Denso RC8 User Manual

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4.2. Troubleshooting
4.2.1. If You Have a Problem with the Controller
When you contact us for a problem with the controller, please provide the following
information as exactly as possible.
Item Details
What has the problem?
Model of electric gripper
Number of electric gripper
When the problem occurred?
Date purchased
Service duration and operating condition
Why the problem occurred? Conditions where the problem occurred
What problem occurred? Detailed symptom of the problem
How often the problem occurred? Frequency of occurrence of the problem
4.2.2. Remedies and Preventive Measures
If you faced a problem while using the controller, solve the problem referring to the following
table. If you still cannot solve the problem after doing so, please contact a local dealer or us.
No.
Symptom
Possible cause
Items checked
Remedy
1
When turning on
controller provided
by customer, motor is
not excited or fingers
cannot return to their
original positions.
No power is supplied.
・
Check the POW LED on
front panel of electric gripper
control board.
・Check wiring of 24V power
supply.
・Check power pressure
using a tester.
・Remove the power
connector to measure
resistance between the
power terminals
・
Replace the electric gripper
control board if there is no
problem with the power supply.
・If resistance is immeasurable
between the power terminals,
fuse may be blown. Replace
electric gripper control board.
Alarm error may be
occurred.
When ALM (LED lamp) on
the electric gripper control
board is on,
Check the alarm details at the
robot controller error log.
2
When inputting
special instructions,
controller cannot
work.
Original position return
has not been completed.
Check operating conditions
in electric gripper screen
and command.
Check the RPRG signal is
asserted.
Perform original position return.
Point movement is not
feasible.
Check settings of point data.
Input correct point data.
3
Abnormal sound and
vibration are
generating.
Incorrect parameter
settings
Check actuator type, model,
and parameter data
displayed in electric gripper
screen.
Initialize parameters with electric
gripper screen.
Failure to tightly fix the
electric gripper
Fixing screws
Tighten screws for loose fixing
Problem with the guide
Check foreign objects exist
in the guide.
Check any damage or
deformation on the guide.
Replace guide.
Check to make sure that the
controller is not handled forcibly.
Electric gripper control
board failure
Try to use another electric
gripper control board.
If it properly worked, replace
electric gripper control board.

Denso RC8 Specifications

General

Communication Ports	Ethernet, USB, RS-232C
Weight	13 kg
Power Supply	AC 200-240V
Safety Features	Emergency stop
Safety Standards	ISO 10218-1