ACS550-02/U2 User’s Manual 105
Application macros
Motor Potentiometer macro
This macro provides a cost-effective interface for PLCs that vary the speed of the
motor using only digital signals. To enable, set the value of parameter 9902 to
4(
MOTOR POT).
Connection example:
Input signals Output signals Jumper setting
• Start, stop and direction (DI1,2)
• Reference up/down (DI3,4)
• Constant speed selection (DI5)
• Run enable (DI6)
• Analog output AO1: Speed
• Analog output AO2: Current
• Relay output 1: Ready
• Relay output 2: Running
• Relay output 3: Fault (-1)
or
1SCR
2AI1
3AGND
410V
5AI2
6AGND
7AO1
8AO2
9AGND
10 24V
11 GND
12 DCOM
13 DI1
14 DI2
15 DI3
16 DI4
17 DI5
18 DI6
19 RO1C
20 RO1A
21 RO1B
22 RO2C
23 RO2A
24 RO2B
25 RO3C
26 RO3A
27 RO3B
Not used
Reference voltage 10 V DC
Motor output speed: 0
…20 mA
Reference up: Activation increases the reference
1
Reference down: Activation decreases the reference
1
Relay output 1, programmable
Default operation:
Relay output 2, programmable
Default operation:
Relay output 3, programmable
Default operation:
Output current: 0…20 mA
Ready =>19 connected
to 21
Running =>22 connected to 24
Fault (-1) =>25 connected to 27
Analog input circuit common
Not used
Analog output circuit common
Auxiliary voltage output +24 V DC
Auxiliary voltage output common
Digital input common for all
Signal cable shield (screen)
Analog input circuit common
Note 1. For DI3 and DI4:
• If both are active or inactive the
speed reference is unchanged.
• The existing speed reference is
stored during stop or power down.
Note 2.
• Settings of the ramp times with
acceleration and deceleration time
2 (parameters 2205 and 2206).
Start/stop: Activation starts the drive.
Forward/reverse: Activation reverses rotation direction.
Constant speed 1: 1202
Run enable: Deactivation always stops the drive.
(Fault => 25 connected to 26)
X1
J1
AI1: 0
…10 V
AI2: 0(4)
…20 mA
ON
ON
AI1: 0…10 V
AI2: 0(4)
…20 mA
ON
12
J1
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