Control Techniques UD70, User Manual

Page: 105 / 154

UD70
Issue code: 70nu2
Features 8-7
8.7 Parameter Descriptions
_
Q0% Final speed demand
Units Encoder lines per second
Range
– –
2
31
to 2
31
Default -----
Reset H = CAL S = CAL P = CAL
_ Q0% gives the speed reference output from the PID controller in units of
encoder lines per second. The value is reset to 0 on power up.
_
Q1% Auxiliary encoder position
Units Encoder lines
Range –2
31
to 2
31
Default -----
Reset H = S/V S = N/A P = 0
_ Q1% shows the position of the auxiliary (or reference) encoder, relative to
the position at power up. The DPL program can change the value in this
parameter at any time.
_
Q2% Slave target position reference
Units Encoder lines
Range –2
31
to 2
31
Default -----
Reset H = S/V S = N/A P = 0
_ Q2% is the target position for the slave, and is used as the input to the
profile generation block. When selected, the control loop will attempt to
make the feedback position (
_ Q8% or _ Q1%) equal to _ Q2%. The actual
speed profile is modified by the ramp rates ( _ Q12% and _ Q13%), ramp type
(linear or S-ramp), and maximum speed (_Q14%).
When running in speed mode ( _ Q32%.3 = 1), _ Q2% is updated with the
calculated stopping position.