Maintenance Manual - 第81页

AV131 MAINTENANCE MANUAL 4.1 Cont rol Syst e m Confi guration D79MEC- 14-020-A0 4.1- 10 Func ti on Error code N o. Cause Co untermeasu re * Ex cessi v e hybri d devi ation 25 Duri ng full- closed, 2nd f ull-cl osed or ex…

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).

AV131

MAINTENANCE MANUAL

4.1 Control System Configuration

D79MEC-14-020-A0

4.1-11

Function

Error

code No.

Cause Countermeasure

* 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 amplifier because it may

be faulty.

Consult with the dealer for inspection

(repair).

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

amplifier.

Absolute

system failure

Built-in capacitor voltage dropped to

below the rated value because the

supply power to the 17-bit absolute

encoder and battery power ran down.

Connect the battery power and clear the

absolute encoder.

The alarm cannot be cleared unless the

absolute encoder is not cleared.

* Absolute

counter

overflow

The multiple rotation counter of the

17-bit absolute encoder exceeded

the rated value.

Set the SV.Pr0B (absolute encoder setting)

to a proper value.

Set the travel from the machine origin to

within 32767 rotations.

Absolute

overspeed

The rotating speed of the motor

exceeded the rated value while

battery power only was being

supplied at power failure of the 17-bit

absolute encoder.

Check the power voltage (5±5%) on the

encoder side.

Check the connector CN X6 for proper

connection. The alarm cannot be cleared

unless the absolute encoder is not cleared.

* Absolute

single-rotation

counter error

The 17-bit absolute encoder detected

a single rotation counter error. Single

rotation counter error of serial

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

Replace the servomotor.

*Absolute

multiple-

rotation

counter error

The 17-bit absolute encoder detected

a multiple rotation counter error. AB

phase signal error of serial encoder

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

Replace the servomotor.

Absolute

status error

The 17-bit absolute encoder rotated

at the rated value or more at power

Do not let the motor move when turning

power ON.

* 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.