Cedrat Technologies CCBu40 - Page 24

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CCBU40 COMPACT CONTROLLER BOARD - PRODUCT AND WARRANTY INFORMATION Version 1.21
The upper limit has to be larger than the lower
limit.
‘N’
This command sets the lower limit for the output
to the power amplifier, for the selected axis. If the
controller output is smaller it will be saturated to
this value.
The lower limit must be smaller than the upper
limit.
[-1V ; +7.5V]
‘N-0.65E’ sets the lower limit of
the output at -0.65V.
‘O’
This command allows to correct an intrinsic strain
gauge offset by adding a voltage to the output of
the sensor conditioner.
[-5V ; +5V]
‘O-1.23E’ sets the output ‘SX’
to -1.23V (if the intrinsic offset
is 0)
‘P’
Sets the proportional term P of the PID controller,
for the selected axis.
P≥0
‘I’
Sets the integral term I of the PID controller, for
the selected axis.
I≥0
‘D’
Sets the Derivative term D of the PID controller,
for the selected axis.
D≥0
‘F’
Sets the cut-off frequency Fc1 of the notch filter
and the low-pass filter, for the selected axis.
Fc1≥0
‘S’
Sets the cut-off frequency Fc2 of the second
notch filter (activated for C=4), for the selected
axis.
Fc2≥0
‘C’
Selects the output filter to be applied on the PID
output, for the selected axis.
0: No filter
1: 2nd order Low-pass
filter (Fc1).
2: 2nd order Notch filter
(Fc1)
3: 4th order Notch filter
(Fc1)
4: 2 x 2nd order Notch
filters in series with two
different frequencies
(Fc1 and Fc2)
‘G’
Sets the linear gain of the sensor feedback, for
the selected axis.
This gain can be used to invert sensor feedback
or to rescale the order magnitude (since the order
gain corresponds to the sensor gain).
This only changes the gain of the sensor in
software, the analog sensor signals are not
impacted.
This gain is set to 1 by default. In standard
configurations, it is recommended to leave it
unchanged.
‘G1E’ sets the linear gain of the
sensor feedback to 1.