Bosch PIN8 N1 Anleitung zur Fehlerbehebung PDF herunterladen (Seite 181)

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101

MPH-02, MPB-02, MPD-02 Motor, Mechanical Axis System, Measuring Systems 5-57

DOK-INDRV*-MP*-02VRS**-FK01-EN-P

Monitoring the encoder signals allows detecting faulty states, such as:

• encoder is dirty

• noise injection in the case of inappropriate wire routing or wire design

• exceeding the max. allowed encoder velocity (limit frequency of the

encoder signals)

• wire break or short circuit on wire

In addition it is possible to monitor drives with an encoder that can be

evaluated in absolute form for compliance with the position when

switching on compared to the last time the drive was switched off. This

allows detecting, for example, whether a vertical axis moved down after

the machine was switched off or whether an axis was moved away from

the position it had when the machine stopped.

It is also possible to monitor the difference between the actual position

values of motor encoder and external encoder. This allows, for example,

detecting slip due to wear in mechanical transfer elements between motor

and axis at an early stage.

If the loss of the position data reference of absolute encoders (motor

encoder or optional encoder) is detected due to changes in parameter

values, e.g. of the mechanical drive system, the drive will signal this faulty

status.

• S-0-0391, Monitoring window feedback 2

• P-0-0095, Absolute encoder monitoring window for motor

encoder

• P-0-0096, Absolute encoder monitoring window for opt. encoder

• P-0-0177, Absolute encoder buffer 1 (motor encoder)

• P-0-0178, Absolute encoder buffer 2 (optional encoder)

• P-0-0185, Function of encoder 2 (optional encoder)

• P-0-0391, Actual position value difference encoder1 - encoder2

• E2074 Encoder 1: encoder signals disturbed

• E2075 Encoder 2: encoder signals disturbed

• F2036 Excessive position feedback difference

• F2042 Encoder 2: encoder signals incorrect

• F2046 Max. signal frequency of encoder 2 exceeded

• F2048 Low battery voltage

• F2074 Actual pos. value 1 outside absolute encoder window

• F2075 Actual pos. value 2 outside absolute encoder window

• F2174 Loss of motor encoder reference

• F2175 Loss of optional encoder reference

• F8022 Enc. 1: enc. signals incorr. (can be cleared in ph. 2)

Functional Description

IndraDrive controllers can evaluate signals of the following encoder types:

• sine encoder 1 Vpp (Heidenhain standard)

• resolver encoder (Rexroth standard)

• square-wave encoder 5V TTL (Heidenhain standard)

Monitoring the Axis Position

when Switching On

Monitoring Mechanical Transfer

Elements

Monitoring the Position Data

Reference

Pertinent Parameters

Pertinent Diagnostic Messages

1 2 ... 176 177 178 179 180 181 182 183 184 185 186 ... 727 728

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