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- 75 –
No.JXC
※
-OMY0002
Trouble
No.
Trouble
Possible
cause
How to diagnose the trouble
Solutions
4
Move
occasionally.
Voltage drop
Check if there has been any
temporary voltage drop in the
power supply.
(If there is a temporary voltage
drop in the power supply, the
EMG terminal of PWR power
connector will turn OFF so the
electric actuator will stop.
However, this stop will be
released when the voltage
recovers.)
There is a possibility of a momentary
voltage drop because the capacity of the
power supply is insufficient, or the power
supply has inrush current restraining
specification.
→
3. Product Specifications P.16
Inappropriate
specifications
Check that the combination of
the electric actuator and
controller is correct?
If the blank controller is used,
check that the written data is
identical with the actuator used.
Check if the product number of the used
electric actuator matches with the electric
actuator which is applicable to the
controller.
→
3. Product Specifications P.16
If the blank controller is used, write the
data, which is identical with the product
number of the actuator used.
Influence of a
magnetic
force
Check if there is equipment
which generates the magnetic
force, such as a magnet or
electro-magnetic coil around the
actuator.
The equipment, which generates the
magnetic force, should be kept away
from the motor.
For example, keep 40 mm minimum
distance from the cylinder with auto
switch.
Signal timing
Check the timing of the signal
from the PLC to the controller.
Both PLC processing delay and
controller scan delay are generated.
Ensure that 2 times or more of the
communication cycle time should be
maintained between the input signals.
→
8.4 Controller input signal response
time P.46
SVON time
Check if the electric actuator is
operated when the SVRE output
is turned on after the SVON
input is turned on.
When power is applied, it may take up to
10 seconds (max. 20 sec.) from SVON
input to SVRE output depending on the
electric actuator position. Command
operation after SVRE output is turned
ON.
Alarm
condition
Is controller alarm generated?
Refer to the controller operation manual,
and take appropriate measures. Take
appropriate measures based on the
operation manual.
→
11. Alarm Detection P.54