ABB ACH550-UH User Manual page 388

2-42
Recommended control wiring between ACH550 and E-Clipse Bypass to enable Advanced Override 2.
Required for E-Clipse parameter 1708 selections [2] VFD and [3] VFD/BYPASS.
Bypass functions overview
AI1 Switch AI1 in the OFF position.
AI2 Switch AI2 in the ON position.
X1
1 SCR Signal Cable Shield (screen)
Analog Input AI1
2 AI1
3 AGND Analog Input Circuit Common
4 +10V Reference Voltage 10 V DC
5 AI2 Analog Input AI2: FEEDBACK
6 AGND Analog Input Circuit Common
7 AO1 Analog Output AO1
8 AO2 Analog Output
9 AGND Analog Output Circuit Common
10 +24V Auxiliary Voltage Output +24 V DC
11 GND Auxiliary Voltage Output Common
12 DCOM Digital Input Common for All
13 DI1
14 DI2
15 DI3
16 DI4 (P 1608: START ENABLE 1: [4] DI4)
17 DI5 (P 1701: OVERRIDE SEL: [5] DI5)
18 DI6
19 RO1C
20 RO1A
21 RO1B
22 RO2C
23 RO2A
24 RO2B
25 RO3C
26 RO3A
27 RO3B
ABB ACH550
X2
1 +24V Auxiliary voltage output +24 V DC
2 +24V Auxiliary voltage output +24 V DC
3 DCOM Digital input common for all
4 GND Auxiliary voltage common
5 DI1
6 DI2
7 DI3
8 DI4
9 DI5
10 DI6
11 RO1C
12 RO1A
13 RO1B
14 RO2C
15 RO2A
16 RO2B
17 RO3C
18 RO3A
19 RO3B
20 RO4C
(P 1410: R04 SELECT: [12] OVERRIDE)
21 RO4A
22 RO4B
23 RO5C
(P 1413: RO5 SELECT: [32] OVRD2 ENAB)
24 RO5A
25 RO5B
ABB E-Clipse Bypass
ACH550 E-Clipse Bypass User's Manual