
Warning
Please Note
The specifications of the product detailed on this
Set-Up Guide may change without notice. RDM
Ltd. shall not be liable for errors or for incidental
or consequential damages, directly and indirectly,
in connection with the furnishing, performance or
misuse of this product or document.
Ensure that all power is
switched off before
installing or maintaining
this product
Revision 2.7 Page 55 of 83
Mercury Plant Controller Installation Guide
Configuration of inputs and outputs:
Status Inputs
Section Inputs can be set up as: -
When selected “Make” to generate Compressor Fault
Compressor Normally Closed
When selected “Break” to generate Compressor Fault
When selected “Make” to generate Condenser Fault
Condenser Normally Closed
When selected “Break” to generate Condenser Fault
When selected “Make” to generate General Fault
When selected “Break” to generate General Fault
When selected “Make” to place Section 1 into standby and generate Standby
alarm.
Standby 1 Normally Closed
When selected “Break” to place Section 1 into standby and generate
Standby alarm.
When selected “Make” to place Section 2 into standby and generate Standby
alarm.
Standby 2 Normally Closed
When selected “Break” to place Section 2 into standby and generate
Standby alarm.
When selected “Break” to use Sect 1 Ext Target (P473) OR “Rem Ext 1”
See note : Ext Target
When selected “Make” input to use Sect 1 Ext Target (P473) OR “Rem Ext 1”
See note : Ext Target
When selected “Break” input to use Sect 2 Ext Target (P474) OR “Rem Ext
2” See Note : Ext Target
When selected “Make” input to use Sect 2 Ext Target (P474) OR “Rem Ext 2”
See note : Ext Target
When selected “Break” to signal Inverter Run. See Note : INV Bypass
When selected “Make” to signal Inverter Run. See Note : INV Bypass
For the above any alarms will be generated after the Status Fault Delay (P-60) has timed out. Note Standby Alarm
follows the General Fault Delay (P-60)
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