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4
Planning table
The table helps you establish whether there are enough
inputs and outputs on the basic controller.
If there are not enough of them, the controller must be
extended by one or more of the mentioned extension
modules.
Note down the connections you will require and add
them up
Analog inputs
Temperature sensors, Ss, Sd, Sc3, S4, S7, Stw.., Shr..,
Extra temperature sensor / separate thermostats /PI-regulation
Pressure transmitters, P0, Pc, Prec / separate pressostats
Voltage signal from other regulation, separate signals
Heat recovery via thermostat
On/off inputs
Safety circuits, common for all compressors
Safety circuits, Oil pressure
Safety circuits, comp. Motor protection
Safety circuits, comp. Motor temp.
Safety circuits, comp. High pres. thermostat
Safety circuits, comp. High pres. pressostat
Safety circuits, general for each compressor
Safety circuits, condenser fans, frequency converter
Safety circuits, flow switch
External start/stop
Night setback of suction pressure
Separate alarm functions via DI
Load shedding
Start of Heat recovery
Liquid level, Oil level, Pulse reset of oil management
On/off outputs
Compressors, motors
Unloaders
Fan motors, circulation pumps
Alarm relay, I'm alive relay
Inject ON
Separate thermostat and pressostat functions and voltage measure-
ments
Heat recovery function via thermostat
Liquid injection in suction line / heat exchanger
Signal for external cascade control
Solenoid valve for Oil.
3-way valve
Analog control signal, 0-10 V
Frequency converter, Compressor, fans, pumps, valves etc.
Valves with stepper motor. Parallel valves, if applicable
Sum of connections for the regulation
Number of connections on a controller module
5
Missing connections, if applicable
6
The missing connections to be supplied by one or more extension modules:
AK-XM 101A (8 analog inputs)
AK-XM 102A (8 digital low voltage inputs)
AK-XM 102B (8 digital high voltage outputs)
AK-XM 103A (4 analog inputs, 4 analog outputs)
AK-XM 204A / B (8 relay outputs)
AK-XM 205A / B (8 analog inputs. + 8 relay output)
AK-XM 208C (8 analog inputs + 4 stepper outputs)
AK_OB 110 (2 analog outputs)
AK-PC 783
Contact
11
Capacity controller RS8GN202 © Danfoss 11-2013
7
0
5
24 V
230 V
2
6
6
18
0
8
11
0
0
0
0
8
7
-
8
1
1
1
7
P = Max. 5 / module
Max.2
Max. 1/ Comp.
Max. 1/ fan
6
1
Max. 2
Max. 5+5+5
Max.1
1
3
3
1
3+1 Sum = max. 120
11
8
0
0
0
3
3+1
Sum of power
___ pcs. á 2 VA = __
___ pcs. á 2 VA = __
___ pcs. á 2 VA = __
1
___ pcs. á 2 VA = __
___ pcs. á 5 VA = __
1
___ pcs. á 5 VA = __
1
___ pcs. á 5 VA = __
___ pcs. á 0 VA = 0
1 pcs. á 8 VA = 8
Sum =
Sum = max. 32 VA
37
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