ABB ACS580-04, Hardware Manual

Page: 139 / 298

Connected with jumpers at the factory. 6)
Use shielded twisted-pair cables for digital signals. 7)
Ground the outer shield of the cables 360° at the cabinet entry. 8)
WARNING! Connect an external AC power supply (24 V AC) only to control unit connectors
40 and 41. If you connect it to connector AGND, DGND or SGND, damage to the power supply
or control unit can occur.
9)
￭
Switches
Position Description Switch
Bus not terminated (default)
TERM
ON
EFB link termination. Must be set
to the terminated (ON) position
when the drive (or another
device) is the first or last unit on
the link. TERM
S4
Bus terminated
TERM
ON
Bias off (default)
BIAS
ON
Switches on the biasing voltages
to the bus. One (and only one)
device, preferably at the end of
the bus must have the bias on. BIAS
S5
Bias on
BIAS
ON
Additional information on I/O connections
￭
PNP configuration for digital inputs (X2 & X3)
Internal and ex24 V power supply connections for PNP configuration are shown
in the figure below.
Ex24 V power supply
PNP connection (source)
X2 & X3
10 +24V
11 DGND
12 DCOM
13 DI1
14 DI2
15 DI3
16 DI4
17 DI5
18 DI6
+24 V DC
0 V DC
In24 V power supply
PNP connection (source)
X2 & X3
10 +24V
11 DGND
12 DCOM
13 DI1
14 DI2
15 DI3
16 DI4
17 DI5
18 DI6
WARNING!
Do not connect the +24 V AC cable to the control unit ground when the control
unit is powered from an external 24 V AC supply.
Control unit 139