Lenze 8200 motec frequency inverter 0.25kW-7.5kW - Manual (Page 95)

Function library
Acceleration, deceleration, braking, stopping
7−24
L
EDB82MV752 EN 5.2
7.5 Acceleration, deceleration, braking, stopping
7.5.1 Setting of acceleration times, deceleration times and S−shaped ramps
Description
The acceleration times and deceleration times determine the controller response after a setpoint
change.
The ramp function generator for the main setpoint can be set linearly or S−shaped. The S−shape
selection of the main setpoint enables the drive to start and stop smoothly.
When operating with application I/O three additional deceleration times and acceleration times can
be activated via digital signals.
Codes for parameter setting
Code Possible settings IMPORTANT
No. Name Lenze Selection
C0012
uSEr
Acceleration time
main setpoint 5.00 0.00 {0.02 s} 1300.00 Reference: frequency change 0 Hz ...
C0011
·
Additional setpoint ð C0220
·
Acceleration times can be activated via
digital signals
ð C0101
^ 7−24
C0013
uSEr
Deceleration time
main setpoint 5.00 0.00 {0.02 s} 1300.00 Reference: frequency change
C0011 ... 0 Hz
·
Additional setpoint ð C0221
·
Deceleration times can be activated via
digital signals
ð C0103
^ 7−24
C0101
(A) Acceleration times
− main setpoint 0.00 {0.02 s} 1300.00 ^ 7−24
1 C0012 5.00 Binary coding of the digital signal sources
assigned to C0410/27 and C0410/28
determine the active time pair
2 T
ir
1 2.50
3 T
ir
2 0.50
4 T
ir
3 10.00
C0103
(A) Deceleration times
− main setpoint 0.00 {0.02 s} 1300.00 C0410/27 C0410/28
LOW LOW
HIGH LOW
LOW HIGH
HIGH HIGH
Active
C0012; C0013
T
ir
1; T
if
1
T
ir
2; T
if
2
T
ir
3; T
if
3
1 C0013 5.00
2 T
if
1 2.50
3 T
if
2 0.50
4 T
if
3 10.00
C0182* Integration time
S–ramps 0.00 0.00 {0.01 s} 50.00
·
C0182 = 0.00: Linear ramp function
generator operation
·
C0182 > 0.00: S−shaped ramp function
generator (smooth)
^ 7−24
C0220* Acceleration time −
additional setpoint
(PCTRL1−NADD) 5.00 0.00 {0.02 s} 1300.00 Main setpoint ð C0012 ^ 7−24
C0221* Deceleration time −
additional setpoint
(PCTRL1−NADD) 5.00 0.00 {0.02 s} 1300.00 Main setpoint ð C0013
Adjustment
·
The acceleration and deceleration times refer to an output frequency change from 0 Hz to the
max. output frequency set under C0011.
·
Calculate the times T
ir
and T
if
, which must be set under C0012 and C0013.
T
ir
+ t
ir
@ C0011
f
2
* f
1
t
ir
and t
if
are the times required for the change between f
1
and f
2
:
T
if
+ t
if
@ C0011
f
2
* f
1