Mannesmann ecodrive03 User Manual

ECODRIVE03 SMT-02VRS Description of diagnostic letters F... and E... 3-9
DOK-ECODR3-SMT-02VRS**-WA01-EN-P
Remedy:
Ref. 1. Check S-0-0115, Position feedback 2 type parameter and
S-0-0117, Resolution of feedback 2.
Ref. 2. Check S-0-0121, S-0-0122, Input/Output revolutions of load
gear and S-0-0123, Feed constant.
Ref. 3. Increase S-0-0391, Monitoring window feedback 2; switch off
when using a gearbox with a large amount of slip.
Ref. 4. Replace encoder cable.
Ref. 5. Reduce the velocity.
Ref. 6. Set S-0-0391, Monitoring window feedback 2 to 0 (de-activate
monitoring function).
Ref. 7. Perform P-0-0012, C300 Command ’Set absolute
measurement’.
See also the functional description "Actual Feedback Value Monitoring".
F237 Excessive position command difference
Cause:
When the drive is operating in position control, incoming position
command values are monitored. If the velocity required of the drive by
two successive position command values is greater than or equal to the
value in S-0-0091, Bipolar velocity limit value, position command value
monitoring is initiated. The Excessive position command value is
stored in parameter P-0-0010. The last valid position command value
is stored in parameter P-0-0011.
If position data are to be processed in modulo format, then the
interpretation of the command is also dependent on the value set in
S-0-0393, Command value mode for modulo format. The parameter
should be set for the "shortest path" (0).
Remedy:
Compare S-0-0091, Bipolar velocity limit value with the velocity in the
program and adjust to match it, if necessary.
F242 Encoder 2 failure: signal amplitude wrong
Cause:
The analog signals of an external measurement system are used for high
resolution analysis of that measurement system. These are monitored
according to two criteria:
1. The pointer length, which is calculated from the amplified sine
and cosine signals, must be at least 1 V.
2. The maximum pointer length resulting from the sine and cosine
signals must not exceed 11.8 V.
pointer length = sin + cos
22
Fig. 3-3: Pointer length

Mannesmann ecodrive03 Specifications

General

Brand	Mannesmann
Model	ecodrive03
Category	DC Drives
Language	English