UD70
Issue code: 70nu2
Features 8-13
_Q20%.31 _Q20%.31 provides a means of enabling and disabling the position
loop while the drive is running. #17.12 must be programmed and
stored to configure the position loop, but the REINIT command does
not re-read parameter #17.12.
NOTE: when
_Q20%.31 is set to 1, all position parameters are reset to
zero, except
_Q8%,_Q0% and #91.02. This means that the last
calculated speed reference value will remain in #91.02, and the drive
will continue to run at that speed. The DPL program should ensure
that
_Q0% and #91.02 are to reset to zero when _Q20%.31 is set.
0 enable position loop
1 disable position loop
_Q21% Feedback encoder freeze value
Units Encoder lines
Range –2
31
to 2
31
Default -----
Reset H = S/V S = N/A P = N/A
If _Q20%.5 is set to 1, _Q21% stores the absolute position of the feedback
encoder when the freeze input on the Second Encoder Module is activated.
_Q20%.5 is reset to zero once the value has been latched.
_Q22% Auxiliary encoder freeze value
Units Encoder lines
Range –2
31
to 2
31
Default -----
Reset H = S/V S = N/A P = N/A
If _Q20%.5 is set to 1, _Q22% stores the absolute position of the auxiliary
(or reference) encoder when the freeze input on the Second Encoder
Module is activated. _Q20%.5 is reset to zero once the value has been
latched.
_Q24% Auxiliary encoder speed feedback
Units Encoder lines per second
Range –2
31
to 2
31
Default CAL
Reset H = CAL S = CAL P = CAL
_Q24% shows the speed of the auxiliary (or reference) encoder. This value
is calculated directly from the encoder lines and is not filtered.
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