Details Of Protective Function - Panasonic MINAS-A5BL Series Manual

7-2 Details of Protective function

Error No. Protective
function
Main Sub
Voltage between P and N of the converter portion of the control
power supply has fallen below the specified value.
Control power
1) Power supply voltage is low. Instantaneous power failure
supply
11 0
undervoltage
2) Lack of power capacity...Power supply voltage has fallen
protection
3) Failure of servo driver (failure of the circuit)
Power supply voltage has exceeded the permissible input
voltage. = Voltage between P and N of the converter portion of
the control power supply has exceeded the specified value.
Source voltage is high. Voltage surge due to the
phase-advancing capacitor or UPS (Uninterruptible Power
Supply) have occurred.
Over-voltage
12 0
1) Disconnection of the regeneration discharge resistor
protection
2) External regeneration discharge resistor is not appropriate
3) Failure of servo driver (failure of the circuit)
Instantaneous power failure has occurred between L1 and L3
for longer period than the preset time with Pr 5.09 (Main power
Main power
off detecting time) while Pr 5.08 (LV trip selection at the main
supply
power-off) is set to 1. Or the voltage between P and N of the
0
undervoltage
converter portion of the main power supply has fallen below the
protection (PN)
specified value during Servo-ON.
1) Power supply voltage is low. Instantaneous power failure
13
2) Instantaneous power failure has occurred.
Main power
supply
3) Lack of power capacity...Power supply voltage has fallen
1
undervoltage
protection (AC)
4) Phase lack...3-phase input driver has been operated with
5) Failure of servo driver (failure of the circuit)
Current through the converter portion has exceeded the
specified value.
1) Failure of servo driver (failure of the circuit, IGBT or other
2) Short of the motor wire (U, V and W)
Over-current
0
protection
3) Earth fault of the motor wire
14
4) Burnout of the motor
5) Poor contact of the motor wire.
IPM error
6) Welding of relay contact for dynamic braking due to
protection
1
(IPM: Intelligent
7) Timing of pulse input is same as or earlier than Servo-ON. 7) Enter the pulses 100 ms or longer after Servo-ON.
Power Module)
8) The dynamic brake circuit was overheated and the thermal
(To be continued)
R1.00
Causes
has occurred
down due to inrush current at the main power-on.
and could not absorb the regeneration energy.
has occurred
down due to inrush current at the main power-on.
single phase input.
components)
frequent servo ON/OFF operations.
fuse is blown. (Only size F and size G)
No. SX-DSV02829 -
Measures
Measure the voltage between lines of connector and
terminal block (L1C–L2C).
1) Increase the power capacity. Change the power supply.
2) Increase the power capacity.
3) Replace the driver with a new one.
Measure the voltage between lines of connector (L1, L2 and
L3). Enter correct voltage. Remove a phase advancing
capacitor.
1) Measure the resistance of the external resistor
connected between terminal P and B of the driver.
Replace the external resistor if the value is ∞.
2) Change to the one with specified resistance and
wattage.
3) Replace the driver with a new one.
Measure the voltage between lines of connector (L1, L2 and
L3).
1) Increase the power capacity. Change the power supply.
Remove the causes of the shutdown of the magnetic
contactor or the main power supply, then re-enter the
power.
2) Set up the longer time to Pr 5.09 (Main power off
detecting time). Set up each phase of the power
correctly.
3) Increase the power capacity. For the capacity, refer to
Reference specification SX-DSV02828
of Applicable Peripheral Equipments" of Preparation.
4) Connect each phase of the power supply (L1, L2 and
L3) correctly. For single phase, 100 V and 200 V driver,
use L1 and L3.
5) Replace the driver with a new one.
1) Turn to Servo-ON, while disconnecting the motor. If
error occurs immediately, replace with a new driver.
2) Check that the motor wire (U, V and W) is not shorted,
and check the branched out wire out of the connector.
Make a correct wiring connection.
3) Measure the insulation resistance between motor wires,
U, V and W and earth wire. In case of poor insulation,
replace the motor.
4) Check the balance of resister between each motor line,
and if unbalance is found, replace the motor.
5) Check the loose connectors. If they are, or pulled out,
fix them securely.
6) Replace the servo driver. Do not use servo ON/OFF
during operation.
8) Replace the driver.
Motor Business Unit, Panasonic Corporation
145-
"Driver and List