12| To set Safety solid-state outputs in ON state,
HIGH state signals must be input to both of
Safety input 1 and Safety input 2
Otherwise, Safety solid-state outputs cannot
be in ON state.| Using 1 safety input channel|
Using 2 safety input channels
(cross fault detection OFF)|
Using 2 safety input channels
(cross fault detection ON)|
Feedback/
Reset input| T31,
T32,
T33| To set Safety solid-state outputs in ON state,
ON state signal must be input to T33.
Otherwise, Safety solid-state outputs cannot be in an ON state.| Auto-reset|
To set Safety solid-state outputs in ON state,
the signal input to T32 must change from
OFF state to ON state, and then to OFF state. Otherwise, Safety solid-state outputs cannot be in an ON state.| Manual reset|
Logical AND
connection input1| T41,
T42| Logical AND connection means that the lower unit (Unit C) calculates the logical multiplication (AND) of the safety output information from the upper unit (Unit A, Unit B) and safety input signal “c”, which
is input to the lower unit. In the example in the right, the safety output of Unit C is “a” AND “b” AND “c”. Connect L1 or L2 of upper unit to T41 or T51 of the lower unit, and connect GND of upper unit to T42 or T52 of the lower unit. See Relation between each Logical AND connection preset switch and Safety output state for conditions for safety output to be in the ON state.|
Cross fault detection input| Y1| Selects a mode of failure detecting (Cross fault detecting) function for safety inputs of G9SX corresponding to the connection of Cross fault detection input.| Keep Y1 open when using T11, T21. (Wiring corresponding to category 4)
Connect Y1 to 24VDC when NOT using T11, T21. (Wiring corresponding category 2 or 3, or when connecting safety sensors and  corresponding up to category 4.)
Safety solid-state
output| S14,
S24| Turns ON/OFF according to the state of safety inputs, Feedback/Reset inputs, and Logical AND connection inputs. During an off-delay state, safety solid-state outputs are not able to turn ON.| Keep these outputs Open when NOT used.
Off-delayed
Safety solid-state
output| S44,
S54| Off-delayed safety solid-state outputs.
Off-delay time is set by the off-delay preset switch.
When the delay time is set to zero, these
outputs can be used as non-delay outputs.| Keep these outputs Open when NOT used.
Logical connection
output| L1,
L2| Outputs a signal of the same logic as Safety
solid-state outputs.| Keep these outputs Open when NOT used.
Auxiliary Monitor
output| X1| Outputs a signal of the same logic as Safety
solid-state outputs| Keep these outputs Open when NOT used.
Auxiliary Error output| X2| Outputs during error indicators are lighting up or blinking.| Keep these outputs Open when NOT used.

Connecting Safety Sensors and G9SX

1. When connecting Safety sensors with G9SX, the Y1 terminal must be connected to 24VDC. G9SX will detect the connection error if the Y1 terminal is open.
2. In any case, Safety Sensor outputs include the off-shot pulse for its self- test. The following condition of test pulse is applicable as safety inputs for G9SX.
   – Off-shot pulse width of the sensor, during the ON-state: 500µs Max.
   Terminal arrangement and LED indicators
   TYPE G9SX-ADA222-T - (Advanced Unit)

Performance Level and Safety category of EN ISO 13849-1

The G9SX can be used up to PL =e and Category 4 required by EN ISO 13849-1 European standard. Refer to the following link for the
Safety-relay characteristic data:
http://www.fa.omron.co.jp/safety_6en/
This does NOT mean that G9SX can always be used for the required category under all similar conditions and situations.
Conformity to the categories must be assessed as a whole system. When using G9SX for safety categories, make sure the conformity of the whole system.

1. Input the signals to both of the Safety inputs (T11-T12 and T21-T22)
2. Input a signal to the Safety inputs (T11-T12 and T21-T22) through switches with the Direct Opening Mechanism. When using limit switches, at least one of them must have a Direct Opening Mechanism.
3. When connecting the Safety sensor with G9SX, use the TYPE 4 safety sensor.
4. Input the signal through an NC contact of the contactor to Feedback/Reset input (T31-T32 for manual reset or T31-T33 for auto-reset). (Refer to ‘5. Examples of Application’)
5. Keep Cross fault detection mode input (Y1) open. However, when connecting devices with self-diagnosis functions, such as safety sensors, apply 24VDC to Y1.
6. Be sure to Connect A2 to the ground.

