ABB ACS350 Series, User Manual

Page: 90 / 314

Application macros
90
Motor Potentiometer macro
This macro provides a cost-effective interface for PLCs that vary the speed of the
drive using only digital signals. To enable the macro, set the value of parameter
9902
to 4 (MOTOR POT).
For the parameter default values, see section Default values with different macros
on page 142 . If you use other than the default connections presented below, see
section I/O terminals on page 40 .
Default I/O connections
max. 500 ohm
X1A
1
SCR Signal cable shield (screen)
2 AI1 Not in use by default: 0…10 V
3 GND Analog input circuit common
4 +10V Reference voltage: +10 VDC, max. 10 mA
5 AI2 Not in use by default. 0…10 V
6 GND Analog input circuit common
7 AO Motor speed value : 0…20 mA
8 GND Analog output circuit common
9 +24V Auxiliary voltage output: +24 VDC, max. 200 mA
10 GND Auxiliary voltage output common
11 DCOM Digital input common
12 DI1 Stop (0) / Start (1)
13 DI2 Forward (0) / Reverse (1)
14 DI3 Speed reference up
1)
15 DI4 Speed reference down
1)
16 DI5 Constant speed 1 : parameter 1202
X1B
17
ROCOM Relay output
No fault [Fault (-1)]
18 RONC
19 RONO
20 DOSRC Digital output, max. 100 mA
No fault [Fault (-1)]
21 DOOUT
22 DOGND
2)
1)
If DI3 and DI4 are both active or inactive, the
speed reference is unchanged.
The existing speed reference is stored during
stop and power down.
2)
360 degree grounding under a clamp.
Tightening torque = 0.5 N·m / 4.4 lbf. in.