EKC 531D1 Instructions RI8HU352 © Danfoss 12/2004 5
The controller can give the following messages
E1 Error
message
Fault in controller
E2 Regulation is outside the range, or the control
signal is defective
A2 Alarm
message
Low P0
A11 Refrigerant not selected
A17 High Pc
A19 DO 1 alarm. Terminal 29 is open
A20 DO 2 alarm. Terminal 30 is open
A21 DO 3 alarm. Terminal 31 is open
A22 DO 4 alarm. Terminal 32 is open
A23 DO 5 alarm. Terminal 33 is open
A24 DO 6 alarm. Terminal 34 is open
A25 DO 7 alarm. Terminal 35 is open
A26 DO 8 alarm. Terminal 36 is open
A27 Room temperature alarm (housing 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
A45 Regulation stopped
S2 Status
message
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
PS Info Access code is required before you have access to
the settings
Step 4 (M&M operation) c20 0 15 0
Step 5 (M&M operation) c21 0 15 0
Step 6 (M&M operation) c22 0 15 0
Step 7 (M&M operation) c23 0 15 0
Step 8 (M&M operation) c24 0 15 0
Step 9 (M&M operation) c25 0 15 0
Step 10 (M&M operation) c26 0 15 0
Step 11 (M&M operation) c27 0 15 0
Step 12 (M&M operation) c28 0 15 0
Defi nition of condenser:
1-8: Total number of fan relays
9: Only via analog output and start of
frequency converter
c29 0/OFF 9 0
Proportinal band Xp for (P= 100/Xp) con-
denser regulation
n04 0.2 K 40 K 10
I: Integration time Tn for condenser regula-
tion
n05 30 s 600 s 150
Alarm
Delay time for a "Saux1" alarm A03 0 min. 90 min 30
Low alarm and safety limit for P0 A11 -99°C 30°C -10
Delay time for a DI1 alarm A27 1 s
600 s
/off
600
Delay time for a DI2 alarm A28 1 s
600 s
/off
600
Delay time for a DI3 alarm A29 1 s
600 s
/off
600
Upper alarm and safety limit for Pc A30 -10 °C 99 °C 60.0
Upper alarm limit for sensor "Saux1" A32
0 °C
/off
140°C 0.0
Miscellaneous
Controllers address o03* 1 60
On/off switch (service-pin message) o04* - -
Access code o05 off (-1) 100
Used sensor type for Sc3, Sc4 and "Saux1"
0=PT1000, 1=PTC1000
2-7=variations with temperature sensor
on P0 and Pc. See earlier in the manual.
o06 0 7 0
Set supply voltage frequency o12 50 Hz 60 H 0
Manual control of outputs:
0: No override
1-10: 1 will cut in relay 1, 2 relay 2, etc.
11-18: Gives voltage signal on the analog
output. (11 gives 1.25 V, and so on in steps
of 1.25 V
o18 0 18 0
P0 pressure transmitter’s working range
- min. value
o20 -1 bar 0 bar -1.0
P0 pressure transmitter’s working range
- max. value
o21 1 bar 40 bar 12.0
Use of DI4-input
0=not used. 1=P0 displacement. 2=alarm
function. Alarm="A31"
o22 0 2 0
Operating hours of relay 1 (value time
1000)
o23 0.0 h 99.9 h 0.0
Operating hours of relay 2 (value time
1000)
o24 0.0 h 99.9 h 0.0
Operating hours of relay 3 (value time
1000
o25 0.0 h 99.9 h 0.0
Operating hours of relay 4 (value time
1000)
o26 0.0 h 99.9 h 0.0
Setting of refrigerant
1=R12. 2=R22. 3=R134a. 4=R502.
5=R717. 6=R13. 7=R13b1. 8=R23.
9=R500. 10=R503. 11=R114. 12=R142b.
13=User defi ned. 14=R32. 15=R227.
16=R401A. 17=R507. 18=R402A.
19=R404A. 20=R407C. 21=R407A.
22=R407B. 23=R410A. 24=R170.
25=R290. 26=R600. 27=R600a. 28=R744.
29=R1270. 30=R417A
o30 0 30 0
Use of DI5-input
0=not used. 1=Pc displacment. 2=alarm
function. Alarm="A32"
o37 0 2 0
Pc pressure transmitter’s working range
- min. value
o47 -1 bar 0 bar -1.0
Pc pressure transmitter’s working range
- max. value
o48 1 bar 60 bar 34.0
Read temperature at sensor "Saux1" o49 0.0 °C °C 22.4
Operating hours of relay 5 (value time
1000)
o50 0.0 h 99.9 h 0.0
Operating hours of relay 6 (value time
1000)
o51 0.0 h 99.9 h 0.0
Operating hours of relay 7 (value time
1000)
o52 0.0 h 99.9 h 0.0
Operating hours of relay 8 (value time
1000)
o53 0.0 h 99.9 h 0.0
Service
Read temperature at sensor "Sc3" u44 °C 23.5
Read temperature at sensor "Sc4" u45 °C 8.1
*) This setting will only be possible if a data communication moduel has
been installed in the controller.