Lenze EVS9332xP - Manual (Page 19)

Configuration
Basic configurations
2.2.2 Speed control C0005 = 1XXX (1000)
2−7
l
EDSVS9332P−EXT DE 2.0
Inverting the main setpoint
Via terminals E1 and E2 the main setpoint can be inverted (i.e. the sign of the input value is changed).
The following applies:
E1 E2 Main setpoint
0 0 Drive executes QSP (quick stop)
1 0 Main setpoint not inverted
0 1 Main setpoint inverted
1 1 Drive maintains its previous state
Acceleration and deceleration times for the main setpoint path
The main setpoint is controlled via a ramp function generator. Like this, input steps can be converted
to a ramp.
The acceleration time and deceleration time refer to a change in speed from 0 to n
max
(0% to 100%).
The calculation of the times T
ir
(C0012) and T
if
(C0013) to be set is described in the NSET function
block description.
Additional acceleration and deceleration times
For the ramp function generator of the main setpoint (NSET−N/JOG setpoint) you can call additional
acceleration and deceleration times from the memory via the NSET−TI*x inputs, e.g. to change over
the acceleration speed of the drive from a specific speed. For this, these inputs have to be assigned
to a signal source. A maximum of 15 additional acceleration and deceleration times can be
programmed.
S−shaped ramp function generator characteristic
For the ramp function generator of the main setpoint you can select two different characteristics via
C0134:
l Linear characteristic for all acceleration processes requiring a constant acceleration
l S−shaped characteristic for all acceleration processes requiring a jerk−free acceleration
Code Parameter Meaning
C0134 0
1 Linear characteristic
S−shaped characteristic
C0182 0.01 … 50.0 s T
i
−time for the S−shaped ramp function generator
C0012 0.00
… 999.9 s
T
ir
−time for the acceleration
C0013 0.00 … 999.9 s T
if
−time for the deceleration
Additional setpoint
Via input X6/3,4 (or also another signal source) an analog additional setpoint (bipolar) can be
connected. The additional setpoint (display in C0049) internally first goes to the NSET function block
via an analog switch. Here the additional setpoint first is lead across a facility for inversion. This facility
for inversion is deactivated. Furthermore there is a ramp function generator (acceleration and
deceleration times via C0220/C0221) before the additional setpoint is linked with the main setpoint
in the arithmetic block. The additional setpoint for instance can be used as a correcting signal for
grinding machines (for controlling a constant circumferential speed when the grinding wheel
diameter is decreased).
If you want to use the additional setpoint, set code C0190 to the desired arithmetic link. According
to the default setting, code C0190 is parameterised to 0. Thus the additional setpoint is switched off.