PROGRAMMING
GUIDE
SOLARDRIVE
PLUS
95
/
107
A047
Undervoltage
Description
DC bus voltage lower than Vdc_min
Event
Voltage measured in DC bus (DC-link) capacitors has exceeded the minimum allowable value
for proper operation of the drive class being used.
Possible cause
•
Check that voltage has not dropped below 400 Vac.
•
This alarm may trip even when grid voltage temporarily drops below this threshold (e.g. direct
load input).
•
If the drive is powered directly by the bus bar, the bus feeder is responsible for the alarm trip.
•
Failure in DC bus voltage measurement circuit.
Solution
1. Check voltage in terminals
R
,
S
,
T
. V Check mains voltage value
M030
and DC bus voltage
value
M029
. Also check the values of
M030
and
M029
sampled in the FAULT LIST when
the alarm tripped.
2. If the alarm persists, please contact ENERTRONICA SANTERNO
’s Customer Service.
A048
Overvoltage
Description
Overvoltage in DC bus (voltage in DC-link).
Event
Voltage measured in DC bus (DC-link) capacitors has exceeded the maximum allowable value
for proper operation of the drive class being used.
Possible cause
•
Check that voltage does not exceed 1198 Vdc.
•
Very inertial loads and a too short deceleration ramp (see section 2.6.1).
•
Alarm
A048
can trip even when the motor is pulled by the load (eccentric load).
•
If the drive is powered directly by the bus bar, the bus feeder is responsible for the alarm trip.
•
Failure in DC bus voltage measurement circuit.
Solution
1. Check voltage in terminals
R
,
S
,
T
. Check mains voltage value M030 and DC bus voltage
value M029. Also check the values of M030 and M029 sampled in the FAULT LIST when
the alarm tripped.
2. In case of very inertial loads and if the alarm tripped when decelerating, try to set a longer
deceleration ramp. If short stop times are needed or if the motor is pulled by the load,
activate the resistive braking unit.
3. If the alarm persists, please contact ENERTRONICA SANTERNO
’s Customer Service.
A050
IGBT Fault A
Description
Hardware fault from IGBT converter, side A, or brake overcurrent
Event
The IGBT drivers of power converter A have detected IGBT failure or overcurrent conditions in
the brake circuit (models S14, S22, S32 5T/6T only)
Possible cause
•
Strong electromagnetic disturbance or radiated interference.
•
Overcurrent, Overtemperature, IGBTs, IGBT fault.
•
Unsuitable braking resistor (models S14, S22, S32 5T/6T only).
Solution
1. Reset the alarm: send a RESET command.
2. If the alarm persists, please contact ENERTRONICA SANTERNO
’s Customer Service.
