Endress+Hauser Proservo NMS5 Operating Instructions Manual page 83

Proservo NMS5
Message
OVERTENSION The tension on the measuring wire
exceeds the upper limit set at
position GVH=162 "OVER TENS.
SET."
POWER FAILURE The supply voltage falls below the
allowed value.
RAM FAILURE CPU RAM failure
ROM ERROR EEPROM
SIFA ERROR Error between communication board
and CPU board for digital output.
TEMP BELOW Indicates the measured temperature
RANGE data is below the fixed range of the
NMT temperature sensor.
TEMP COM OPEN Indicates an open common line in the
NMT temperature sensor
TEMP COM SHORT Indicates a shorted common line in
the NMT temperature sensor
TEMP OVER RANGE Indicates the measured temperature
data is highter than the fixed range of
the NMT temperature sensor.
UNDERTENSION The tension on the measuring wire
falls below the lower limit set at
position GVH=163 "UNDER TENS.
SET."
WIRE CALIB ERROR The deviation of automatic wire
calibration exceeds its set limit.
Z PHASE NO INPUT The input of the Z phase signal from
the encoder is not available.
MPU:XXXX* CPU error
(XXXX=text)
OPE.CODE ERROR An illegal operation command is
accessed.
LCD CHECK Error between LCD (touch control)
unit and CPU boaed for digital
output.
GAUGE TEMP. The temperature inside the gauge
exceeds the limit.
DRIVER ERROR A motor driver error has occurred
Endress+Hauser
Cause
Note!
These error histories are available (Erroneous Message) at position GVH=037.
Remedy
Check if the displacer motion is blocked by clogging or
sticking.
To release overtensioning, access position GVH=371
"RELE. OVER TENS."
Check the power source.
Consult E+H Service.
Replace the CPU board. Consult E+H service.
Check if the measuring wire is cut or the displacer is lost.
In this case, check the installation of the NMS5.
Check wire and wire drum.
Replace the detector unit. Consult E+H
Service.
The error might happen occasionally and might be regis-
tered in GVH=037 (Erroneous Message).
However, it is normally negligible. If it occurs frequently,
then consult E+H Service.
If the message occurs frequently, then consult E+H Ser-
vice.
Replace the touch control.
Check if the ambient temperature stays within the limit.
If the application is a high temperature tank, then take
meadures to avoid heat tranfer from the tank to NMS5.
Consult E+H Service
10 Diagnosis and Troubleshooting
Error Code
101
124
132
114
102
115
106, 112
121
83