Maintenance Manual.pdf - 第76页

RL131 MAINTENANCE MANUAL 4.1 Control S ystem Conf iguration DA8MEC-14-020- A0 4.1-7 Function Error code No. Cause Count ermeasure *Overheat 15 Temper ature of the radiator or power elements in the ser vo drive r exceeded…

RL131

MAINTENANCE MANUAL

4.1 Control System Configuration

DA8MEC-14-020-A0

4.1-6

Function

Error

code No.

Cause Countermeasure

Insufficient

main power

voltage

Voltage between P and N of the main

power converter dropped to below

the rated value when the servo

amplifier was ON.

1. Low power supply voltage.

2. Instantaneous power failure

occurred.

3. Insufficient power capacity:

Voltage dropped due to rush

current at power ON.

4. Open phase: Servo driver with

3-phase input spec. was operated

with single-phase power.

5. Faulty servo driver (circuit).

6. After the maintenance switch was

turned ON and a safety stop was

cleared, it was turned OFF

immediately.

7. After a safety cover was closed to

clear a safety stop, it was opened

immediately.

Measure the line voltage of the main power

input terminal [connector or terminal block

(L1, L2, L3)].

1. Change the power supply. Eliminate the

cause of failed electromagnetic contactor

and turn power back ON.

2. Set each phase of the power supply

correctly.

Contact our service department.

3. Increase the power capacity.

4. Connect each phase (L1, L2, L3) of the

power supply correctly.

Use L1 and L3 for a single phase

100/200V.

5. Replace the servo driver.

6. Turn power OFF once and turn it back

ON.

7. Turn power OFF once and turn it back

ON.

*Overcurrent 14

Current exceeding rated value of the

converter flowed.

1. Faulty servo driver (Defective

parts in the circuit or IGBT)

2. Short-circuit occurred in the motor

wire terminals U, V and W.

3. Ground fault occurred in the motor

wire.

4. The motor burnt out.

5. The motor wire in poor contact.

6. The relay of the dynamic of brake

welded by frequent ON/OFF of the

servo amplifier.

7. Mismatch between the motor and

servo amplifier.

1. Disconnect the motor cable and turn ON

the servo driver. If the same error

reoccurs immediately, replace the servo

amplifier with a new one (or the one that

is running properly).

2. Check the motor wires U, V and W for

short circuit.

Check for any whiskers on the connector

leads.

Make sure the motor wires are connected

properly

3. Check the insulation resistance between

the motor wire terminals U/V/W and the

grounding wire.

In case of an insulation failure, replace

the motor.

4. Check the resistance of the motor

between the lines for proper balance. If

not balanced, replace the motor.

5. Check the connector pins U, V and W at

the motor terminal. If loose or missing,

secure them in place.

6. Replace the servo driver. Do not turn

ON/OFF the servo to start/stop the

amplifier.

7. Check the product number (capacity) of

the motor/servo driver on the

nameplate and change to the motor

applicable to the servo driver.

RL131

MAINTENANCE MANUAL

4.1 Control System Configuration

DA8MEC-14-020-A0

4.1-7

Function

Error

code No.

Cause Countermeasure

*Overheat 15

Temperature of the radiator or power

elements in the servo driver

exceeded the rated values.

1. Ambient temperature of servo

driver is over the rated value.

2. Overloaded

1. Check the ambient temperature of the

servo driver and remedy the cooling

conditions.

2. Increase the servo driver/motor

capacity.

Increase the acceleration/deceleration

time.

Reduce load.

Overload 16

If the torque command value

exceeds the overload level, overload

will result based on the time limit

characteristics to be described later.

1. The unit was activated for a long

time with heavy load and the

effective torque exceeded the

rated torque.

2. Oscillation or hunting occurred due

to improper adjustment of gain.

3. Improper or broken motor wiring

4. Collided with the mechanical unit

or the mechanical unit was

sluggish suddenly. The mechanical

unit became complicated.

5. Motor is driven with the

electromagnetic brake.

6. Motor cable misconnected to

another axis when multiple units

are connected.

