ABB ACH580-31, Руководство по оборудованию

Страница: 139 / 284

Connected with jumpers at the factory. 4)
Use shielded twisted-pair cables for digital signals. 5)
Ground the outer shield of the cable 360° under the grounding clamp on the grounding
shelf, and the pair-cable shields and grounding wire at the grounding terminal (SCR)
of the control unit. 6)
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.
7)
￭
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
Control unit 139