ABB ACH480 - Page 75

2)
Description
Terminal
1)
Connection
Relay outputs
Aux. voltage output +24 V DC, max. 250 mA
3)
+24V10
RO2C
RO2A
RO2B
RO3C
RO3A
RO3B
RO1C
RO1A
RO1B
+24 V
DGND
DCOM
+24 V
DGND
DCOM
Aux. voltage output commonDGND11
Digital input common for allDCOM12
×Damper control
250 V AC / 30 V DC, 2 A
CommonRO1C19
×Norm. closedRO1A20
×Norm. openRO1B21
Running
250 V AC / 30 V DC, 2 A
CommonRO2C22
Norm. closedRO2A23
Norm. openRO2B24
Fault (-1)CommonRO3C25
250 V AC / 30 V DC, 2 A
Norm. closedRO3A26
Norm. openRO3B27
Embedded EIA-485
Embedded fieldbus (EIA-485)B+29
B+
A-
DGND
A-30
DGND31
Termination switch. ON = on. 1 = off.TERMS100
Safe torque off
×Safe torque off. Factory connection. Both cir-
cuits must be closed for the drive to start.
SGND34
OUT1
SGND
IN1
IN2
×IN135
×IN236
×OUT137
Auxiliary voltage input/output
Aux. voltage output +24 V DC, max. 250 mA
3)
+24V42
+24 V
DGND
DCOM
Aux. voltage output commonDGND43
Digital input common for allDCOM44
1)
Terminal size: 0.14 … 1.5 mm
2
(26 … 16 AWG) Tightening torque: 0.5 … 0.6 N·m (4.4 … 5.3 lbf·in)
2)
× = base unit, empty = RIIO-01 module
3)
The sum output current from 24 V terminals of base unit and RIIO-01 module must not exceed 250 mA.
Electrical installation – IEC 75