SMC Networks JXCEH Operation Manual page 80

Incorrect
wiring
Electric
noise
Incorrect
parameters
Voltage
drop
Failure of
pushing
operation.
Operation stops
7
intermittently
Unsuitable
spec.
Signal
timing
SVON time
Alarm
condition
Is the wiring connected
correctly?
Refer to the controller operation
manual to confirm wiring, and
check for broken wires and
short-circuits.
Connect to Ground correctly.
Avoid bundling the cables.
Check that the parameter
values are correct.
Also, check the cables are not
bundled.
Check for a temporary voltage
drop in the power supply?
(If there is a temporary voltage
drop in the power supply, the
"EMG" signal from the PWR
connector will turn OFF so the
actuator will stop. However, this
stop will be released when the
voltage recovers.)
Check that "INP" turns ON
during a pushing operation.
(If completion of the pushing
operation is detected by "INP",
the PLC cannot confirm
completion)
Check if the controller's
specifications are appropriate,
the power supply is suitable and
the controller is compatible with
the actuator.
Check the timing of the signal
from the PLC to the controller.
Check if the electric actuator is
operated when the SVRE output
is turned on after the SVON input
is turned on.
Is controller alarm generated?
-79-
Correct the wiring so that the
input/output of each signal is performed
appropriately.
→ 5. External Connections (P.20)
→ 9.1 Memory allocation (P.29)
Refer to the controller operation manual
and take appropriate measures.
→ 3.4 Mounting (P.17)
Take appropriate measures according
to this manual.
→ 10. Settings and Data Entry (P.38)
There is a possibility of a momentary
voltage drop because the capacity of
the power supply is insufficient, or if the
power supply is "inrush-current control"
type.
If necessary, replace the power supply.
→ 3. Specifications (P.13)
Check "INP" signal before the energy
saving mode is turned ON.
→ 9.1 Memory allocation (P.29)
Take appropriate measures according
to this manual.
→ 3. Specifications (P.13)
Set the interval time between signals to
more than twice the communication
cycle time, when the signals are to be
continuously input, because PLC
processing delays and controller
scanning delays can occur.
→ 11.4 Controller input signal
response time (P.46)
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 an
operation after SVRE output is turned
ON.
Refer to the controller operation manual,
and take appropriate measures based
on the operation manual.
→ 15. Alarm for Motor Control (P.60).
No. JXC※-OMY0008