Danfoss AK-PC 560 User Manual page 6

Condenser capacity
Definition of condenser and number of fans
Here you set the number of fan steps with which regulation has to be carried out (but
max. eight).
1-8: All fans are cut in and out with relays. The first vacant relay number is assigned to
fan 1, the next to number 2, etc. Steps after DO8 must be executed through connec-
tion of a relay module type EKC 331 to the analog output. Cf. drawing on page 12.
9: All fans controlled via the analog output and a frequency converter.
10: Not used
11-18: Total number of fan relays (as 1-8), but here the starting sequence is altered
after each time all fans are stopped.
Read temperature at sensor Sc3
Read temperature at sensor Sc4 (sensor is only used for monitoring)
Regulation parameters for the condenser regulation
Proportional band xp (P = 100/Xp)
If the Xp value is increased, the regulation becomes steadier
I: Integration time Tn
If the Tn value is increased, the regulation becomes steadier
Manual control of condenser capacity
This sets the capacity that is to be cut in when switching to manual control.
Manual control
Manual control of the condenser capacity is enabled here.
When set to ON, the capacity that is specified in "n52" is cut in.
Speed control start value
Speed control will only be activated when the capacity requirement reaches this
value.
Speed control stop value
Speed control will be stopped when the capacity requirement falls below this value.
Alarm
The controller can give alarm in different situations. When there is an alarm the light-
emitting diodes (LED) will flash on the display and the alarm relay will cut in.
(In AK-PC 560 the alarm relay may be used for a fan, if required).
P0 min. (Alarm and safety function, see also page 20.)
Here you set when the alarm at too low suction pressure is to enter into effect. The
value is set as an absolute value.
Alarm delay P0 alarm
The time delay is set in minutes. At min. setting the alarm is cancelled.
Pc max. (Alarm and safety function, see also page 20.)
Here you set when the alarm at too high condensing pressure is to enter into effect.
The value is set as an absolute value.
Alarm delay Pc alarm
The time delay is set in minutes. At min. setting the alarm is cancelled.
Alarm delay DI1 (an interrupted input will give alarm).
The time delay is set in minutes. At max. setting the alarm is cancelled.
Alarm delay DI2 (an interrupted input will give alarm).
The time delay is set in minutes. At max. setting the alarm is cancelled.
Alarm delay DI3 (an interrupted input will give alarm).
The time delay is set in minutes. At max. setting the alarm is cancelled.
Alarm limit for high temperature of the "Saux1" sensor
If an alarm is generated the digital scroll stops. With setting = Off the alarm has been
opted out.
Alarm delay from "Saux1" (A32)
If the limit value is exceeded, a timer function will commence. The alarm will not be-
come active until the set time delay has been passed. The time delay is set in minutes.
Give the top button a brief push to zeroset the alarm and to have the message shown
on the display.
6 Manual RS8GE202 © Danfoss 01-2016
Actuel zone state:
0=off. 2=-zone. 3=Neutral zone.
4=+zone.
c29 Fan mode
u44 Sc3 temp
u45 Sc4 temp
- - - - Fan Cap %
Read cut-in condenser capacity
n04 Xp K / Xp b
n05 Tn s
n52 FanManCap%
n53 FanManCap
n54 StartSpeed
n55 MinSpeed
Alarm settings
A11 Min. P0.°C / Min. P0. b
A44 P0AlrmDelay
A30 Max. Pc.°C / Max. Pc. b
A45 PcAlrmDelay
A27 DI1AlrmDelay
A28 DI2AlrmDelay
A29 DI3AlrmDelay
A32 Saux Al Lim
A03 Alarm delay
Reset alarm
The function zerosets all alarms when
set in pos. ON.
AK-PC 560