Control Techniques UD70

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.