Originally Posted by bherr  Joe,
the motor is a SEM Type MT 30Z4-61
Max RPM =8300
Volts=140
Pulse Amps=50
Tacho= 9.5
Can you explain A vs B as I have no idea what your talking about.
Ben |
Ben,
Al brings up a good point to find out what type of encoder it is. If this is not a TTL/CMOS pulse type encoder, it might be harder to check with a meter or logic probe. A scope might be your only option.
I have had pulse type encoders that checked out fine with a logic probe, but when viewing the signals on a scope, the initial rise of the pulse was slow.
Simply put for incremental pulse encoders. The basic outputs are 2 signals 90 degees out of phase from each other. These are commonly refered to as A pulse and B pulse signals that rise and fall as the encoder rotates. Setting still, these 2 wires/lines/signals might be any combination of high or low. This format allows the control to differentiate the directional rotation by logic of which signal goes high or low first, relative to the next change in state-an up or down count. The Z pulse is primarily used at the homing sequence as a marker pulse after finding the homing switch.
DC