ACTUS 720-0108 Temel Kurulum - Sayfa 4

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720 SERIES ACTUATOR – TROUBLESHOOTING GUIDE

In the event of failure or improper operation, please follow the steps outlined

below.

System Check

Double check all wiring. Make sure you are using the Actus wiring

diagram drawing number 999-0172. Proper wiring technique is critical.

90% of all field problems can be traced to a poor connection or improper

wiring. Please check the following areas:

a. All wires and cables should be tied down and positioned so they can

not be accidentally pulled or knocked loose. All wiring subject to high

temperature or vibration should be run through a loom to protect it

from shorting to the vehicle frames.

b. Double check all ground wires as shown on the wiring diagram. All

frame grounds should be free of corrosion, paint, and dirt. Wires

shown running directly to the negative post of the battery should be

attached to a similar good direct ground. Frame grounding is not

recommended for these wires. Note that this actuator is grounded

with terminal #3. Terminals #4 and #5 provide bidirectional motor

control. Improper ground will make the limit switches fail to operate

properly.

c. This is a negative ground, 12 or 24 VDC system. Be sure correct

power is applied and regulated.

d. Check system fuse/circuit breaker for proper indication.

e. Certain motor speeds require different wiring. Check the truth table

on the wiring diagram.

Check the actuator mounting position. The actuator should move the

device freely without binding. Temporarily disconnect linkage to remove

any load from actuator.

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