Danfoss AK-PC 351 Installation guide [de]
Identication
Principle
Instructions
AK-PC 351
IP 20
-20 - 60°C
(0 - 140°F)
RH max. 90% non condensing
080G0289 = 24 V a.c. / d.c. 9 VA
Dimensions
RI8RB2ML 09-2014
DIN rail only (IP 20)
ENGLISH
Connection, lower level
All 24 V or
all 230 V a.c.
Connection, upper level
Warning
The supply voltage of AI may
not share the signal with
other controllers.
Supply Voltage
24 V a.c. or 24 V d.c.
DO - Digital outputs, 6 pcs. DO1 - DO6
DO6 is solid state relay.
The relays are de-rated to the specied values.
If an alarm relay is dened, it will be driven under normal operation and it will drop in the event of alarms and insucient
power to the controller.
DO DO1-DO5 DO6
I Max. 5 A
(2)
U All 24 V or
all 230 V a.c.
AKS 32R
AKS 32
AKS 33
0,5 A
min. 50 mA
Io < 1,5 mA
10-90% ratiometric
1-5 V
0-20mA
4-20mA
AI - Analogue inputs, 4 pcs. AI1 - AI4
AI1- Sc3: Pt 1000 ohm, AKS 11 or AKS 21.
AI2 - Sd compressor 1: NTC 86K ohm @ 25°C, from digital scroll
or Pt 1000 ohm
AI3: Presure transmitter Po or temperature sensor S4, Pt 1000
ohm
AI4: Pressure transmitter Pc or temperature sensor S7, Pt 1000
ohm
Pressure transmitters
• Ratiometric: 10-90% of supply, AKS 32R / AKS 2050
• Signal: 1-5 V, AKS 32
• Current: 0-20 mA / 4-20 mA, AKS 33 (supply = 12 V)
DI - Digital switch inputs, 8 pcs. DI1 - DI8
The connection may be a shut-down or interruption function.
Select what is to be activated during conguration.
DI1-4: Safety circuits, compressor 1, 2, 3 and 4
DI5: Safety circuits, condenser fans
DI6: External Main Switch
DI7: Night signal or LP switch
DI8 General alarm or HP switch
AO - Analogue output, 2 pcs. AO1 - AO2
Must be used when using a frequency converter or EC motors.
Obtain 0-10 volts from terminals COM and AO1 (compressor),
respectively COM and AO2 (fans).
Modbus
It is important that the installation of the data communication
cable be done correctly. Cf. separate literature No. RC8AC.
Remember termination at the bus termination.
2 Instructions RI8RB2ML © Danfoss 09/2014 AK-PC 351
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