Honeywell UDC120L - Controller Manual

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

INSTALLATION

Installing Option Modules

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

1. Plug the required option modules into the correct connectors, as shown below.
2. Locate the module tongues in the corresponding slot on the opposite board.
3. Hold the main boards together while relocating back on the mounting struts.
4. 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
For n multiple instruments mounted side-by-side, cut-out is 48n-4mm

Slide mounting clamp over the instrument housing towards rear face of mounting panel until the tongues engage in ratchets and instrument is clamped in position.

Hold instrument firmly in position (apply pressure to bezel only)

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)

Actual connections required depend on the options fitted.

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

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: At first power-up the message is displayed. Access to other menus is denied until configuration mode is completed

Mode	Upper Display	Lower Display	Description	Default Unlock Codes
Operator			Normal operation	None
Set Up			Tailor settings to the application
Configuration			Configure the instrument for use
Product Info			Check manufacturing information	None

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. 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.

Parameter	Lower Display	Upper Display	Adjustment range & Description		Default Value
Input Range/Type		See following table for possible codes
Code	Input Type & Range	Code	Input Type & Range	Code	Input Type & Range
	B: 100 - 1824 ºC		L: 0.0 - 537.7 ºC		PtRh20% vs 40%: 32 - 3362 ºF
	B: 211 - 3315 ºF		L: 32.0 - 999.9 ºF
	C: 0 - 2320 ºC		N: 0 - 1399 ºC		Pt100: –199 - 800 ºC
	C: 32 - 4208 ºF		N: 32 - 2551 ºF		Pt100: –328 - 1472 ºF
	J: –200 - 1200 ºC		R: 0 - 1759 ºC		Pt100: –128.8 - 537.7 ºC
	J: –328 - 2192 ºF		R: 32 - 3198 ºF		Pt100: –199.9 - 999.9 ºF
	J: –128.8 - 537.7 ºC		S: 0 - 1762 ºC		0 - 20 mA DC
	J: –199.9 - 999.9 ºF		S: 32 - 3204 ºF		4 - 20 mA DC
	K: –240 - 1373 ºC		T: –240 - 400 ºC		0 - 50 mV DC
	K: –400 - 2503 ºF		T: –400 - 752 ºF		10 - 50 mV DC
	K: –128.8 - 537.7 ºC		T: –128.8 - 400.0 ºC		0 - 5 V DC
	K: –199.9 - 999.9 ºF		T: –199.9 - 752.0 ºF		1 - 5 V DC
	L: 0 - 762 ºC		PtRh20% vs. 40%: 0 - 1850 ºC		0 - 10 V DC
	L: 32 - 1403 ºF				2 - 10 V DC
Note: Decimal point shown in table indicates temperature resolution of 0.1°
Parameter	Lower Display	Upper Display	Adjustment range & Description		Default Value
Scale Range Upper Limit		Scale Range Lower Limit +100to Range Maximum			Range max (Lin=1000)
Scale Range Lower Limit		Scale Range Upper Limit -100Range Minimum to			Range min (Linear=0)
Decimal point position		=XXXX, =XXX.X, =XX.XX, =X.XXX (non-temperature ranges only)
Process Variable Offset		±Span of controller (see CAUTION note at end of section)
Limit Action			High Limit. Limit relay is energised when process "safe" (PV < Limit Setpoint)
			Low Limit. Limit relay is energised when process "safe" (PV > Limit Setpoint)
Setpoint Upper Limit		Current Setpoint to Scale Range maximum			R/max
Setpoint Lower Limit		Scale Range minimum to Current Setpoint			R/min
Alarm 1Type			Process High Alarm
			Process Low Alarm
			Deviation Alarm
			Band Alarm
			No alarm
High Alarm 1 value*		Scaled Range Minimum to scaled Range Maximum in display units			Range Max
Low Alarm 1 value*					Range Min
Band Alarm 1 value*		1 LSD to span from setpoint in display units
Dev. Alarm 1 value*		+/- Span from setpoint in display units
Alarm 1 Hysteresis*		1 LSD to full span in display units
Alarm 2 Type*		Options as for alarm 1
High Alarm 2 value*					Range Max
Low Alarm 2 value*					Range Min
Band Alarm 2 value*
Dev. Alarm 2 Value*
Alarm 2 Hysteresis*
Output 2 Usage			Limit Output Relay
			Alarm 1, Direct
			Alarm 1, Reverse
			Alarm 2, Direct
			Alarm 2, Reverse
			Logical Alarm 1 OR 2, Direct
			Logical Alarm 1 OR 2, Reverse
			Logical Alarm 1 AND 2, Direct
			Logical Alarm 1 AND 2, Reverse
			Limit Annunciator, Direct
			Limit Annunciator, Reverse
			Retransmit Limit SP Output
			Retransmit PV Output
Linear Output 2 Range			0 to 5 V DC output 1
			0 to 10 V DC output
			2 to 10 V DC output
			0 to 20 mA DC output
			4 to 20 mA DC output
Retransmit Output 2 Scale maximum		-1999 to 9999 (display value at which output will be maximum)			Range max
Retransmit Output 3 Scale minimum		-1999 to 9999 (display value at which output will be minimum)			Range min
Output 3 Usage		As for output 2
Linear Output 3 Range		As for output 2
Retransmit Output 3 Scale maximum		-1999 to 9999 (display value at which output will be maximum)			Range max
Retransmit Output 3 Scale minimum		-1999 to 9999 (display value at which output will be minimum)			Range min
Display Strategy			PV is visible in Operator mode
Display Strategy			PV not visible in Operator mode
Serial Communications Protocol			ASCII
			Modbus with no parity
			Modbus with Even Parity
			Modbus with Odd Parity
Serial Communications Bit Rate			1.2 kbps
			2.4 kbps
			4.8 kbps
			9.6 kbps
			19.2 kbps
Comms Address		*1 to 255 (Modbus), 1 to 99 (ASCII)
Comms Write			Read/Write
			Read only
Configuration Lock Code		0 to 9999