1. Increase the servo driver/motor

capacity. Increase the capacity of the

Increase the acceleration/ deceleration

time or reduce the load.

2. Contact our service department.

3.Connect the wiring of the motor

according to the wiring diagrams.

Replace the cable.

For CN X2, connect the cables in the

order of black (W), white (V) and red (U)

from the bottom.

4. Correct the distortion of machine.

Reduce load.

5. Measure the voltage at the

electromagnetic brake terminal.

Release the electromagnetic brake.

6. Perform wiring properly so that the motor

cable and encoder cable may be

connected one-one-one to the amplifier.

*Regeneration

overload

The regenerative energy exceeded

the processing capacity of the

regenerative resistor.

1. Regenerative in deceleration due

to large inertia caused the

converter voltage to rise. Also,

insufficient absorption of

regenerative resistance energy

further raised the voltage.

2. The regenerative energy cannot be

absorbed within the prescribed

deceleration time because of high

number of motor rotations.

1. Increase the regenerative processing

capacity, by changing to a motor/

driver of larger capacity or by

providing an external regenerative

resistor.

2. Reduce the regenerative energy during

deceleration, by decreasing the motor

rotations or by prolonging the

deceleration time, etc.

RL131

MAINTENANCE MANUAL

4.1 Control System Configuration

DA8MEC-14-020-A0

4.1-8

Function

Error

code No.

Cause Countermeasure

*Encoder

communi-

cation error

Communication between the encoder

and servo amplifier was interrupted

at a certain count and breaking

detection function activated.

Encoder

communi-

cation data

error

Data from the encoder caused

communication error. (Mainly due to

noise in the data) Although the data

was received successfully, the

contents of data were abnormal.

 Connect the encoder cable according to

the wiring diagram.

 Reconnect the connector pins correctly.

 Connect the encoder cable to the CN X6

connector. (Check if the connector is not

connected to the CNX7 connector for the

external scale.)

 Secure the power supply voltage 5V

DC±5% (4.75 to 5.25V) of the encoder.

Use care especially when the encoder

cable is long.

 Separate the motor cable from the

encoder cable if connected together.

Excessive

positional

deviation

Positional deviation pulse exceeded

the set value.

1. The motor failed to follow the

movement of command.

1. Check if the motor rotates according to

the position command.

Check the torque monitor for saturated

output torque. Adjust the gain. Set

SV.Pr5E (1st torque limit setting) to the

maximum value. Connect the encoder

according to the wiring diagram. Increase

the acceleration/ deceleration time and

lighten the load to decrease the speed.

Overspeed 26

Motor rotating speed exceeded the

set value .

 Check for any excessive speed

command issued.

Deviation

counter

overflow

Deviation counter exceeded 2

(134217728).

 Contact our service department.

Software limit

The motor exceeded the allowable

movable range set by the SV.Pr26

(Software limit setting) for the

position command input range.

1. The gain is not matched.

1. Contact our service department.

*EEPROM

parameter

error

When reading the data from the

EEPROM at power ON, the

parameter save area data was found

to be destroyed.

 Set all parameters again.

 If the error persists, the EEPROM may

be defective. Replace the servo amplifier.

 Contact our service department.

*EEPROM

check code

error

When reading the data from the

EEPROM at power ON, the

EEPROM write check data was

found to be destroyed.

 Replace the servo driver because it may

be faulty.

 Contact our service department.

Emergency

stop input

error

When the emergency stop input

(EMG-STP: CN X5 2 pin) is turned

OFF, the system takes it as an error

and trip occurs.

 Check for any abnormality in the switch

power or wires connected to the

emergency stop input.

 Check that the emergency stop input (CN

X5 2 pin) is turned ON.

 Check that the rising time of the control

signal wire (12 to 24V DC) at power ON

is not longer than the one for the servo

driver.

*Encoder Z

phase error

Missing pulses of serial encoder

Z-phase were detected. (2500 [p/r]

5).

Replace the servomotor.

*Encoder CS

signal error

CS signal logic error of serial

encoder was detected. (2500 [p/r] 5)

Encoder is at fault.

Replace the servomotor.