Troubleshooting, Error Code And Check Code; Troubleshooting - SMC Networks IP8001 Series Operation Manual

Troubleshooting, Error Code and Check Code

■Troubleshooting

If the positioner malfunctions, take countermeasures in accordance with the troubleshooting
measures listed in Table 16.
Error
No LCD display
No air is output from the
OUT1 or OUT2 ports.
(Does not move at all.)
Low accuracy
(Linearity, hysteresis)
Table 16
Possible cause
- Input current is disconnected.
-There is no output from the input
current power supply.
-An out-of-range input current power
is being supplied.
-Others
-Supplied pressure is incorrect.
-No input current is being supplied.
-Air is leaking from the piping.
-Operation mode is different.
-Fixed orifice and nozzle
clogged.
-Balance current is not adjusted.
-Others
-Span adjustment has not been
performed.
-Dead band value is high.
-Supply pressure is improper.
(Supply pressure is low)
-Supply pressure is fluctuating.
-Positioner mounting threads have
loosened.
-Positioner and actuator
improperly connected.
-Input current system is unstable.
-Others.
Countermeasure
-Check that wires are connected to
the positioner.
-Check the output current of the input
current generator.
-Apply the correct input current power.
-Contact SMC representatives
(To check boards and etc.).
-Check the supply pressure setting
of the regulator.
-Apply the correct input current
（4 to 20 mADC）.
-Check the piping and fitting to stop
leaks.
-Change the operation mode(auto,
manual mode).
are -Inspect and clean the pilot valve.
-Adjust the balance current.
-Contact SMC representatives.
-Perform the span adjustment.
-Change the dead band with the
parameter mode.
-Check the
pressure setting, set the proper
pressure per actuator.
-Check the regulator supply pressure.
-Ensure that the positioner mounting
threads have not loosened.
are -Check the connection between the
positioner and actuator.
-Adjust the input current system.
-Calibrate the input current with the
parameter mode.
-Contact SMC representatives.
78
Reference
page
14,15
14,15
5, 12, 13
14,15
75-⑧
27
9-Fig.3
75-⑦
64
65
50
regulator's
supply
10, 11
10, 11
26
No.IP8S-OM00009
5
-
-
5
-
-