No.DIG-31900-OM002
69
Troubleshooting, Error Code and Check Code
■
Troubleshooting
If the positioner malfunctions, take countermeasures in accordance with the troubleshooting
measures listed in Table 15.
Error
Possible cause
Countermeasure
Reference
page
No LCD display
- Input current is disconnected.
-Check that wires are connected to
the positioner.
15,16
-There is no output from the input
current power supply.
-Check the output current of the input
current generator.
15,16
-An out-of-range input current power
is being supplied.
-Apply the correct input current power.
5
-Others
-Contact SMC representatives
(To check boards and etc.).
-
No air is output from the
OUT1 or OUT2 ports.
(Does not move at all.)
-Supplied pressure is incorrect.
-Check the supply pressure setting
of the regulator.
5, 13,14
-No input current is being supplied.
-Apply the correct input current
(
4 to 20 mADC
)
.
15,16
-Air is leaking from the piping.
-Check the piping and fitting to stop
leaks.
66-
⑧
-Operation mode is different.
-Change the operation mode(auto,
manual mode).
27
-Fixed orifice and nozzle are
clogged.
-Inspect and clean the pilot valve.
9-Fig.3
66-
⑦
-Balance current is not adjusted.
-Adjust the balance current.
56
-Others
-Contact SMC representatives.
-
Low accuracy
(Linearity, hysteresis)
-Span adjustment has not been
performed.
-Perform the span adjustment.
57
-Dead band value is high.
-Change the dead band with the
parameter mode.
44,45
-Supply pressure is improper.
(Supply pressure is low)
-Check
the
regulator’s
supply
pressure setting, set the proper
pressure per actuator.
5
-Supply pressure is fluctuating.
-Check the regulator supply pressure.
-
-Positioner mounting threads have
loosened.
-Ensure that the positioner mounting
threads have not loosened.
10 to 12
-Positioner
and
actuator
are
improperly connected.
-Check the connection between the
positioner and actuator.
10 to 12
-Input current system is unstable.
-Adjust the input current system.
-Calibrate the input current with the
parameter mode.
26
-Others.
-Contact SMC representatives.
-
Table 15
Содержание IP8101 Series
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