1592001431 XC650CX GB r3.5 21.07.2020 XC650CX 45/56
Parameters
iP07: Low pressure switch 2 polarity: It establishes if the input is activated by giving (iP07=cL)
or by removing (iP07=oP) main voltage to the terminals.
Actions
Low pressure switch 2: every time the inputs are activated all the compressors of circuit 2 are
switched off. The instrument restart the standard operating mode when the input is disabled. If
there are Pen2 activation in the Pei2 time, only manual resetting is allowed, by pressing the
DOWN key for 3s or by turning off and on the instrument.
23.1.5 EA1÷EA6: Compressors and fans safeties alarm.
Terminals
WARNING: THESE TERMINALS REQUIRE A FREE OF VOLTAGE CONNECTION.
The terminals (from 11 TO 14) really used depends on the number of loads. The protections
regarding the compressors and fans are connected to these inputs. If one of these protections is
enabling (E.I. for lack of oil or overheating, etc,) the corresponding load is turn off.
Parameters
iP01, iP02, iP03, iP04,: establish if the input is activated by closing (cL) or by opening (=oP) the
terminals.
Actions
Every time one input is activated the corresponding output is turned off.
Recovery
Recovery depends on ALMr parameter:
With ALMr = no The instrument restart the standard operating mode when the input is disabled.
With ALMr = yES manual recover for the alarms of compressors and fans. Push the DOWN key
for 3s.
23.1.6 P1, P2; P3,P4: probe failure alarm
It is generated by failure in the probe P1, P2 , P3 or P4.
In case of P1 fault, number of steps engaged depends on the SPr parameter
In case of P2 fault, number of fans engaged depends on the FPr parameter
If the P3 or P4 probes are used for dynamic set point
The function is disabled and only the standard set point is used.
Recovery
Automatic as soon as probe restarts working.
23.1.7 C1HA, C1LA, C2HA, C2LA F-HA, F-LA High and low pressure
(temperature) alarms for compressors or fans
This alarm signals that the pressure (temperature) is out of limits established by parameters LAL
and HAL for compressors and LAF –HAF for fans.
The tAo and AFd parameters set the delay between alarm condition and alarm signaling.
Action
The alarm is signaled with standard action. The outputs are unchanged.
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