Maintenance Manual.pdf - 第80页

AV131 MAINTENANCE MANUAL 4.1 Cont rol Sy ste m Confi guration D79MEC- 14-020-A0 4.1- 9 Func ti on Error code N o. Cause Co untermeasu re The r egenerativ e energy exc eeded the pr ocess i ng capaci t y of the regenerat i…

AV131

MAINTENANCE MANUAL

4.1 Control System Configuration

D79MEC-14-020-A0

4.1-8

Function

Error

code No.

Cause Countermeasure

* Overheat 15

Temperature of the radiator or power

elements in the servo amplifier

exceeded the rated values.

1. Ambient temperature of servo

amplifier is over the rated value.

2. Overloaded

1. Check the ambient temperature of the

servo amplifier and remedy the cooling

conditions.

2. Increase the servo amplifier/motor

capacity.

Increase the acceleration/deceleration

time.

Reduce load.

Overload 16

If the torque command value

exceeds the overload level set by

SV.Pr72 (overload level setting),

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.

7. The value of SV.Pr.72 is too small.

Check the torque (current) waveform for

oscillation or large vertical swing on the

graphic display of the PANATERM®.

Check the warning message for overload

and load factor with the PANATERM®.

1. Increase the servo amplifier/motor

capacity. Increase the capacity of the

Increase the acceleration/ deceleration

time or reduce the load.

2. Readjust the gain.

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.

7. Reset the SV.Pr72 value (reset to the

default setting).

AV131

MAINTENANCE MANUAL

4.1 Control System Configuration

D79MEC-14-020-A0

4.1-9

Function

Error

code No.

Cause Countermeasure

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.

3. Operating limit of the external

resistor has been limited to 10%

duty.

Check the load factor of the regenerative

resistor on the monitor of the

PANATERM®. This cannot be used with

sequential regenerative control.

1. Increase the regenerative processing

capacity, by changing to a motor/

amplifier 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.

3. When the SV.Pr6C (external

regenerative resistor selection) is 0 and

the built-in regenerative resistor is used,

and the SV.Pr6C is 3 and no external

regenerative resistor is used, use one

and set the SV.Pr6C to 1.

When the external regenerative resistor

is used and the SV.Pr6C is 1, secure the

regenerative overload protective

measures externally and set the

SV.Pr.6C to 2.

=REMARKS=

Before setting the SV.Pr.6C to 2, be sure to provide external protection, such

as temperature fuse.

Otherwise, the protection for regenerative resistor is lost and the regenerative

resistor generates heat abnormally, resulting in burnout.

Regeneration

overload

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 of SV.Pr.70 (Excessive

positional deviation).

1. The motor failed to follow the

movement of command.

2. The value of SV.Pr.70 (Excessive

positional deviation) is small.

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.

2. Increase the set value of SV.Pr70.

AV131

MAINTENANCE MANUAL

4.1 Control System Configuration

D79MEC-14-020-A0

4.1-10

Function

Error

code No.

Cause Countermeasure

* Excessive

hybrid

deviation

During full-closed, 2nd full-closed or

external encoder control mode, the

load position by external scale and

the motor position by encoder

deviated by more than the pulses set

by SV.Pr.7B (excessive hybrid

deviation).

Check the motor and load for connection.

Check for any looseness, sliding or play.

Check that the changed motor position

(encoder feedback value) and load position

(external scale feedback value) have the

same sign when moving the load.

Check if the settings of SV.Pr74 (External

scale numerator), SV.Pr75 (External scale

numerator scale factor) and SV.Pr76

(External scale denominator) are set

properly.

Overspeed 26

Motor rotating speed exceeded the

set value of SV.Pr73 (Acceleration

level setting).

Check for any excessive speed command

issued.

If overshoot occurred due to improper

adjustment of gain, adjust the gain.

* External

scale

communi

cation data

error

Communication error due to data

from external scale. Data from the

external scale causes

communication error. Mainly caused

by noise. Although the data was

received successfully, the contents of

data were abnormal.

Separate the motor cable from the

connection cable of the external scale if

connected together.

Connect the shield to the FG. Refer to the

connection diagram of the external scale.

Deviation

counter

overflow

Deviation counter exceeded 2

(134217728).

Check if the motor rotates according to the

position command pulse.

Check the torque monitor for saturated

output torque. Set SV.Pr5E (1st torque limit

setting) and SV.Pr5F (2nd torque limit

setting) to the maximum value.

Adjust the gain.

Increase the acceleration/deceleration time

and lighten the load to decrease the speed.

Software limit 34

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.

2. The value of SV.Pr.26 (Software

limit setting) is small.

1. Check the gain (balance of positional

loop gain and speed loop gain) and

inertia ratio.

2. Increase the setting value of SV.Pr26.

Or, set SV.Pr26 to 0 to disable the

software limit protection.

* External

scale

connection

error

Trouble occurred in the wire

connection of the external scale

(breaking, etc.)

Perform wiring of the external scale as

indicated.

Reconnect the connector pins correctly.

Secure the power supply voltage 5V

DC±5% (4.75 to 5.25V) of the external

scale. Use care especially when the

connection cable is long.

* 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.

Consult with the dealer for inspection

(repair).