Function library
Function blocks
3.5.48 Speed setpoint conditioning (NSET)
3−228
l
EDSVS9332P−EXT DE 2.0
3.5.48.3 Setpoint inversion
The output signal of the JOG function is led via an inverter.
The sign of the setpoint is inverted, if the input NSET−N−INV is triggered with HIGH signal.
Ramp function generator for the main setpoint
The setpoint is then led via a ramp function generator with linear characteristic. Setpoint
step−changes at the input are thus led into a ramp.
100%
0
t
ir
t
if
t
ir
t
if
t
RFG−OUT
[%]
W1
w2
T
ir
+ t
ir
100%
w2 * w1
T
if
+ t
if
100%
w2 * w1
Fig. 3−174 Acceleration and deceleration times of the ramp function generator
l
The ramps can be set separately for acceleration and deceleration.
– Different acceleration and deceleration times can be activated via the inputs NSET−TI*x 16
(for table and function see JOG setpoints; the decoding must be done according to the
signal graphic).
– The T
i
times can only be activated in pairs.
l When the controller is inhibited (CINH) the ramp function generator accepts the value that was
applied to the input NSET−CINH−VAL and transmits it to the next function. This function has
priority over all other functions.
l NSET−RFG−STOP = HIGH
– The ramp function generator is stopped. Changes at the input of the ramp function
generator have no effect on the output.
l NSET−RFG−0 = HIGH
– The ramp function generator decelerates to zero along the deceleration ramp.
l It is also possible to load the ramp function generator online with a defined value. For this, the
input NSET−LOAD must be set to HIGH. As long as this input is set, the value at input
NSET−SET is accepted by the ramp function generator and provided the output.
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