1592001530 XC15-35CX EN r1.2 11.04.2017 XC15-35CX 21/40
Offset for differential HY1: used to move the regulation band above and below St1
- P1C=NTC, PT1000 0.0 to 25.5°C; 0 to 45°F
- P1C=0-5 0.0 to 9.9 bar; 0 to 999 PSI
Proportional Integral (PI) time: integration time for PI-regulator that acts on the
compressor. If inC=0 then regulation will be pure proportional.
Regulation filter for PI-regulator: n=filter disabled; Y=average filter enabled
Safety value for PI-regulator used in case of probe error: 0 to 100%
Start-up time: (0.0 to 10.0 sec) interval of time with digital valve (oA3=dGt) or
inverter at 100% (oAn=inV) before starting regulation. NOTE: user from digital or
inverter-controlled compressor
Modulation time interval: (10 to 40 sec)
- If using of Digital compressors (oA3=dGt, d4d) then it is the cycle
modulation time
- If using inverter-controlled compressors (oAn=inV) then it is the interval of
time used from filter to calculate the pressure/temperature average value
Minimum compressor power: (0% to PMA) minimum power, in percentage, for
controlling the compressor (digital or inverter driven type)
Maximum compressor power: (PMi to 100%) maximum power, in percentage, for
controlling the compressor (digital or inverter driven type)
Delay before activating a second compressor: (0 to 255 sec) interval of time with
compressor power at PMA before activating another load (valid if oA2=CP2)
Delay before deactivating a second compressor: (0 to 255 sec) interval of time
with compressor power at PMi before deactivating another load (valid if oA2=CP2)
Control signal increasing for inverter-controlled compressors: (0 to 100%, StP)
the analogue output value (oAn) will be increased proportionally to voS to the
expiration of regular intervals of 1 min and up to the calculated value by the PI-
controller. If voS=StP, then the analog output will go immediately to the value
calculated by the PI-controller.
Control signal increasing for inverter-controlled compressors: (0 to 100%, StP)
the analogue output value (oAn) will be decreased proportionally to vo2 to the
expiration of regular intervals of 1 min and up to the calculated value by the PI-
controller. If vo2=StP, then the analog output will go immediately to the value
calculated by the PI-controller
Time interval with compressor PMi during start-up phase: (0 to 255 min) after
starting the regulation, the compressor will be forced to minimum power for t1n
minutes (valid only for inverter-controlled compressors).
Time interval with compressor PMi before stopping regulation: (0 to 255 min)
before stopping the regulation the compressor will be forced to minimum power for
t1F minutes (valid only for inverter-controlled compressors).
Minimum compressor working power for lubrication control (0 to 100%,
0=function disabled): If compressor works for tMi at a value lower than MnP, it will
be forced to work at maximum power (PMA) for tMA. After that, the normal
regulation will be restarted.
Compressor running at a value below MnP: 1 to 255 min
Time with compressor at PMA for lubrification: 1 to 255 min
Modulated compressor is always the first to be activated (valid only for
tandem units and if oAn=inV or oA3=dGt, d4d): n=after starting the regulation,
the compressor with the lower number of working hours will be activated (if roC=Y);
Y=after starting the regulation, the variable capacity compressor will always be the
first to be activated.
15.6 DISCHARGE LINE TEMPERATURE ALARM
Temperature probe selection: nP; P3; P4