NORD Drivesystems BU0510 - Manual (Page 71)

7 Troubleshooting
BU 0510 GB-3911 Subject to technical alterations 71
Display
in the ControlBox Fault
Text in the ParameterBox
Cause

Remedy
Group Details in
P700 / P701
14.5 Pos. diff. Speed Change of position and speed do not match

Check the position detection and the control setting in
P630
14.6 Diff. between Abs. and Inc. Difference between absolute and incremental encoders

Check the position detection and the control setting in
P631

Position change for the absolute and incremental
encoders do not match
14.7 Max. Pos. Exceeded Maximum position exceeded

Check the specified setpoint and the control setting in
P615
14.8 Min. Pos. Undershot Minimum position undershot

Check the specified setpoint and the control setting in
P615
E025 25.0 Hiper. abs./inc. error Hiperface encoder monitoring detects an error during
comparison of data between the incremental and absolute
signals. (absolute position deviates from that which is
calculated incrementally)

Poor cable shielding

The Sin/Cos signals are not connected or are
defective. Check with P709[-09] and [-10]
25.1 Universal encoder
communication Communication error for the universal encoder interface (CRC
checksum error)

Poor cable shielding

Encoder triggering incorrectly set. (BISS, SSI)

SSI does not support Multiply Transmit
25.2 No corresp. universal
encoder No connection to selected universal encoder

Encoder not connected or data cable not connected
correctly

No voltage supply to encoder

Incorrect encoder type set
25.3 Universal encoder resolution The set universal encoder resolution does not match that
which is transmitted by the encoder.
25.4 Universal encoder error The universal encoder reports an internal error to the the FI

Restart encoder
NOTE
Parameter P650[-03] counts the communication errors to the universal encoder since switch-
on. If this parameter has a high value, this may indicate a poorly shielded encoder cable. This
may also be the cause of the error.
A communication error does not necessarily result in a fault. An error is only triggered if
several consecutive communications have failed.