Parker Hannifin
Chapter 7 Troubleshooting 157
Troubleshooting Guidelines If your system is not functioning properly, try the following steps.
First Troubleshooting Steps (verify LEDs)
• Is the Right LED illuminated?
If not, look for problems with AC power. Check the AC power source.
Also check connections at the L1, L2, and terminals of the motor
mains connector, and at the C1 and C2 terminals of the control mains
connector).
• Is the Right LED illuminated red?
Try to enable the drive by connecting ±5–24 VDC to pin 1 (+), and
common (GND) to pin 21 (–) of the DRIVE I/O connector. The right LED
should turn green.
• Cycle power to the drive (this clears most faults). As the drive
powers up, watch the right LED.
Does the LED color change from off to red? Power is reaching the drive,
but the drive is not enabling.
Does the LED change from off to green? The drive is powered up and
enabled—power is not a problem.
• Remove all connections to the drive (DRIVE I/O, MOTOR, MOTOR
FEEDBACK, and R+/R–), leaving Mains power (L1, L2, and
terminals) connected. Apply power to the drive.
Does the Right LED change from off to red? Then a short exists in the
disconnected cables.
• Check Mains wiring and feedback connections.
If these steps do not solve your problem, follow the general troubleshooting
procedure outlined below.
General Troubleshooting Procedure
• Check the LEDs (see “LEDs⎯Drive Status Indicators” on page 158)
• Launch the Aries Support Tool
• Verify the RS-232/485 communications are functioning correctly.
• In the Aries Support Tool, look to the Status Panel to identify
problems with the drive.
• Check for non-Drive problems (problems with other parts of the
system)
Detailed procedures for each of these topics are given in the rest of this
chapter.