121
NTT 240/460
Drive status and diagnostics
Installation and user guide
Rev: 4.0
8.03 Diagnostics
Alarms (display view as “FA xx”) and warnings (display view as “F xx”) can be reset by related command, depending on
set operation mode (RESET digital input or RESET key in Caliper software or RESET command in fieldbus operation).
If logic supply is turned off, alarms/warnings will be reset.
To learn error-code details, use Caliper software and see ‘Advanced Setup - Alarm Memory’ section.
!
When an alarm occures, drive immediatly can stop providing current to motor or can perform the FAult
Reaction precedure; instead, in some warning situations, drive can hold motor control (this feature can be
set via Caliper software)
.
Alarms /warnings codes, descriptions and solutions are shown below:
ERROR
ID
DESCRIPTION
SOLUTION
RESET
FAULT
REACT.
EEPROM
CORRUPTED
DATA
FA01 An error occured while attempting
to read EEPROM memory data.
Drive stops providing current and
‘Drive OK’ condition is disabled.
This alarm code may result in EE-
PROM memory data loss.
It requires a default data upload and
then a new customer data upload,
with riserved data too.
NO
NO
CURRENT
SENSORS
FA02 An error occured while attempting
to read signals from inverter cur-
rent sensors.
Drive stops providing current and
‘Drive OK’ condition is disabled.
At least, one of inverter current sen-
sors has failed.
A repair from technical and designa-
ting person is required.
NO
NO
OVER
CURRENT
FA03 Drive has detected an overcurrent
condition in inverter current rea-
ding signals.
Drive stops providing current and
‘Drive OK’ condition is disabled.
Please remove U,V,W cable from dri-
ve wirings and try OPERATION ENA-
BLED status in this condition.
If alarms still occures, a repair from
technical and designating person is
required.
If alarm does not occure please en-
sure:
• any short-circuits between motor
phases or phase to Power Earth
may occur.
• that current loop gain coefficients
are correctly set.
YES
NO
OVER
VOLTAGE
FA04 Drive has detected an overvoltage
condition in DC bus voltage rea-
ding signals.
Drive stops providing current and
‘Drive OK’ condition is disabled.
Please ensure that power supply vol-
tage is within expected range.
If alarm occures during braking ope-
rations, try to connect an appropria-
te external braking resistor.
YES
NO
VOLTAGE
FAULT
FA05 Drive has detected supply voltage
fault or 2 phase lack for triphase
supply, at least.
Drive stops providing current and
‘Drive OK’ condition is disabled.
Disable alarm if drive is supplied by
DC voltage.
It’s possible to set:
• AUTO RESET when 2 phases are
present at least (only with FA06
disabled).
• RESET signal request.
YES
YES
PHASE
FAULT
FA06 Drive has detected voltage fault
for 1 phase of triphase supply.
Drive stops providing current and
‘Drive OK’ condition is disabled.
Please, verify if power cables are OK
or if input power supply fuses are OK.
YES
YES
Содержание NTT 240
Страница 129: ......