SIEMENS A-Series Industrial Electric Actuator Instructions
- October 30, 2023
- SIEMENS
Table of Contents
SIEMENS A-Series Industrial Electric Actuator
Technical Instructions
Document No. A6V11937852 August 23, 2022
Description| The A-Series quarter-turn industrial electric actuator
features a compact, reliable design that mounts directly to Siemens resilient
seat butterfly valves without the need for brackets and linkages. Available in
torque outputs from 600 to 18,000 lb-in (68 to 2,033 Nm), 24V and 120 Vac,
Two-position (On/Off) and Modulating units all in NEMA 4x and IP65-rated
housings.
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Features| · Compact, lightweight design and direct mounting
· High visibility Beacon position indicator
· Manual, declutchable override handwheel
· Terminal strip for cable terminations
· Servo NXT option for modulating control
· Travel limit cams adjustable by hand or screwdriver
· UL-approved (120 Vac only)
· On/off or modulating control
· Available in 120, 24 Vac 50/60 Hz, single-phase, 24 Vdc voltages
· Output torque 600 lb-in (68 Nm) to 18,000 lb-in (2,033 Nm)
· ISO 5211 for direct mounting
· All actuators include a heater to prevent condensation build-up
· All modulating units include a feedback potentiometer
Servo NXT Features (for Modulating Actuators)| · Provides precise modulating control of valve position
· Single Finger Technology (SFT) menu-driven, pushbutton, programming with LED confirmation of all settings:
o Input Control – 4 to 20 mA, 0 to 10 Vdc, 0 to 5 Vdc or 2 to 10 Vdc
o Position Feedback – 4 to 20 mA, 0 to 10 Vdc, or 0 to 5 Vdc
o Auto Calibrating
o Fail Position
§ Loss of supply power – fail-in-place
§ Loss of control signal – selectable
o Adjustable speed control
· Including:
o Manual mode
o Onboard signal generator to simplify field set-up
o Fault display – Simplifies troubleshooting
o Stall detection – Eliminates mechanical damage in case of obstruction or bad switch settings
· Optical isolation of all inputs/outputs
o Provides interoperability with all controllers
o Earth ground tolerant
o Allows for parallel operation
Ordering| Actuators can be ordered separately or together with a valve as an assembly.
Product Numbers
Table 1. A-Series Industrial Electric Actuators, 24V.
Product Number| Operating Mode| Voltage 50/60 Hz|
Torque| **90° Stroke Time*| Current Draw (Amps)
---|---|---|---|---|---
(lb-in)| (Nm)| Full Load| Locked**
Rotor
A126.600| ****
On/Off
| ****
24 Vac/dc
| 600| 68| 60 sec. AC
40 sec. DC
| 1.80| —
A126.2K| 2,000| 226| 60 sec.| 2.00| —
A126.5K| 24 Vac| 5,000| 565| 60 sec.| 4.00| —
A166.600| Modulating| 24 Vac| 600| 68| 60 sec.| 1.80| —
A166.2K| 2,000| 226| 60 sec.| 2.00| —
A166.5K| 5,000| 565| 60 sec.| 4.00| —
- Operating times shown are with 60 Hz power supply. Actuators with 50 Hz power supply will be 20% slower.
Table 2. A-Series Industrial Electric Actuators, 120V.
