Danfoss VLT Inverter Scroll CDS 801, Operating Instructions Manual

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3.6.4 Sensor Connections
Connect the sensors as marked on the PCB, see
Illustration 3.9 :
Aux. temperature sensor (S aux.) (if applicable)
Compressor discharge temperature (Sd)
Ambient temperature (S amb.)
Compressor suction pressure (P0)
Compressor discharge pressure (Pc)
175ZB048.11
P_C
P_O
S_D
S_A
UX
S_A
MBIENT
Illustration 3.9 Sensor Connections
3.6.5 4-way Reversing Valve Connection
The relay for the 4-way reversing valve is connected as
shown and marked on the PCB, see
Illustration 3.10 .
Max. load:
250 V AC, 4 A
24 V DC, 4 A
See
3.6.10 Allocation of Connector Pins .
175ZB049.11
RL
Y_1
Illustration 3.10 4-way Reversing Valve Connection
3.6.6 Condenser Fan Motor Control
Connection (EXT_FAN)
Two different control signals are available, 0-10 V (max.
current 20 mA) analogue output and 24 V PWM duty cycle
with scalable frequency, see Modbus register description in
5 Commissioning . Connect the control signal of the
condenser fan (or any other external device like a
circulator pump) as shown and marked on the PCB, see
Illustration 3.11 .
175ZB051.11
EX
T_F
AN
Illustration 3.11 Condenser Fan Motor Control Connection (EXT-
Fan)
3.6.7 EEV Controller (HP Mode) Connection
(EEV_2)
Connect the EEV Controller as shown and marked on the
PBC, see
Illustration 3.12 .
175ZB099.11
EE
V_2
Illustration 3.12 EEV_2 Controller Connection
Electrical Installation
VLT
®
Inverter Scroll CDS 801 Operating Instructions
18 MG10V402 - VLT
®
is a registered Danfoss trademark
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