Frenic 5000VG7S Series, Инструкция по эксплуатации

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6-2
6-2
Function Description Display
Related
function
code
Inter-inverter
communication
error Activated when a communication error occurs in an inter-inverter
communication using the high-speed serial cards (optional).
erb
IPM error Activated when the self cut-off function of the IPM operates due to an
overcurrent or overheat.
1pe
Input phase
loss The inverter is protected from being damaged due to input phase loss.
lin
Undervoltage Activated if the DC link circuit voltage decreases to the undervoltage level due
to a reduction in the supply voltage. The alarm output is not issued when the
DC link circuit voltage decreases and the function code F14 is set to "3 to 5".
n
Undervoltage detection level:
200V series: 186Vdc, 400V series: 371Vdc.
lu
F14
NTC thermistor
disconnection Activated if the thermistor circuit is disconnected when the application of NTC
thermistors to corresponding motors (M1, 2, 3) is specified with the function
codes P30, A31 and A47.
nrb
P30,A31
A47
Overcurrent Activated if the momentary value of the inverter output current exceeds the
overcurrent detection level due to a short-circuit or ground fault.
Inverters with a capacity of 15 kW use an IPM (Intelligent Power Module). This
protection function is activated when an alarm (such as overcurrent) is detected
on the IPM.
0c
Overheating at
heat sink Activated if the temperature of the heat sink to cool the rectifier diodes and the
IGBTs increases due to cooling fan stoppage.
0h1
External alarm The inverter stops on receiving the external alarm signal (THR).
It is activated by a terminal signal when the control circuit terminals (THR
assignment) are connected to alarm terminals of external devices such as a
braking unit or a braking resistor.
0h2
E01 - E04
Inverter internal
overheat Activated if the ambient temperature of the control PC board increases due to
poor ventilation of the inverter.
0h3
Motor overheat Activated if the temperature detected by the NTC thermistor built in the VG7
dedicated motor exceeds the data of the function code E30 "Motor overheat
protection".
0h4
E30,E31
Motor 1
overload Activated when the motor 1 current (inverter output current) exceeds the
operation level set by function code F11.
0l1
F11
Motor 2
overload Activated when the motor 2 current (inverter output current) exceeds the
operation level set by function code A33.
0l2
A33
Motor 3
overload Activated when the motor 3 current (inverter output current) exceeds the
operation level set by function code A49.
0l3
A49
Inverter unit
overload Activated if the output current exceeds the overload characteristic of the
inverse time characteristic.
0lu
Overspeed Activated if the motor speed (detected speed value/predicted speed value)
exceeds 120% of the specified value by the function code "maximum speed".
0s
F03,A06
A40
Overvoltage Activated if the DC link circuit voltage exceeds the overvoltage level due to an
increase of supply voltage or regenerative braking current from the motor.
However, the inverter cannot be protected from excessive voltage (high
voltage, for example) supplied by mistake.
n Overvoltage detection level
200V series: 400Vdc, 400V series: 800Vdc
0u
PG error Activated when the pulse generator terminal PA/PB circuits are disconnected.
It is not activated when the sensorless control or the V/f control is selected.
p9
Charging circuit
error Activated if the bypass circuit of the DC link circuit is not formed (the magnetic
contactor for the charging circuit bypass is not closed) two minutes after power
is supplied.
pbf
Note 1:
All protective functions are reset automatically if the control power voltage decreases to where
maintaining the operation of the inverter control circuit is impossible.
Note 2:
Fault history data is stored for the last ten trips.
Note 3:
Stoppage due to a protective function can be reset by the RST key of the KEYPAD or turning OFF and
then ON between the X terminal (RST assigning) and the CM. Note that this action is invalid if the
cause of an alarm is not found and resolved.
Note 4:
In addition to these protective functions, there can be further protective from surge voltage by
connecting surge suppressors to the main circuit power terminals (L1/R, L2/S, L3/T) and the auxiliary
control power terminals (R0, T0).