YASKAWA SERVO Manuel d'utilisateur télécharger pdf (Page 196)

9 Troubleshooting

9-24

(2) Linear Servomotors

Problem Probable Cause Investigative Actions Corrective Actions

Linear

Servomotor Does

Not Start When

Using JOG

Operation or Host

Controller

Reference.

The control power supply is not

ON.

Check voltage between control

power supply terminals.

Correct the control power circuit.

The main circuit power supply is

not ON.

Check the voltage between power

supply terminals.

Correct the power circuit.

Wrong wiring or disconnection of I/

O signal connector CN1

Check if the connector CN1 is prop-

erly inserted and connected.

Correct the connector CN1 connec-

tion.

Linear servomotor cable or linear

connection cables disconnected.

Check the wiring. Correct the wiring.

The linear servomotor is over-

loaded.

Run under no load and check the

load status.

Reduce load or replace with larger

capacity linear servomotor.

Settings for input signals PnB03 to

PnB12 are incorrect.

Check settings of input signals

PnB03 to PnB12.

Correct the settings of input signals

PnB03 to PnB12.

A servo ON command was not

input.

Check the command sent from the

host controller.

Send a servo ON command.

The forward run prohibited (P-OT)

and reverse run prohibited (N-OT)

input signals are turned OFF.

Check P-OT or N-OT input signal.

Turn P-OT or N-OT input signal

ON.

The current position of the servo-

motor is outside the software limit

setting range.

Check the error at the INDEXER

Module.

Check the motor position and soft-

ware limit setting (PnB21, PnB23),

then move the servomotor into the

software limit setting range.

There is not position reference, or it

is incorrect.

Check the error at the INDEXER

Module.

Set the program table correctly.

The polarity detection is not exe-

cuted.

Check the parameter Pn080. Correct the setting of Pn080.

Check the command sent from the

host controller.

When using an incremental linear

scale, send the servo ON command.

When using an absolute linear

scale, execute polarity detection

(Fn080).

The safety input signal (/HWBB1 or

/HWBB2) remains OFF.

Check the /HWBB1 or /HWBB2

input signal.

Set the /HWBB1 or /HWBB2 input

signal to ON.

When not using the safety function,

mount the safety function jumper

connector (provided as an acces-

sory) on the CN8.

A SERVOPACK fault occurred. – Replace the SERVOPACK.

Linear

Servomotor

Moves

Instantaneously,

and then Stops

Linear servomotor wiring is incor-

rect.

Check the linear servomotor wiring.

Correct the linear servomotor wir-

ing.

Serial converter unit wiring is incor-

rect.

Check the serial converter unit wir-

ing.

Correct the serial converter unit

wiring.

Linear scale wiring is incorrect. Check the linear scale wiring. Correct the linear scale wiring.

Linear scale pitch (Pn282) is incor-

rect.

Check the setting of Pn282. Correct the setting of Pn282.

Linear scale counting up direction

and motor moving coil forward

direction do not agree.

Check the directions.

Change the setting of Pn080.1

(Motor Phase Selection).

Match the linear scale direction and

moving coil direction.

Polarity detection is not performed

correctly.

Check if the value of Un004 (Elec-

tric Angle 2, angle from polarity

origin) at an arbitrary position is

between ±10 degrees.

Correct the settings for the polarity

detection related parameter.

Linear

Servomotor

Speed Unstable

Wiring connection to linear servo-

motor is defective.

Check connection of power lead

(phases U, V, and W) and the con-

nectors of serial converter unit con-

nection cables.

Tighten any loose terminals or con-

nectors.

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YASKAWA SERVO Manuel d'utilisateur Page 196

Commentaires sur ces manuels

YASKAWA SERVO Manuel d'utilisateur Page 196

Commentaires sur ces manuels

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