Parker
Hannifin
Troubleshooting Guidelines
The ACR90x0 Stand-Alone Controller design features easy connectivity,
auto-detect functions, and reliability. In addition, LEDs on the front panel of
the unit provide quick identification of power, axis, and CANopen status. If,
after following the installation guidelines in Chapter 3, your controller does
not function properly, use the guidelines and procedures in this chapter to
troubleshoot. These guidelines also apply to troubleshooting a malfunction
during normal operation of the controller.
First Troubleshooting Steps
The first step in troubleshooting is to check the power-status LED on the front
panel of the controller. It is next to the E
NABLE
connector on the ACR90x0
and is labeled P
OWER
(
OR
PWR
ON THE
ACR9040). Table 56 describes the
states of the power-status LED and troubleshooting actions.
Power-Status LED
What It Means
Off
No power
Verify that the power source meets the requirements in
Check for disconnected power cable, blown fuse, etc.
Green
Normal operation
Steady Red
Inadequate power
1. Verify that the power source meets the requirements in
Table 7 on page 26.
2. Remove all cables except power.
If the LED does not turn green, contact Parker Hannifin
Technical Assistance.
1
If the LED turns green after removing the cables, re-attach
the cables one at a time to determine which cable or
device is causing the problem.
Alternating Red/Green
Contact Parker Hannifin Technical Assistance.
1
1. For Parker Hannifin Technical Assistance contact information, see page 3.
Table 56 Power-Status LED
General Troubleshooting
Use the following list as a guideline for troubleshooting. The balance of this
chapter provides procedures for each of the guidelines in the list.
•
Check the status-indicator LEDs for power, axis interface, and
CANopen interface.
•
Launch the ACR-View.
•
Verify that RS-232/485 communications are functioning correctly.
•
In the ACR-View, look in the Status panel to identify problems.
•
Check for problems with system components other than the controller.
•
Check our website’s FAQs at
Chapter 4 Troubleshooting 97
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Summary of Contents for ACR9000
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