Danfoss AK-PC 520 Mode D'emploi page 8

The controller can give the following messages
E1 Error Fault in controller
message
E2 Regulation is outside the range, or the control
signal is defective
Alarm
A2 Low P0
message
A11 Refrigerant not selected
A17 High Pc
A19 Compressor 1 error
A20 Compressor 2 error
A21 Compressor 3 error
A22
Compressor 4 error
A27 Room temperature alarm (Saux1 temp.)
A28 DI 1 alarm. Terminal 46 interrupted
A29 DI 2 alarm. Terminal 47 interrupted
A30 DI 3 alarm. Terminal 49 interrupted
A31 DI 4 alarm. Terminal 50 interrupted
A32 DI 5 alarm. Terminal 52 interrupted
A34 Fan alarm. There is no signal on DI1 input
A45 Regulation stopped
Status
S0 Regulation
message
S2 Wait for "c01"
S5 Wait for "c07"
S8 Wait for "c11" or "c12"
S9 Wait for "c14" or "c15"
S10 Refrigeration stopped by the internal or external
start/stop function
S25 Manual control of outputs
S34 Safety cutout. Setting A30 is exceeded or all
safety inputs (29-32) are open
Info
PS Access code is required before you have access to
the settings
8
The actual compressors
safety circuit is
interrupted.
That is to say the signal
is missing on one of the
terminals 29-32
Instructions RI8NM252 © Danfoss 12/2009 AK-PC 520