ABB ACS55, User Manual

Page: 18 / 270

18 EN
Connecting control wires
Internal (1) or external (2) power supply can be used for the digital
inputs. Analogue control voltage is 0…10 VDC as default. (The AI
jumper must be in voltage ("U") position).
Control terminals
Use multi-strand 0.5...1.5 mm
2
wire (AWG22 - AWG16).
1) Connected internally to frame (earth) through 1 Mohm resistor.
2) Digital input impedance is 1.5 kohm.
Using 0/4…20 mA current signal:
- Change AI jumper to current
("I") position.
- Set AI OFFSET switch to ON
position if 4…20 mA current
signal is desired.
SCR ST
AR
T
REV JOG
+ -
2)
1)
U
I
12...24 VDC supply
+12V COM SPEED/AI +10V COM
SCR ST
AR
T
REV JOG +12V COM SPEED/AI +10V COM
AI
U
I
AI
SCR
START
REV
JOG
+12V
COM
SPEED/AI
+10V
COM
+
-
1...10 kohm
# Name Description
1 COM Common for digital or analogue inputs
1)
2 COM Common for digital or analogue input
1)
3 AI Analogue input: Speed (frequency) reference.
0/2…10 VDC (Ri=190 kohm), or 0/4…20 mA
(Ri=100 ohm). Resolution 0.1%, ac/-1%.
4 +10V Reference voltage for analogue input.
Ac/-2%. Max. 10 mA.
5 +12V Auxiliary voltage for digital inputs. Max. 30 mA.
6 START Digital input 1: Start (resets the drive after a fault
trip)
2)
7 REV Digital input 2: Reverse rotation direction
2)
8 JOG Digital input 3: Activate jog speed
2)
9 SCR Earth for signal cable screen. Connected internally
to frame earth.
Relay output
1 RO1 Fault: Relay opens.12 V...250 VAC / 30 VDC
10 mA...2 A
2 RO2