
Tolomatic Hardware & Installation Guide:
ACS Drive/Controller
• 10-1 •
Troubleshooting
10
10.1 troubleshooting
10.1.1 troubleshooting the ACS drive
troubleshooting table
SyMPtOM / tROUBlE
POSSIBlE CAUSE / RESOlUtIOn
No communication to drive
1. Check power connection.
2. Verify the wiring of the communication cable.
3. Verify baud rate and serial port number.
4. Verify that the communication cable is plugged in
securely.
5. Verify that all drivers are up-to-date.
6. Try a different computer.
Actuator cannot move load
1. The load is too large.
2. There is too much friction.
3. Side load is excessive.
4. Power supply does not have enough current capability.
5. Current limits are set too low.
Drive is overheating
1. Ambient temperature is too high.
2. Cooling is insufficient.
Actuator is operating erratically
1. Current is set to low.
2. Following error is set too low.
3. Determine if power supply has enough current.
4. Check to see if any faults are being generated.
5. Verify that the drive has been configured properly for
the actuator.
No response from drive in I/O
mode
1. Verify the enable signal is on.
2. Verify that all of the I/O are configured properly.
3. Verify wiring to the actuator and drive.
Red and Green LEDs on, both
solid and no communication
1. Verify serial programming cable and cycle power to
drive.
2. Verify that the RJ12 cable is a reversed type.
3. Verify all connections are plugged in securely.
No EtherNet Communication
1. Check EtherNet cables.
2. Verify EtherNet cable is plugged in securely.
3. Incorrect combination of IP address, subnet mask &
gateway. Check with your network administrator.
Table 10-1: Troubleshooting Descriptions