Product Number| Operating Mode| Voltage 50/60 Hz|
Torque| **90° Stroke Time*| Current Draw (Amps)
---|---|---|---|---|---
(lb-in)| (Nm)| Full Load| Locked**
Rotor
A226.600| ****
On/Off
| ****
120 Vac
| 600| 68| 30 sec.| 0.80| 1.00
A226.1K| 1,200| 135| 30 sec.| 0.78| 2.10
A226.2K| 2,000| 226| 30 sec.| 1.00| 2.10
A226.3K| 3,000| 339| 30 sec.| 1.20| 3.00
A226.5K| 5,000| 565| 30 sec.| 1.60| 3.00
A226.6K| 6,500| 734| 30 sec.| 2.30| 3.10
A226.13K| 13,000| 1,470| 110 sec.| 2.30| 3.10
A226.18K| 18,000| 2,034| 110 sec.| 2.50| 3.10
A266.600| ****
Modulating
| ****
120 Vac
| 600| 68| 30 sec.| 0.80| 1.00
A266.1K| 1,200| 135| 30 sec.| 0.78| 2.10
A266.2K| 2,000| 226| 30 sec.| 1.00| 2.10
A266.3K| 3,000| 339| 30 sec.| 1.20| 3.00
A266.5K| 5,000| 565| 30 sec.| 1.60| 3.00
A266.6K| 6,500| 734| 30 sec.| 2.30| 3.10
A266.13K| 13,000| 1,470| 110 sec.| 2.30| 3.10
A266.18K| 18,000| 2,034| 110 sec.| 2.50| 3.10
- Operating times shown are with 60 Hz power supply. Actuators with 50 Hz power supply will be 20% slower.
NOTE: 13K and18K torque models are available starting July 2020.
Warning/Caution Notations
WARNING:| | Personal injury or loss of life may occur if you do not
perform a procedure as specified.
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CAUTION:| | Equipment damage may occur if you do not perform a
procedure as specified.
CAUTION:
Do not install or use the A-Series Industrial Electric Actuator in or near
environments where corrosive substances or vapors could be present. Exposure
of the electric actuator to corrosive environments may damage the internal
components of the device and will void the warranty.
Application
These actuators are ideal for use on valves for chillers, cooling towers,
boilers, heat exchangers and other indoor or outdoor applications. The
actuators’ advanced electronics assure reliable compatibility with virtually
any analog control signal used in today’s building automation and temperature
control systems. All Siemens A-Series Industrial actuators are NEMA 4X rated
for protection against the elements and are suitable for outdoor applications.
The NEMA 4x rated housing prevents any water ingress in outdoor applications.
The heater prevents any condensation build-up inside the housing.
Warning/Caution Notations| WARNING:| | Personal injury or loss of
life may occur if you do not perform a procedure as specified.|
---|---|---|---|---
| CAUTION:| | Equipment damage may occur if you do not perform a
procedure as specified.|
|
CAUTION:
Do not install or use the A-Series Industrial Electric Actuator in or near environments where corrosive substances or vapors could be present. Exposure of the electric actuator to corrosive environments may damage the internal components of the device and will void the warranty.
|
A-Series Industrial Electric Actuator|
Specifications
Operating Conditions
| Ambient Temperature -20 to 150°F (-29° to 65°C)
Fail Position Loss of supply power – fail-in- place Motor Insulation
120 Vac Class F, 311°F (155°C) thermal trip at
275°F (135°C)
24 Vac/dc Class B, Slow Blow Fuse 5A @ 250 Vac
|
Physical Description| Housing ASTM B85
Pressure Die Cast Aluminum, Polyester Powder Coated
Motor
120 Vac Single-Phase, Reversible, Permanent Split Capacitor Induction Motor
24 Vac/Vdc Single-Phase, Permanent Magnet-Brush D.C. Motor
Auxiliary/Limit Switches SPDT
120 Vac 10A- 1/3 HP
12 Vdc 2A
Terminal Strip
Switch Plate 12 to 22 AWG (2.0 to 0.65 mm)
Servo 14 to 24 AWG (1.63 to 0.51 mm) Heater 5-Watt, PTC style
Dimensions and weight See Dimensions.
