HONEYWELL UDC120T Three Position Step Control User Guide

HONEYWELL UDC120T Three Position Step Control

Product Information

Specifications:

• Model Numbers: UDC120T, UDC170T
• Product Manual: 51-52-25-145-EN
• Installation: To be performed by technically competent personnel

Product Usage Instructions

Installation
Models UDC120T and UDC170T have different case sizes. Follow the installation differences shown below:

• UDC120T Installation:

1. Detach the PSU and CPU boards from the front by lifting the upper and lower mounting struts.
2. Plug the required option modules into the correct connectors.
3. Locate the module tongues in the corresponding slot on the opposite board.
4. Hold the main boards together while relocating back on the mounting struts.
5. Replace the instrument by aligning the CPU and PSU boards with their guides in the housing, then push the instrument back into  

position.

• UDC170T Installation:

1. Detach the PSU and CPU boards from the front by lifting the upper and lower mounting struts.
2. Plug the required option modules into the correct connectors.
3. Locate the module tongues in the corresponding slot on the opposite board.
4. Hold the main boards together while relocating back on the mounting struts.
5. Replace the instrument by aligning the CPU and PSU boards with their guides in the housing, then push the instrument back into position.

Panel-Mounting
The mounting panel must be rigid, and may be up to 6.0mm (0.25inch) thick. Cut-out sizes are:

• UDC120T: Dim A = 45mm, Dim B = 45mm
• UDC170T: Dim A = 45mm, Dim B = 92mm

For multiple instruments mounted side-by-side, cut-out dimension A is 48n-4mm.
Mount the instrument by sliding the mounting clamp over the instrument housing towards the rear face of the mounting panel until the tongues engage in the ratchets, and the instrument is clamped in position. Hold the instrument firmly in position, applying pressure to the bezel only.

CAUTION : Do not remove the panel gasket as it is a seal against dust and moisture.

Rear Terminal Wiring
Use copper conductors (except for T/C input) with a maximum single strand wire gauge of 1.2mm (18SWG).

Wiring Diagrams
Refer to the wiring diagrams below for the exact connections required depending on the model and options fitted:

• UDC120T Wiring Diagram
• UDC170T Wiring Diagram

Select Mode
Select mode is used to access the configuration and operation menu functions:

1. Hold down [SELECT] and press [ENTER] to enter select mode.
2. Press [UP] or [DOWN] to choose the required mode.
3. Press [ENTER] to confirm the selection.
4. An unlock code is required to prevent unauthorized entry to Configuration and Setup modes. Enter the unlock code using the [UP] or [DOWN] buttons, then press [ENTER] to proceed.

FAQ (Frequently Asked Questions)

1. Q: Who should perform the installation?
   A: The installation should be performed by technically competent personnel.

2. Q: What are the differences between UDC120T and UDC170T in terms of installation?
   A: The case sizes are different, and the installation steps for each model are clearly shown in the manual.

3. Q: What is the maximum thickness of the mounting panel?
   A: The mounting panel can be up to 6.0mm (0.25inch) thick.

4. Q: Can I remove the panel gasket?
   A: No, the panel gasket should not be removed as it serves as a seal against dust and moisture.

5. Q: What type of wire should be used for rear terminal wiring?
   A: Copper conductors (except for T/C input) with a maximum single strand wire gauge of 1.2mm (18SWG) should be used.

6. Q: How can I enter select mode?
   A: Press and hold [SELECT], then press [ENTER] to enter select mode.

HONEYWELL UDC120T & UDC170T 

Three Position Step Control Product Manual (51-52-25-145-EN)

CAUTION: Installation should be only performed by technically competent personnel. Local Regulations regarding electrical installation & safety must be observed.

 INSTALLATION

Models UDC120T and UDC170T have different case sizes (refer to section 10). Installation differences between the two models have been clearly shown.
Note: The functions described in sections 2 thru 9 are common to all models.

Installing Option Modules

To access modules 1, A or B, first detach the PSU and CPU boards from the front by lifting first the upper, and then lower mounting struts. Gently separate the boards.

• Plug the required option modules into the correct connectors, as shown below.
• Locate the module tongues in the corresponding slot on the opposite board.
• Hold the main boards together while relocating back on the mounting struts.
• Replace the instrument by aligning the CPU and PSU boards with their guides  in the housing, then slowly push the instrument back into position.
  Note: Option modules are automatically detected at power up.

Option Module Connectors

Panel-Mounting

The mounting panel must be rigid, and may be up to 6.0mm (0.25inch) thick. Cut-out sizes are:

• UDC120T
  • Dim A = 45mm
  • Dim B = 45mm
• UDC170T
  • Dim A = 45mm
  • Dim B = 92mm

Tolerance +0.5, -0.0mm

For n multiple instruments mounted side-by-side, cut-out dimension A is 48n- 4mm

CAUTION: Do not remove the panel gasket; it is a seal against dust and moisture.