Fault Detection

When G9SX detects a fault, ERR indicator and/or other indicators light up or blink to show the information of the fault. Check and take needed measures referring to the following table. and then apply supply voltage to G9SX.

ERR
indicator

| Ober
indicators| Fauns| Expected causes of tie fauns|

Checking points and
measures to take

---|---|---|---|---
| _| Faults by electro-magnetic disturbance or of internal circuits.| 1) ay accestve stecro-maretc oduroarce

2. Failures of me pans of internal circuits

| 1) By excessive electromagnetic disturbance
2) Failures of the parts of internal circuits
| | Faults involved with Safety input 1| 1) Failures involving the wiring of Safety input 1
2) Incorrect setting of Cross fault detection mode.
3) Failures of the parts of the circuits of Safety input 1.| 1) Check the wiring to T11 and T12.
2) Check the wiring to Y1.
3) Replace with a new product.
| Faults “yoked Will Safety about 2| 1) Failures involving the wiring of Safety input 2
2) Incorrect setting of Cross fault detection mode.
3) Failures of the parts of the circuits of Safety input 2.| 1) Check the wiring to T21 and T22.
2) Check the wiring to Y1.
3) Replace with a new product.
| Faults involved with
Feedback/Reset input| 1) Failures involving the wiring of Feedback/Reset input.
2) Failures of the parts of the circuits of Feedback/Reset input| 1) Check the wiring to T31, T32, and T33
2) Replace with a new product.
Faults of Expansion
units| 1) Improper feedback signals from Expansion units
2) Abnormal supply voltage to Expansion units
3) Failures of the parts of the circuits of the Safety relay
contact outputs| 1) Check the connecting cable of Expansion units
and the connection of the termination socket.
2) Check the supply voltage to Expansion units.

• Make sure that all Expansion units’ PWR
  indicators are lighting.

3. Replace the Expansion unit with a new one.
   | Faults involved with
   Safety solid-state outputs or Logical connection outputs| 1) Failures involving the wiring of Safety solid-state outputs
4. Failures of the parts of the circuits of Safety solid-state outputs
5. Failures involving the wiring of Logical connection output
6. Failures of the parts of the circuits of Logical connection output
7. Impermissible high ambient temperature| 1) Check the wiring to S14, S24, and S34
8. Replace with a new product.
9. Check the wiring to L1 and L2
10. Replace with a new product.
11. Check the ambient temperature and
    spacing around G9SX.
    | Faults involved with
    Off-delayed Safety
    solid-state outputs| 1) Failures involving the wiring of Off-delayed
    Safety relay contact outputs
12. Incorrect set values of Off-delay time
13. Failures of the parts of the circuits of Off-delayed
    Safety relay contact outputs
14. Impermissible high ambient temperature| 1) Check the wiring to S44 and S54
15. Confirm the set values of the two of
    Off-delay time preset switches.
16. Replace with a new product.
17. Check the ambient temperature and
    spacing around G9SX.
    | | Faults involved with
    Logic AND connection
    input1 or Logic AND
    connection input2| 1) Failures involving the wiring of Logic AND
    connection input1 or 2
18. Incorrect setting for Logic AND connection input1 or 2
19. Failures of the parts of the circuits of Logical
    AND connection input1 or 2| 1) Check the wiring to T41 and T42 (T51 and T52)

• Make sure that the wiring length for T41, T42,
  T51, T52 terminals is less than 100 meters,
  respectively
• Make sure that the Logical AND connection
  a signal is branched for less than 4 units.

2. Confirm the set value of the Logical
   AND connection preset switch.
3. Replace with a new product.
   | | Supply voltage outside
   the rated value| 1) Supply voltage outside the rated value| 1) Check the supply voltage to Expansion
   units.

When indicators other than ERR indicator while ERR indicator keeps lit off, check and take needed actions referring to the following table.

ERR
indicator| The other
indicators| Cond.-lions| Expected causes of the faults| Expected causes of the faults
---|---|---|---|---
Light off| | A mismatch between input 1 and input 2.| 1) Input status between input 1 and input 2
is different, cause of contact failure or
short circuit of safety input device(s) or
No wiring fault.| 1) Check the wiring from safety input devices to G9SX.
Or check the inputs sequence of safety input devices.
After removing the fault, turn both safety inputs to
OFF state.

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