Watt Drive V3000-015LF, Руководство пользователя

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Explanation of Function
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4.4 Protection function list
4.4.1 Protection function
Name Description
Display of
digital
panel
e
digital
operator
Display of remote
operator/
Copy unit
ERR1 ***
At constant
Speed
OC. Drive
On deceleration
speed
OC. Decel
On acceleration
speed
OC. Accel
Over-current protection
Motor is restricted and decelerates
rapidly, excessive current is drawn
through the inverter and there is a risk of
damage. Current protection circuit
operates and the inverter output is
switched off.
Other
Over. C
Overload protection
(note1)
When the Inverter detects an overload in the motor, the
internal electronic thermal overload operates and the
inverter output is switched off.
Over. L
Braking resistor overload
protection When BRD exceeds the usage ratio of the regenerative
braking resistor, the over-voltage circuit operates and the
inverter output is switched off.
OL. BRD
Over-voltage protection
When regenerative energy from the motor exceeds the
maximum level, the over-voltage circuit operates and the
inverter output is switched off.
Over. V
EEPROM error (note2)
When EEPROM in the inverter is subject to radiated noise
or unusual temperature rises, the inverter output is
switched off.
EEPROM
Under-voltage
When the incoming voltage of inverter is low, the control
circuit can’t operate correctly. The under-voltage circuit
operates and the inverter output is switched off.
Under. V
CT error
When an abnormality occurs to a CT (current detector) in
the inverter, the inverter output is switched off.
CT
CPU error
When a mistaken action causes an error to the inbuilt CPU,
the inverter output is switched off.
CPU1
External trip
When a signal is given to the EXT intelligent input terminal,
the inverter output is switched off.
(on external trip function select)
EXTERNAL
USP error
This is the error displayed when the inverter power is
restored while still in the RUN mode.
(Valid when the USP function is selected)
USP
Ground fault protection
When power is turned ON, this detects ground faults
between the inverter output and the motor.
GND. Flt
Incoming over-voltage
protection When the incoming voltage is higher than the specification
value, this detects it for 60 seconds then the over-voltage
circuit operates and the inverter output is switched off.
OV. SRC
Temporary power loss
protection
When an instantaneous power failure occurs for more than
15ms, the inverter output is switched off. Once the
instantaneous power failure wait time has elapsed and the
power has not been restored it is regarded as a normal
power failure.
However, when the operation command is still ON with
restart selection the inverter will restart. So please be
careful of this.
Inst. P-F
Abnormal temperature
When main circuit temperature raises by stopping of
cooling fan, the inverter output is switched off.
OH. FIN
Gate Allay error
Communication error between CPU and gate allay indicate
GA
Open-phase protection
When an open-phase on the input supply occurs the
inverter output is switched off.
PH. Fail
IGBT error
When an instantaneous over-current is detected on the
output the inverter output is switched off to protect the main
devices.
IGBT
Thermistor error
When the Inverter detects a high resistance on the
thermistor input from the motor the inverter output is
switched off.
TH