Rear Terminal Wiring
USE COPPER CONDUCTORS (EXCEPT FOR T/C INPUT) Single Strand wire gauge: Max 1.2mm (18SWG)
UDC120T Wiring Diagram

UDC170T Wiring Diagram

• These diagrams show all possible option combinations. The actual connections required depends on the exact model and options fitted.
• Note: This controller uses Three-Point Stepping Control. This requires two identical outputs (2 Relays, 2 Triacs, 2 SSR Drivers or 1 Dual Relay) for the valve Open & Close functions. See Output Usage 1-5 in Configuration Mode.
• CAUTION: Check information label on housing for correct operating voltage before connecting supply to Power Input
• Fuse:
  • 100 – 240V ac – 1amp anti-surge
  • 24/48V ac/dc – 315mA anti-surge

Note: At first power-up the message is displayed, as described in section 7 of this manual. Access to other menus is denied until configuration mode is completed

SELECT MODE

• Select mode is used to access the configuration and operation menu functions. It can be accessed at any time by holding   down and pressing
• In select mode, press  or  to choose the required mode, press  to enter.
• An unlock code is required to prevent unauthorised entry to Configuration, & Setup modes. Press  or  to enter the unlock code, then press  to proceed.

Note: The instrument will always return automatically to Operator mode if there is no key activity for 2 minutes.

CONFIGURATION MODE

• First select Configuration mode from Select mode (refer to section 2).
• Press  to scroll through the parameters, then press  or  to set the required value. Press  to accept the change, otherwise parameter will revert to previous value. To exit from Configuration mode, hold down  and press  , to return to Select mode.
• Note: Parameters displayed depends on how instrument has been configured.
• Refer to user guide (available from your supplier) for further details.
• Parameters marked ** are repeated in Setup Mode.

 SETUP MODE

• Note: Configuration must be completed before adjusting Setup parameters.
• First select Setup mode from Select mode (refer to section 2). The MAN LED will light while in Setup mode. Press to scroll through the parameters, then press    or  to set the required value.
• To exit from Setup mode, hold down    and press to return to Select mode.
• Note: Parameters displayed depends on how instrument has been configured

Setting the Valve Opened & Valve Closed Positions

• With   in the lower display press The top display shows
• Press  to drive open the valve until it reaches the “fully open” end stop.
• Press  The top display will go Blank and the Auxiliary Input value will be measured and stored as the value equal to the fully open valve position.
• Press The lower display shows Press  The top display shows
• Press  to drive closed the valve until it reaches the “fully closed” end stop.
• Press  The top display will go Blank and the Auxiliary Input value will be measured and stored as the value equal to the fully closed valve position.

AUTOMATIC TUNING MODE

• First select Automatic tuning mode from Select mode (refer to section 2).
• Press  to scroll through the modes, then press  or  to set the required value.
• To exit from Automatic tuning mode, hold down  and press  , to return to Select mode.
• Pre-tune is a single-shot routine and is thus self-disengaging when complete.
• If , Pre-tune will attempt to run at every power up*.
• Refer to the full user guide (available from your supplier) for details on controller tuning.

PRODUCT INFORMATION MODE

• First select Product information mode from Select mode (refer to section 2).
• Press  to view each parameter. To exit from Product Information mode, hold down  and press  to return to Select mode.
• Note: These parameters are all read only.

MESSAGES & ERROR INDICATIONS

These messages indicate that an error has occurred, or there is a problem with the process variable input connection or signal.
Caution: Do not continue with the process until the issue is resolved.

OPERATOR MODE

• This mode is entered at power on, or accessed from Select mode (see section 2). Note: All Configuration mode and Setup mode parameters must be set as required before starting normal operations.
• Press  to scroll through the parameters, then press or  to set the required value.
• Note: All Operator Mode parameters in Display strategy 6 are read only (see in configuration mode), they can only be adjusted via Setup mode.

Manual Valve Control
If  is set to in Setup mode, manual control can be selected/de-selected by pressing the   key in Operator mode, via serial communications, or by changing the status of a digital input if has been configured for  in Configuration mode. While in Manual Control mode, the   indicator will flash and the lower display will show . If Valve Position Indication is configured, the lower display will show P xxx instead of where xxx is the valve position as read by the Auxiliary
Input means the valve is fully closed, means the valve is fully opened.
Press   to move the valve mother in the “open” direction or   to move the valve mother in the “close” direction. Keep pressing the key until the desired valve position is achieved

SERIAL COMMUNICATIONS

Refer to the full user guide (available from your supplier) for details.

