Time delay on S6 (product sensor) for pull-down
(long alarm delay)
This time delay is used for start-up, during defrosting, immediately after a defrost and after
an appliance clean.
A change is carried out to standard time delay (A26) when the temperature has reached
below the set upper alarm limit.
The time delay is set in minutes.
A52
PullD del.S6
Hot brine alarm
If the S7 brine temperature gets higher than the set value, an alarm will be delivered. If two
compressors are in use, compressor 2 will be stopped for as long as the temperature is too
high.
A76
MaxS7BrineT.
Brine alarm differential
The alarm is cleared, and operation of compressor 2 allowed again when the S7
temperature is lower than "A76" minus the differential.
A77
S7Brine Diff
Reset alarm
Ctrl. Error (EKC error)
Compressor
Compressor control
The compressor relay works in conjunction with the thermostat. When the thermostat calls
for refrigeration the compressor relay (relays) will be operated.
In Application mode 2 it is only the "Compressor 2" relay that is used as start signal. The
capacity is controlled via the 0 - 10 V output.
Running times
To prevent irregular operation, values can be set for the time the compressor is to run once
it has been started. And for how long it at least has to be stopped.
The running times are not observed when defrosts start.
Min. ON-time (in minutes)
c01
Min. On time
Min. OFF-time (in minutes)
c02
Min. Off time
Time delay for couplings of two compressors
Settings indicate the time that has to elapse from the first relay cuts in and until the next
relay has to cut in.
c05
Step delay
VSD min Speed
Minimum allowed compressor speed
c46
CompMinSpeed
VSD start speed
The requested start speed for the compressor (must be set to a higher value than “VSD min
speed”). After start this speed is maintained for 10 seconds before variation is possible
c47
CompStrSpeed
VSD max speed
The maximum allowed compressor speed
c48
CompMaxSpeed
Kp factor
For the PI control of the variable speed compressor
c82
Comp Kp
Tn factor
For the PI control of the variable speed compressor
c83
Comp Tn sec
Compressor on-time at sensor error
Output "Compressor 1" only. ("Compressor 2" is off.)
c86
CmpOn T Err
Compressor off-time at sensor error
Output "Compressor 1"
c87
CmpOff Err
VSD speed at sensor error
The fixed speed at which the compressor will run during error on the control sensor
c93
CmpEmrgSpeed
Slope rate
Limitation on how fast the compressor speed can change is set in Hz / second
c96
MaxSlopeRate
Kp max factor
Max value for Kp at great deviation from the temperature setpoint for the PI control of the
variable speed compressor
n95
Cmp Kp Max
The LED on the controller’s front will show whether refrigeration is in progress
Comp Relay / Comp2 Relay
Here you can read the status of the
compressor relay.
User Guide | Controller for SemiPlugin appliance, AK-CC 460
12 | BC230086440483en-000201
© Danfoss | DCS (vt) | 2019.12