Enclosure Designed to meet NEMA Type 4, 4x and IP65 specifications
Travel stops Externally adjustable at both 0 and 90 degrees. Conduit entries
600 lb-in Two 1/2” NPT (BSP)
1200 lb-in and higher Two 3/4” NPT
Manual operation Pull to engage, push to disengage –
__30:1 drive ratio, 12 and18K lb.-in. models are 90:1
|
Certifications| | | UL508 certified (120 Vac only)|
Servo Specifications (for Use with Modulating Actuators)
Power Requirements| 120 Vac 50/60 Hz +/- 10%
24 Vac 50/60 Hz +/- 10%
24 Vdc -10%, +30%
5 VA average (no load)
Fuse: 5A Slow Blow 5 mm × 20 mm
---|---
Input Signal| Control Signal 4 to 20 mA, 0 to 10
Vdc, 0 to 5 Vdc, 2 to
10 Vdc
Input Impedance >100 Meg Ohms (0 to 10V, 2 to 10V, 0 to 5V)
Output Signal| Operating Modes 4 to 20 mA, 0 to 10 Vdc, 0 to 5 Vdc
Output Impedance <10 Ohms (0 to 5 Vdc, output, 0 to 10V output)
200 Ohms (4 to 20 mA output mode)
Loop Voltage 12 Vdc (4 to 20 mA output mode)
Resolution| Absolute Position Accuracy <1%
Dead Band Adjustment 1% (+/- 0.5%) to 6% (+/-3%) (3%
default)
1% minimum increment
Potentiometer Feedback Signal| Supply Voltage 3.3 Vdc
External Feedback Potentiometer 1K to 10K Ohms
Speed Control| Open/Close Speed 0% to 100% (default). Step size: 20%.
Actuator open/close speed as a percentage of full speed.(See motor speed specification for maximum 90° run times.)
Operating Mode| Normal Mode Modulating – follow setpoint
Loss of Control Signal Selectable to Open, Close, or Last Loss of Supply Power Fail-in-place
Reverse Acting Mode Configurable for inverted input signal Autocalibration Automatic endpoint detection
Manual Operation Keypad electrical manual operation of actuator (Open, Stop, Close)
Torque Protection| Stall Detection Motor detected stationary >2 seconds (600 to 6500 lb-in units only)
Torque Limit ( Optional ) externally connected
Open/Close torque limit switch
Electronic Torque Limit ( Optional ) factory-programmable current/torque limit switch
Environmental| Ambient Temperature -20°F (-29°C) to 150°F (65°C)
Compliance 120V units comply with UL, cUL, and CSA. All models are CE certified.
Table 3. Product Numbers.
Use the product numbers in the following table to order a valve or a valve and
actuator assembly. The valve product number consists of the type, action,
valve size, disc type, and valve configuration. To order an assembly, add a
(-) after the valve product number and then choose the application, actuator,
voltage, control signal, end switches followed by a separator (.) and the
actuator torque.
Sample:| B| 2| 02| F| C| –| S| A|
1| 2| 6| .| 600
---|---|---|---|---|---|---|---|---|---|---|---|---|---
Valve Type: Butterfly| | | | | | | | | | | |
Action:
2 = 2-Way
3 = 3-Way
Valve Size:
02=2″, 25=2.5″, 03=3″, 04=4″,
05=5″, 06=6″, 08=8″ 10=10″,
12=12″, 14=14″, 16=16″,
18=18″, 20=20″, 24=24″
Disc Type:
F = Full Cut
U = Under Cut
Valve Configuration:
3-Way – A, B, C, D
2-Way
O = Normally Open C = Normally Closed
M = Valve assembly with manual operator
Denotes Assembly
Application:
S = Standard Temp – Intermittent 250°F Operation
H = High Temperature – Continuous 250°F Operation Blank = Siemens Commercial Actuator
Actuator:
A = Industrial Actuator
GCA = Siemens SR Commercial Actuator GIB = Siemens NSR Commercial Actuator
Voltage: 1 = 24V
2 = 120V
Control Signal:
2 = 2-Position
3 = Floating (Commercial Actuators only) 6 = Modulating (0-10V)
End Switches:
1 = No switches 6 = Switches
Separator
Actuator Torque (lb-in):
600=600, 1K=1200, 2K=2000, 3K=3000, 5K=5000, 6K=6500,
13K=13000, 18K=18000, 21K=21300, 41K=40680, 3U = Shaft adapter with 3-foot cable (Commercial Actuators only)
NOTE: 13K and 18K torque models are available starting July 2020.
Accessories/Kits| 599-10097LT 120V Servo NXT Kit A-Series 600 to 6.5K lb-in actuators
599-10097HT 120V Servo NXT Kit for A-Series 13K & 18K lb-in actuators 599-10098 24V Servo NXT Kit A-Series 600 to 5K lb-in actuators
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Mounting and Installation| All A-Series industrial electric actuators
are suitable for direct mounting on Siemens resilient seat butterfly valves.