SPECIFICATONS

UNIVERSAL INPUT

• Thermocouple
  • ±0.1% of full range, ±1LSD (±1°C for Thermocouple CJC).
• Calibration:
  • BS4937, NBS125 & IEC584.
• PT100 Calibration:
  • ±0.1% of full range, ±1LSD.
  • BS1904 & DIN43760 (0.00385Ω/Ω/°C).
• DC Calibration:
  • ±0.1% of full range, ±1LSD.
• Sampling Rate:
  • 4 per second.
• Impedance:

  • 10MΩ resistive, except DC mA (5Ω) and V (47kΩ ).

• Sensor Break
  • Thermocouple, RTD, 4 to 20 mA, 2 to 10V and 1 to 5V ranges only
• Detection:
  •  “Close Valve” outputs turn ON.
• Isolation:
  • Isolated from all outputs (except SSR driver). Universal input must not be connected to operator accessible circuits if relay outputs are connected to a hazardous voltage source. Supplementary insulation or input grounding would then be required

AUXILIARY INPUT

• Calibration:
  • ±0.25% of input range ±1 LSD.
• Sampling Rate:
  • 4 per second.
• Sensor Break
  • 4 to 20 mA, 2 to 10V and 1 to 5V ranges onlyDetection:
• Valve control
  • outputs turn off if RSP is the active SP.
• Isolation:
  • Slot A – Basic isolation, Slot B – Reinforced safety isolation from other inputs and outputs.

DIGITAL INPUTS

• Volt-free(or TTL):
  • Open(2 to 24VDC) = SP1, Local SP or Auto Mode, Closed(<0.8VDC) = SP2, Remote SP or Manual Mode.
• Isolation:
  • Reinforced safety isolation from inputs and other outputs

OUTPUTS

• Relay
• Contact Type &
  • Single pole double throw (SPDT); 2A resistive.
• Rating:
  • 120VAC max. (240V for alarm or indirect switching of valves).
• Lifetime:

  • 500,000 operations at rated voltage/current.

• Isolation:
  • Basic Isolation from universal input and SSR outputs.
• Dual Relay
  • Contact Type &
• Rating:
  • 2 x single pole single throw, with shared common; 2A resistive.
  • 120VAC max. (240V for alarm or indirect switching of valves).
• Lifetime:

  • 200,000 operations at rated voltage/current.

• Isolation:
  • Reinforced safety isolation from inputs and other outputs.

SSR Driver

• Drive Capability:
  • SSR drive voltage >10V into 500Ω min.
• Isolation:
  • Not isolated from universal input or other SSR driver outputs.

Triac

• Operating Voltage:
  • 20 to 140Vrms (280V max. for alarm or indirect switching of valves) @ 47 to 63Hz.
• Current Rating:
  • 0.01 to 1A (full cycle rms on-state @ 25°C); derates linearly above 40°C to 0.5A @ 80°C.
• Isolation:
  • Reinforced safety isolation from inputs and other outputs.

DC Linear

• Resolution:
  • 8 bits in 250mS (10 bits in 1s typical, >10 bits in >1s typical).
• Isolation:
  • Reinforced safety isolation from inputs and other outputs.

Transmitter PSU

• Power Rating:
  • 19 to 28V DC (24V nominal) into 910Ω minimum resistance.
• Isolation:
  • Reinforced safety isolation from inputs and other outputs.

SERIAL COMMUNICATIONS

• Physical:
  • RS485, at 1200, 2400, 4800, 9600 or 19200 bps.
• Protocol:
  • Modbus RTU.
• Isolation:
  • Reinforced safety isolation from all inputs and outputs.

OPERATING CONDITIONS (FOR INDOOR USE)

• Ambient
• Temperature:
  • 0°C to 55°C (Operating), –20°C to 80°C (Storage).
• Relative Humidity:
• 20% to 95% non-condensing.
• Supply Voltage and Power:
  • 100 to 240VAC ±10%, 50/60Hz, 7.5VA (for mains powered versions), or
  • 20 to 48VAC 50/60Hz 7.5VA or 22 to 65VDC 5W (for low voltage versions).

ENVIRONMENTAL

• Standards:
  • CE, UL, ULC.
• EMI:
  • Complies with EN61326 (Susceptibility & Emissions).

Safety Considerations:

• Complies with EN61010-1 & UL3121.
• Pollution Degree 2, Installation Category II.
• Front Panel Sealing:
  • To IP66 (IP20 behind the panel).

PHYSICAL

• Front Bezel Size:
  • UDC120T = 48 x 48mm, UDC170T = 96 x 48mm,
• Depth Behind Panel:
  • UDC120T = 110mm, UDC170T = 100mm.
• Weight:
  • 0.21kg maximum.

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