ABB ACH480 - Page 103

2)
Description
Terminal
1)
Connection
Digital inputs and auxiliary voltage output
×
Aux. voltage output +24 V DC, max. 250 mA
3)
+24V10
+24 V
DGND
DCOM
DI1
DI2
DI3
DI4
DI5
DI6
+24 V
DGND
DCOM
DI1
DI2
DI3
DI4
DI5
DI6
×Aux. voltage output commonDGND11
×Digital input common for allDCOM12
×Stop (0) / Start (1)DI113
×Not configuredDI214
Constant output frequency selection
4)
DI315
Start interlock 1 (1 = allow start)DI416
Not configuredDI517
Not configuredDI618
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
Electrical installation – North America 103