NOTE:
The standard mounting position for the actuator is to orient the base of the actuator parallel to the pipeline.
To mount an actuator on a vertical pipe, position the unit with the conduit entries on the bottom to prevent condensation from entering the actuator through its conduits.
Service| The resilient seat butterfly valve and actuator are
maintenance-free.
Wiring| | CAUTION:
· When wiring an A-Series Industrial Electric Actuator for two- position (on/off) control and the power to the actuator is commanded to be off, you must ensure that there is no extraneous or leakage voltage between hot and common. Leakage voltage greater than 3 Vac can cause actuator failure.
· When wiring an A-Series Industrial Electric Actuator for two- position control, the controller should use at minimum a one-second time delay for command signal reversal. Instantaneous command reversals may cause actuator failure.
Figure 1. 24 Vac/dc On/Off Wiring 600 and 2000 lb-in Models.
NOTE:
Use this A-Series Industrial Electric Actuator only to control equipment under normal operating conditions. Where failure or malfunction of the electric actuator could lead to personal injury or property damage to the controlled equipment or other property, additional precautions must be designed into the control system. Incorporate and maintain other devices such as supervisory or alarm systems or safety or limit controls intended to warn of, or protect against, failure or malfunction of the electric actuator.
Wiring, Continued
NOTES:
- Command signal and feedback wires MUST be shielded and grounded for proper servo operation.
- The command signal input (-) terminal is internally connected to the Servo neutral terminal. DO NOT connect the live to the neutral terminal on the Servo.
- Command signal and feedback signal must be isolated from each other and any other circuits. When using 0 to 10 Vdc, 0 to 5 Vdc and 2 to 10 Vdc the common of the command signal should NOT be ground/earth referenced.
- The feedback loop is powered by the Servo, do not supply external power.
- Command signal and feedback signal wires should be properly shielded and grounded, on one end only, preferably the controller end.
- The 24V Servo Pros can be wired with 3- or 4-wire configuration.
Dimensions
Actuator Model Number| A| B| C| D| E| F|
G| H| J| K| L| M| N| P| Q| R|
S| Wt lbs (kgs)
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---
Axx6.600| 7.5| 5.8| 5.6| 1| 1.94| .19| 1/2| 2.2| 5/16-18| | L75| .51| 1.75|
3.5| | | | 13
| (191)| (147)| (141)| (48)| (49.2)| (4.7)| | (55)| ×Ø 2.76| | (19)| (31)|
(44.5)| (89)| | | | (6)
Axx6.1K| 10.1| 7.8| 6.6| 2.4| 2.69| .56| 3/4| 2.6| (F07)| 1/2-13| 1.18| .87|
2.22| 8.0| 8.0| 8.0| 8.0| 28
Axx6.2K| (256)| (198)| (168)| (62)| (68.3)| (14.3)| | (66)| | x ø4.92 (F12)|
(30)| (22)| (56.3)| (203)| | | | (13)
Axx6.3K| 12.1| 9.5| 7.2| 2.9| 3.19| .56| 3/4| 3.1| 1/2-13| 3/4-10| See Detail
A1| 12| | | _| 48
Axx6.5K| (308)| (242)| (183)| (73)| (80.9)| (14.3)| | (78)| x ø4.92| x ø
6.50| | (304.8)| | | | (22)
Axx6.6K| | | | | | | | | (F12)| (F16)| | | | | |
Axx6.13K| 12.1| 9.5| 12.5| 8.1| 9.2| .56| 3/4| 8.3| | | See Detail A1| 12|
6.1| 12.7| 8| 118
Axx6.18K| (308)| (242)| (317)| (206)| (234)| (14.2)| | (211)| | | | (305)|
(155)| (323)| (203)| (54)
Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. Products or company names mentioned herein may be the trademarks of their respective owners. © 2020 2022 Siemens Industry, Inc.
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Document No. A6V11937852 Printed in the USA