Ramp-Up Initial Rounding Time; Ramp-Up Final Rounding Time; Ramp-Down Initial Rounding Time - Siemens MICROMASTER 440 Parameter Manual

Issue 01/06
P1130[3]

Ramp-up initial rounding time

CStat: CUT
P-Group: SETPOINT
Defines initial rounding time in seconds as shown on the diagram below.
f
f
2
f
1
P1130
t
up
where:
f -
f
2 1
for
P1082
1
=
t
up
2
f -
f
2 1
for
P1082
=
t
down
Index:
P1130[0] : 1st. Drive data set (DDS)
P1130[1] : 2nd. Drive data set (DDS)
P1130[2] : 3rd. Drive data set (DDS)
Note:
- If short or zero ramp times (P1120, P1121 < P1130, P1131, P1132, P1133) are set, the total ramp up
time (t_up) or ramp down time (t_down) will not depend on P1130.
- See equations above for valid conditions to calculate t_up and t_down.
- Rounding times are recommended, since they prevent an abrupt response, thus avoiding detrimental
effects on the mechanics.
- Rounding times are not recommended when analog inputs are used, since they would result in
overshoot/undershoot in the inverter response.
P1131[3]

Ramp-up final rounding time

CStat: CUT
P-Group: SETPOINT
Defines rounding time at end of ramp-up as shown in P1130 (ramp-up initial rounding time).
Index:
P1131[0] : 1st. Drive data set (DDS)
P1131[1] : 2nd. Drive data set (DDS)
P1131[2] : 3rd. Drive data set (DDS)
Details:
See parameter P1130.
P1132[3]

Ramp-down initial rounding time

CStat: CUT
P-Group: SETPOINT
Defines rounding time at start of ramp-down as shown in P1130 (ramp-up initial rounding time).
Index:
P1132[0] : 1st. Drive data set (DDS)
P1132[1] : 2nd. Drive data set (DDS)
P1132[2] : 3rd. Drive data set (DDS)
Details:
See parameter P1130.
MICROMASTER 440 Parameter List
6SE6400-5BB00-0BP0
Datatype: Float
Active: first confirm
P1131 P1132
1
⋅ ≥ +
P1120 ( P1130 P1131)
2
f -
f
2 1
+ + ⋅
( P1130 P1131) P1120
P1082
1
⋅ ≥ +
P1121 ( P1132 P1133)
2
1 f -
f
2 1
+ + ⋅
( P1132 P1133)
2 P1082
Datatype: Float
Active: first confirm
Datatype: Float
Active: first confirm
Unit: s
QuickComm.: No
t
P1133
t
down
P1121
Unit: s
QuickComm.: No
Unit: s
QuickComm.: No
Parameter Description
Level
Min: 0.00
2
Def: 0.00
Max: 40.00
Level
Min: 0.00
2
Def: 0.00
Max: 40.00
Level
Min: 0.00
2
Def: 0.00
Max: 40.00
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