GMV NGV A3 - 7 FAULTS; 7.1 FAULTS ANALYSIS

NGV A3 VALVE
INSTALLATION, USE AND MAINTENANCE
ENG
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10991483 EN - 1.10 26.05.2023
7 FAULTS
7.1 FAULTS ANALYSIS
Fault
Possible cause
Possible solution
01: SUPPLY LOW
Low power supply
Increase power voltage by adjustment or
replace power supply
02: SUPPLY HIGH
High power supply
Decrease power voltage by adjustment
or replace power supply
03: PRESS. FAULT
Pressure transducer PT failure
Replace transducer PT
04: TEMP. FAULT
Temperature transducer TT failure
Replace transducer TT
05: STEP MOTOR
Stepping motor (SM) overheated
Wait for motor cooling.
If the problem recurs after a short time,
replace stepping motor.
06: S1 VRP OPEN
Contact S1 (VRP) open with lift stopped
See 13-22
07: S1 VRP OPEN
Contact S1 (VRP) open at the end of a
downward travel
See 13-22
08: VS-VD INPUT
Signals VS and D contemporaneous
Verify that the control panel sends
signals correctly
09: PRESS. MAX
Maximum pressure > 5.10 PSTAT MAX
Verify that the parameter is equal to the
system value. If it is not equal, set
parameter equal to the system, if equal
to find the cause of overpressure.
10: PRESS. MIN
Minimum pressure < 5.7 PSTAT MIN
Find and correct the cause that does not
allow to the pressure to reach the
minimum value required.
11: OIL TEMP LOW
Minimum oil temperature < 5°C
Verify that the sensor works correctly or
install an oil heater.
12: OIL TEMP HI
Maximum oil temperature > 5.11 COOL
TEMP
If the parameter 5.11 COOL TEMP is <
70°C set the value up to 70°C
If the parameter 5.11 COOL TEMP is
= 70°C probably you must install an
heat exchanger
13: S3 CLOSED
Contact S3 (VBO) closed with lift stopped
Verify that the sensor works correctly
placing a magnet near to its white side.
If the led does not change status (Led
not turn on if it is in off status or led not
turn off if it is in on status) the sensor is
broken and you must replace it.
If the led changes status (Led turn on if
it is in off status or led turn off if it is in
on status) the sensor works correctly.
You should try to move the sensor to the
correct position. (see 6.5). If the problem
persists on the sensor S1 probably the
VRP does not work correctly (verify
and/or contact support). If the problem
persists on the sensors S2 e S31
probably the stepping motor does not
work correctly (verify and eventually
replace) or not work correctly the VB
(verify and/or contact support)
14: S2 OPENED
Contact S2 (VBC) opened with lift
stopped
15: S1 NOT OPEND
Contact S1 (VRP) did not opened during
starting downward travel
16: S1 NOT CLOSD
Contact S1 (VRP) did not closed during
end of downward travel
17: S2 NOT CLOSD
Contact S2 (VBC) did not closed during
end of downward travel
18: S3 NOT CLOSD
Contact S3 (VBO) did not closed when
VB opens
19: S2 NOT OPEND
Contact S2 (VBC) did not opened when
VB opens
20: S1 ALRDY OPN
Contact S1 (VRP) open before starting
upward travel
21: S1 NOT OPEND
Contact S1 (VRP) did not opened during
starting or in high speed
22: S1 NOT CLOSD
Contact S1 (VRP) did not closed during
end of upward travel
23: PARAMS ERROR
Wrong parameters map for this SW
release. Shown when [191] ≠ “xxx”
(numeric value)
Contact GMV support. It may be
necessary to replace the electronic
card with a right one or, in case of
wrong parameters map, it is
necessary to use the PT01
programmer to set the right value for
the card in use.
24: CAN BUS ERROR
A NGV-A3-03 electronic card is in use
without an active serial connection to the
control panel
Contact GMV support. You experience
this issue for a wrong serial connection
between the electronic card and the
control panel or by using a standard
electronic card instead of a reduced
(serial) one.