Notes: Output 1 is always a Latching Limit Relay output.
If Option Slot A has the Digital Input module fitted, this always functions as a Remote Reset, duplicating the function of the Reset) key .
As these functions cannot be changed, no Configuration menus are required.

Process Variable Offset can be use to modify the measured value to compensate for probe errors. Positive values increase the reading, negative values are subtracted. This parameter is effectively, a calibration adjustment and MUST be used with care.
There is no front panel indication of when this parameter is in use.

SETUP MODE

Note: Configuration must be completed before adjusting Setup parameters.
First select Setup mode from Select mode. The Setup 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.

Parameter	Lower Display	Upper Display Adjustment Range & Description	Default Value
Limit Setpoint value		Scaled Range Minimum to scaled Range Maximum	R/max if , R/min if
Limit Hysteresis		1 LSD to full span in display units, on the safe side of the limit SP
Input Filter Time Constant		OFF or 0.5 to 100.0 secs (see CAUTION note below)
High Alarm 1 value		Scaled Range Minimum to	R/max
Low Alarm 1 value		scaled Range Maximum	R/min
Deviation Alarm 1 Value		±Span from SP in display units
Band Alarm 1 value		1 LSD to span from setpoint
Alarm 1 Hysteresis		1 LSD to full span in display units
High Alarm 2 value		Scaled Range Minimum to	R/max
Low Alarm 2 value		scaled Range Maximum	R/min
Deviation Alarm 2 Value		±Span from SP in display units
Band Alarm 2 value		1 LSD to span from setpoint
Alarm 2 Hysteresis		1 LSD to full span in display units
Setup Lock Code		0 to 9999

Note: Operator mode screens follow, without exiting from Setup mode.

An excessively large filter time could significantly delay detection of a limit condition. Set this value to the minimum required to remove noise from the process variable

PRODUCT INFORMATION MODE

First select Product information mode from Select mode.
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.

Parameter	Lower Display	Upper Display	Description
Input type			Universal input
Option 1 type (fixed)			Latching Limit Relay
Option 2 module type fitted			No option fitted
			Relay output
			SSR drive output
			Triac output
			Linear DC voltage / current output
Option 3 module type fitted			No option fitted
			Relay output
			SSR drive output
			Linear DC voltage / current output
			24VDC Transmitter power supply
Auxiliary Option A module type fitted			No option fitted
			RS485 communications
			Digital Input for remote reset
Firmware type		Value displayed is firmware type number
Firmware issue		Value displayed is firmware issue number
Product Revision Level		Value displayed is Product Revision level
Date of manufacture		Manufacturing date code (mmyy)
Serial number 1		First four digits of serial number
Serial number 2		Middle four digits of serial number
Serial number 3		Last four digits of serial number

MESSAGES & ERROR INDICATIONS

Parameter	Upper Display	Lower Display	Description
Instrument parameters are in default conditions			Configuration & Setup required. This screen is seen at first turn on, or if hardware configuration has been changed. Press to enter the Configuration Mode, next press or to enter the unlock code number, then press to proceed
Input Over Range		Normal	Process variable input > 5% over-range
Input Under Range		Normal	Process variable input > 5% under-range
Input Sensor Break		Normal	Break detected in process variable input sensor or wiring
Option 1 Error			Option 1 module fault
Option 2 Error			Option 2 module fault
Option 3 Error			Option 3 module fault
Option A Error			Option A module fault

OPERATOR MODE

This mode is entered at power on, or accessed from Select mode.
Note: All Configuration mode and Setup mode parameters must be set as required before starting normal operations.
Press to scroll through the parameters.

