Bosch Rexroth OptiFeed-FS EcoDrive 03 FLP04VRS, Functional Description

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ECODRIVE03-FL*-04VRS Functions
8-57
DOK-ECODR3-FL*-04VRS**-FK01-EN-P
Between position measurement and pulse output, there is a deadtime
(delay) of about 1 ms.
If the deadtime compensation is set to 1 in
parameter C014, Encoder emulation type, then this time is
compensated for in the drive.
At the end of each time interval, the signal levels can remain constant
for a certain period of time. During the time interval T
A
, the output
frequency cannot be changed . This effect is especially noticeable at high
frequencies, i.e., when the number of graduation marks is great and/or at
high speeds.
Diagnostic Messages with Incremental Encoder Emulation
The following diagnostic messages are generated with incremental
encoder emulation:
•
F253 Incremental encoder emulator: Pulse frequency too high
The output frequency for the set number of graduation marks exceeds the
value of 1024 kHz.
•
Decrement number entered for C015, Encoder emulation
resolution.
•
Reduce travel velocity
output of all graduation marks detected in the interval is monitored and
was incorrect in this case, leading to a position offset. This error occurs
only during extremely long interrupt periods.
•
All software options not absolutely required are disabled, e.g.,
processing of the second analog input, signal output via the two
analog outputs, etc.
Compensation for Delay
(Deadtime) Between Real and
Emulated Positions
Pulse Breaks at the End of the
Pulse Output Cycle
Cause:
Remedy:
Cause:
Remedy: