Axus PA-08 Manuale di Servizio Scaricare il pdf (Pagina 81)

SERVICE MANUAL TNC 415B/425

Page 76

Issue: 20.08.95

13. Encoders

13.1 Error Messages for Axes with Analogue

Speed Controller

ENCODER <AXIS> DEFECTIVE YA

A = signal amplitude error

ENCODER <AXIS> DEFECTIVE YB

B = signal frequency error

ENCODER <AXIS> DEFECTIVE YC

C = error with distance-coded scales

Y = CPU number 1 = main processor

2 = geometry processor

3 = CLP processor

13.1.1 Error Causes

• Glass scale contaminated or damaged

• Scanning head contaminated or defective

• Cable damaged

• Encoder input of the logic unit (LE) defective

13.1.2 Error Location

In order to determine whether the encoder or the encoder input of the logic unit is defective, the encoders

can be switched at the logic unit. For this purpose the corresponding machine parameters must be altered

as well:

Function MP Entry Value

Allocation of the axes X

to the encoder inputs Y

110.0

110.1

110.2

110.3

110.4

0 = X1

1 = X2

2 = X3

3 = X4

4 = X5

5 = X6

X6 may be used for a machine axis, if no oriented spindle stop is required.

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Axus PA-08 Manuale di Servizio Pagina 81