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Resource Data Management PR0018-PHI Guía de usuario Pagina 9

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Revision 7.1b Page 9 of 31
Mercury Coldroom Panel Installation Guide
www.resourcedm.com
Ensure that all power is
switched off before
installing or maintaining
this product
Input/Output Allocation Tables
The following tables indicate; on a controller type basis, the functions of the inputs and outputs. Also shown are the digital inputs that are
derived by switching in a fixed value resistor across the input
Inputs and Outputs
Coldroom Panel
Models: All
Alarm Action
Comments
Earth
Bus-bar
N/A
This unit must be Earthed
L1
Incoming Live Feed
N/A
Connection on the isolator
L2
Not Used
N/A
L3
Incoming Neutral Feed
N/A
Connection on the isolator
L
Incoming Live Feed
N/A
On the PCB (Non-isolator version)
N
Incoming Neutral Feed
N/A
On the PCB (Non-isolator version)
Input 1
Air on Temperature
Yes
Grey probe Connector
Input 2
Air off Temperature
Yes
Grey probe Connector
Input 3
Evaporator Temperature
No
Grey probe Connector
Input 4
Suction Line Temperature
No
Grey probe Connector
Input 5
Defrost Termination (if used)
No
Grey probe Connector
Input 6
Logging Probe (If fitted)
Conditional
Grey probe Connector
Door Switch
Door Switch
Yes
Uses Ground Return
Entrapment Switch
Entrapment Switch
Yes
Uses Ground Return
Compressor/LLV
N/O and N/C (N/O only on EEV)
N/A
See Specification for further details
Defrost
N/O and N/C
N/A
See Specification for further details
Fans
N/C
N/A
See Specification for further details
Lights
N/O and N/C
N/A
See Specification for further details
Out 1
Always Live (heater mats)
N/A
See Specification for further details
Out 2
Always Live (PRV)
N/A
See Specification for further details
Alarm
N/O, N/C & Common (Volt-free)
N/A
See Specification for further details
Note: -
For PT1000 probes, jumpers; LK1 & LK2, are in the outer positions for the additional switched resistor functions to operate.
For NTC probes, jumpers; LK1 & LK2, are in the inner positions for the additional switched resistor functions to operate.
Digital Inputs
Models: M
Alarm Action
Plant input
Fixed input on PCB
Yes
Man trap
Fixed input on PCB
Yes
Door Switch
Evaporator Probe
Conditional
Plant fault 1/External defrost input*
Suction Line Probe
No
Case Clean*
Models: E
Alarm Action
Plant input
Fixed input on PCB
Yes
Man trap
Fixed input on PCB
Yes
Door Switch
Air on Temperature Probe
Conditional
Plant Fault 1/External defrost input*
Air off Temperature Probe
No
Case Clean*
* For PT1000 probes, use 820 Ohm switched resistors to activate input.
For NTC2K and NTC2K25 probes, use 590 Ohm switched resistors to activate input.
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