Upper Display	Lower Display	Display Strategy and When Visible	Description
PV Value	Limit SP Value	(initial screen)	PV and Limit Setpoint values Read only
Limit SP Value	(Blank)	(initial screen)	Limit Setpoint value Read only
High Limit Hold			Highest PV value since this parameter was last reset. To reset, press for 5 seconds, display = when reset
Low Limit Hold			Lowest PV value since this parameter was last reset. To reset, press for 5 seconds, display = when reset
Exceed Time Value		Always available Format mm.ss to 99.59 then mmm.s (10 sec increments) Shows if ≥999.9	Accumulated time of Limit SP exceed conditions since this parameter was last reset. To reset, press for 5 seconds, display = when reset
Active Alarm Status		When one or more alarms are active. ALM indicator will also flash*

Exceed Condition
An Exceed Condition is when the Process Variable exceeds the Limit Setpoint value (i.e. PV > SP when set for high limit action, PV < SP for low limit action). The LED is on during this condition, and is extinguished once it has passed.

Limit Output Function
Limit Output relay(s) de-energise whenever an Exceed condition occurs, causing the process to shut down. The LED is on when the relay is de-energised. The relay remains latched off even if the Exceed condition is no longer present. Only giving a reset instruction (after the exceed condition has passed) will reenergise the relay, allowing the process to continue. The LED then turns off.

Limit Annunciator Outputs
An Annunciator output will activate when an Exceed condition occurs, and will remain active until a reset instruction is received, or the Exceed condition has passed. Unlike the Limit Output, an Annunciator can be reset even if the Exceed condition is present. When an Annunciator is active, the LED will flash and the Alarm Status screen is available.

Resetting Limit Outputs & Annunciators
A reset instruction can be given by pressing the key, via the Digital Input (if fitted) or via a Comms command if an RS485 Communications module is fitted. Annunciators will deactivate. Limit Outputs will only re-energise if the Exceed condition has passed.

Ensure that the cause of the Exceed condition has been rectified before resetting the Limit Output.

SPECIFICATIONS

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 (0.00385 Ω / 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 Detection: Thermocouple, RTD, 4 to 20 mA, 2 to 10V and 1 to 5V ranges only. Limit outputs turn off (goes into Exceed condition), high alarms activate for thermocouple/RTD sensor break, low alarms activate for mA/V DC sensor break.
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.

DIGITAL INPUT
Volt-free(or TTL): Open(2 to 24VDC) = No Reset. Closed(<0.8VDC) = Reset (edge triggered).
Isolation: Reinforced safety isolation from inputs and other outputs.

OUTPUTS
Limit Relay
Contact Type & Latching limit control relay. Single pole double throw (SPDT);
Rating: 5A resistive at 120/240VAC. Slot 1 position fixed for this function, optional function for Slot 2 & 3 relay modules,
Lifetime: >100,000 operations at rated voltage/current.
Isolation: Basic Isolation from universal input and SSR outputs.

Alarm Relays
Contact Type & Slot 2 or 3 position non-latching alarm relay.
Rating: Single pole double throw (SPDT); 2A resistive at 120/240VAC.
Lifetime: >500,000 operations at rated voltage/current.
Isolation: Basic Isolation from universal input and SSR 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 280Vrms (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
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: 20 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.
Protocols: Selectable between Modbus and ASCII.
Isolation: Reinforced safety isolation from all inputs and outputs.

OPERATING CONDITIONS (FOR INDOOR USE)
Ambient 0°C to 55°C (Operating), –20°C to 80°C (Storage).
Temperature:
Relative Humidity: 20% to 95% non-condensing.
Supply Voltage and 100 to 240VAC ±10%, 50/60Hz, 7.5VA
Power: (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 & FM 3545, 1998
EMI: Complies with EN61326 (Susceptibility & Emissions).
Safety Complies with EN61010-1 & UL3121.
Considerations: Pollution Degree 2, Installation Category II.
Front Panel Sealing: To IP66 (IP20 behind the panel).

PHYSICAL
Front Bezel Size: 48 x 48mm
Depth Behind Panel: 110mm.
Weight: 0.21kg maximum.

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