ABB ACS800 Hardware Manual page 36

36
The default cable connections to the RMIO board of the DSU are shown below.
Terminal block size:
2
cables 0.3 to 3.3 mm (22 to 12 AWG)
Tightening torque:
0.2 to 0.4 Nm (2 to 4 lbf in.)
* Three-position operating
1 3
switch
2 4
0
1
START
1)
Non-programmable I/O
2)
External alarm/fault indication via
digital input DI4: See parameter 30.04
DI4 EXT EVENT.
3)
External alarm/fault indication via
digital input DI5: See parameter 30.05
DI5 EXT EVENT.
4)
Acknowledgement from the main
breaker (if in use). If there is no main
breaker but the module-in-built
contactors are in use, the contactors
are monitored by the CMIB board.
24 V DC / 115 V AC / 230 V AC
Hardware description
*
Contactor or breaker on/off
X20
1 VREF- Reference voltage -10 VDC,
1 kohm < R
2 GND
X21
1 VREF+ Reference voltage 10 VDC,
1 kohm < R
2 GND
3 AI1+ By default, not in use. 0(2) ...10 V,
R > 200 kohm
4 AI1-
in
5 AI2+ By default, not in use. 0(4) ...20 mA,
R = 100 ohm
6 AI2-
in
7 AI3+ By default, not in use. 0(4) ...20 mA,
R = 100 ohm
8 AI3-
in
9 AO1+ By default, not in use. 0(4) ... 20 mA,
R < 700 ohm
10 AO1-
L
11 AO2+ By default, not in use. 0(4) ...20 mA,
R < 700 ohm
12 AO2-
L
X22
1 DI1 Overtemperature supervision
2 DI2 On / Off
3 DI3 Start (
4 DI4 By default, not in use.
5 DI5 Fault (0)
1)
6 DI6 Reset
7 +24V +24 VDC max. 100 mA
8 +24V
9 DGND Digital ground
10 DGND Digital ground
11 DI7(DIIL) By default, not in use.
X23
1 +24V Auxiliary voltage output, non-isolated,
24 VDC 250 mA
2 GND
X25
1 RO11 Relay output 1: Running
2 RO12
3 RO13
X26
1 RO21
2 RO22
3 RO23
X27
1 RO31 Relay output 3: Main contactor/
breaker control
2 RO32
3 RO33
< 10 kohm
L
< 10 kohm
L
1)
1)
1)
rising edge start)
2)
3)
4)
Relay output 2: Fault (-1)
1)