Danfoss Controller unit and expansion module Installation guide
Installation Guide
Danfoss
148H145_02-201
148H146_02-2018
Controller unit and
expansion module
148R9637
Controller
unit
8
1
Expansion
module
GD unit
GD unit
148R9637
GD unit GD unit
Up to 7 expansion modules per controller.
In total up to 96 sensors connected via Field bus
per controller - regardless of number of expansion
modules.
Controller unit
R
Segment 1
R = Resistor 560 Ohm
24 V DC for each address is needed
max. cable length: 900 m
R
Segment 2
R
max. cable length: 900 m
Expansion
module
R
Segment 3
max. cable length: 900 m
R
R
Segment 4
R
R
max. cable length: 900 m
Danfoss
2
© Danfoss | Climate Solutions | 2022.03
AN272543970480en-000201 | 1
Rela y
Service
24
AP 05 AP 06 AP 07 AP 08
Rela y
Rela y
Rela y
148H138_01-2018
Rela y
24
AP 01 AP 02 AP 03 AP 04
Rela y
Rela y
Rela y
148H144_02-2018
Rela y
Wiring configuration
X_Bus
X_Bus
AR 01
Fault
X2X1 X2
3152
0 VDC
Relay
28
511
39
612
D1 D2 D3 D4
D RF
AR 02
7
Digital output
AR 03
13410
AR 04
14
15
Danfoss
Controller unit
Power/
Main Bus
+-
Main Bus_A
Main Bus_B
4
3
1
2
X10
VDC
0 VDC
Main Bus_A
Main Bus_B
A
Output Main bus for PLC/PC etc.
Power Analog
< 24 VDC
1 2 3 4
X11
<
24 VDC
0 VDC
24 VDC
Output Field bus
0 VDC
0 VDC
Field Bus_A
B
Field Bus
Field Bus_A
1
X12
Field Bus_B
Field Bus_B
2
3
AI_01
4-20 mA
Analog
input
AI_02
46
24 VDC
output
AI_03
AI_04
AO_01
AO_02
578910 11 12
24 VDC
4-20 mA
24 VDC
4-20 mA
4-20 mA
Digital
input
DI_01
24 VDC
DI_02
DI_03
DI_04
3
VDC
0 VDC
Power/
X10
tool
Main Bus
+
1
-
Field Bus_A
3
2
Field Bus_A
B
Field bus
AR 05
X2X1 X2
28
511
39
612
AR 06
7
D1 D2 D3 D4
Digital output
AR 07
13410
AR 08
14
15
Danfoss
Expansion Module
Field Bus_B
4
Field Bus_B
Field Bus
0 VDC
< 24 VDC
1 2 3 4
X11
Power
24 VDC
0 VDC
<
0 VDC
24 VDC
C
Field bus
Analog
input
Analog
output
560 R
AI_01
AI_02
AI_03
AI_04
AO_03
AO_04
1
2
X12
Field Bus_A
Field Bus_B
46
3
24 VDC
4-20 mA
578910 11 12
24 VDC
24 VDC
4-20 mA
24 VDC
4-20 mA
4-20 mA
4
© Danfoss | Climate Solutions | 2022.03
AN272543970480en-000201 | 2
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