SMT-BD2
Check that the Sin/Cos encoder commutation channels are correctly wired on the amplifier X1 connector.
Check that the commutation signal jumpers COM are correctly set.
Check for the correct Sin/Cos encoder supply voltage value.
Check for the correct Sin/Cos encoder C channel and D channel signal amplitude value.
Check that the
Motor encoder resolution
parameter value is correct.
Check that the encoder-amplifier-motor ground connections and shield answer the requirements of
chapter 4
.
2.8
-
"ENCODER"
FAULT
For the “incremental encoder" configuration:
Check the encoder supply connection on the amplifier connector X1.
Check that the encoder signal jumpers COD are correctly set.
Check the encoder A channel, B channel and marker pulse connections on the amplifier connector X1.
If the motor encoder is not providing a marker pulse channel output, the amplifier marker pulse channel must be
disabled in order to cancel the "Encoder" fault. In this case the encoder marker pulse jumper ZM must be set in
the disabled position as described below.
Encoder marker pulse disabled
Encoder marker pulse enabled
ZM
ZM
!
When the amplifier marker pulse channel input is disabled, the encoder counting protection is disabled
(
see section 2.9 "Counting" fault
). In this case an incorrect encoder pulses counting can involve
uncontrolled motor movements that may be dangerous for operator and machine.
For the “ Absolute single turn Sin/Cos encoder” configuration:
Check the encoder supply connection on the amplifier connector X1.
Check that the encoder signal jumpers COD are correctly set.
Check the encoder A channel and B channel connections on the amplifier connector X1.
45
Chapter 7 - Fault finding
