Danfoss AK-PC 351 User Manual

AK-PC 351 User Guide RS8GZ302 © Danfoss 2015-06 11
PWM Max cycle For scroll
Limitation of capacity during time period. There is no limit if the setting in 100%.
Min: 60%
Max: 100%
Fac: 100%
Comp. 1 Sd temp. For “Scroll” and “Stream”
Dene whether the controller should monitor the discharge gas temperature Sd from a
digital scroll or a stream compressor (NTC 86K or Pt 1000 Ohm).
AI-demand
No / Yes
Fac: No
Comp. 1 Sd max. For scroll and Stream and yes to “Comp.1 Sd temp”
Set the maximum Sd temperature
Min: 0°C
Max: 195°C
Fac: 125°C
Compressor timers Compressor timers
Lead comp. Min ON Min. On-time for rst compressor
Set a forced On-time here during which the compressor will remain in operation before it
can be switched o again. The setting is to prevent incorrect operation.
To prevent a compressor breakdown, the setting must be made in accordance with the
requirements of the compressor supplier.
Min: 0 min
Max: 60 min
Fac: 0 min
Lead comp. Min OFF Min. O-time for rst compressor
Set the forced O-time during which the compressor must be o before it can be switched
on again. The setting is to prevent incorrect operation.
Min: 0 min.
Max: 30 min
Fac: 0 min
Lead comp. Restart Min. period of time for re-starting the rst compressor.
Set the forced O-time during which the compressor must be o before it can be switched
on again. The setting is to prevent incorrect operation.
To prevent a compressor breakdown, the setting must be made in accordance with the
requirements of the compressor supplier.
Min: 1 min.
Max: 60 min
Fac: 4 min
Lead comp. Safety
delay
Delay time before compressor no. 1 cut out for reasons of safety
The time begins when a signal is received on the safety input for the compressor
Min: 1 min.
Max: 10 min
Fac: 1 min
Comp. Min ON Min. On-time for remaining compressors
Set a forced On-time here during which the compressor will remain in operation before it
can be switched o again. The setting is to prevent incorrect operation.
Min: 0 min.
Max: 60 min
Fac: 0 min
Comp. Min OFF Min. O-time for remaining compressors
Set the forced O-time during which the compressor must be o before it can be switched
on again. The setting is to prevent incorrect operation.
Min: 0 min.
Max: 30 min
Fac: 0 min
Comp. Restart Min. period of time for restarting remaining compressors
Set the forced O-time during which the compressor must be o before it can be
switched on again. The setting is to prevent incorrect operation.
Min: 1 min.
Max: 60 min
Fac: 4 min
Comp. Safety delay Delay time before compressors cut out for reasons of safety
The time begins when a signal is received on the safety input for the compressor
Min: 1 min.
Max: 10 min
Fac: 0 min
Compressor status Compressor status
Comp. 1 Sd gas Read the Sd temperature of the compressor here.
Comp. 1 status Read the operating status for compressor 1 here. The following information may appear:
Power up=startup. O= compressor stoppt. Manual ctrl=compressor manual controlled.
Cut out on safety=stoppt due to signal on DI-input. Restart timer=await timeout of time
delay. Ready=ready to start. Min OFF timer=await time out of time delay. Min. ON timer=await
timout of time delay. Full load=compressor works 100%. Running=compressor running.
Disabled=stoppt due to service
Comp. 2.... The same function for the remaining compressors
Compressor capacity Compressor capacity
Comp. 1 cap Read the connected capacity of the compressor (0-100%) here
Comp. 2...... The same function for the remaining compressors
Compressor runhours Compressor run hours
Reset runtime Reset all of the hour counters and start counters for the subsequent compressors here.
Comp.1 Runtime L Read the total operating time of the compressor (in hours) here
Comp.2..... The same function for the remaining compressors
Compressor service Compressor service
Comp.1 out of service The compressor can be taken out of operation, so that the controller regulates without this
compressor.
No = Normal regulation
Yes = Regulating is carried out without this compressor, and no alarms are generated by it.
Yes /No
Fac: No
Comp.2..... The same function for the remaining compressors

Danfoss AK-PC 351 Specifications

General

Brand	Danfoss
Model	AK-PC 351
Category	Controller
Language	English