
29
EN
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Communication and control board (28) references
J10
J9
X1
J6
J1
J4
S2
S1
S3
J7
J8
J20
X2
J2
J3
1
1
8
2
3
4
1
4
1
8
7
8
2
1
46
36
35
34
33
44
42
28
40
41
38
39
37
45
Terminal name
Terminal reference
Description of communication and control board (28)
J2
33
Multifunction relay connector (ALARM terminal block)
S2
34
RS485 ABB service 120Ohm termination resistance selector switch (ABB service only)
S1
35
DRM0 activation switch
S3
36
RS485 line 120Ohm termination resistance selector switch
J4
37
ABB RS485 service RJ45 connector (service only)
J1
38
Remote ON/OFF terminal block
J3
39
RS485 line terminal block
J9
40
Ethernet connector 1 (RJ45)
J10
41
Ethernet connector 2 (RJ45)
J6
42
USB connector
X2
44
CR2032 Coin battery
J20
45
Memory board
J8
46
RS485 line communication board
(*) The RS-485 connector (RJ45) (ABB Service only)
(37)
and the signal R1 on the Remote ON/OFF terminal block
(38)
are used to
bring the signals on the external connector RS-485&Rem.ON/OFF (Service only)
(56)
.
Connections to the communication and control board
—
Connection of the communication and control signals
The communication and control signals are connected to the communication
and control board inside the DC wiring box. To reach the board, on the right side
of the DC wiring box, there are:
• 2x service opening (size 3/4" conduit)
(12)
• 2x service opening (size 1/2" conduit)
(13)
Use UL Listed reduction washers in case of smaller conduit used to maintain
Type 4 enclosure integrity.
13
12