Faulhaber MCDC2805 series, Instruction Manual, Page: 35 / 60

Handling Errors and the Error Output
35
Pulse Output
Pulses from the Hall Sensor are processed and are then sent out at
the fault output.
Properties of the pulse output:
■
Maximum Pulse Frequency: 2000 Pulses per second
■
At speeds in excess of the maximum pulses per second the
maximum pulse frequency will be transmitted
■
The programmed number of pulses will be reached exactly.
That means you can get the right position by counting the
pulses (no drift).
■
The output pulses can exhibit a variance over time (lagtime).
■
Because the output has only one channel the direction of
rotation cannot be registered.
Command Function Description Example
LPN *) Load Pulse Number Sets pulse number LPN16
with a range of 1 to 255
GPN Get Pulse Number Calls up current GPN
number of pulses
➔
16
ERROUT *) Error Output Switches to ERROUT
Fault Output Mode
ENCOUT *) Encoder Output Switches to ENCOUT
Pulse Output Mode
Example:
LPN64
➔
... Sets 64 pulses per revolution
ENCOUT
➔
... Sets pulse output mode
That means that at 1800 rpm: (1800/60)*64 = 1920 pulses per
second.
At 3000 rpm: (3000/60)*64 = 3200 pulse per second. In this case,
since the maximum output pulses at the fault output is 2000, drift
will occur. Accurate positioning at pulse numbers above 2000 is not
possible.