Siemens 440 - Manual (Page 234)

Parameter Description Issue 01/06
MICROMASTER 440 Parameter List
234 6SE6400-5BB00-0BP0
P2257 Ramp-up time for PID setpoint Min: 0.00
CStat: CUT Datatype: Float Unit: s Def: 1.00
P-Group: TECH Active: Immediately QuickComm.: No Max: 650.00
Sets the ramp-up time for the PID setpoint.
PID Setpoint (%)
0
100 %
t (s)
x
2
x
1
P2257
t
12 P2257
% 100
x x
t
1 2
12
⋅
−
=
Dependency:
P2200 = 1 (PID control is enabled) disables normal ramp-up time (P1120).
PID ramp time effective only on PID setpoint and only active
-
when PID setpoint is changed or
- when RUN command is given.
Notice:
Setting the ramp-up time too short may cause the inverter to trip, on overcurrent for example.
P2258 Ramp-down time for PID setpoint Min: 0.00
CStat: CUT Datatype: Float Unit: s Def: 1.00
P-Group: TECH Active: Immediately QuickComm.: No Max: 650.00
Sets ramp-down time for PID setpoint.
PID Setpoint (%)
0
100 %
t (s)
x
2
x
1
P2258
t
21 P2258
% 100
x x
t
2 1
21
⋅
−
=
Dependency:
- P2200 = 1 (PID control is enabled) disables normal ramp-up time (P1120).
- PID setpoint ramp effective only on PID setpoint changes.
- P1121 (ramp-down time) and P1135 (OFF3 ramp-down time) define the ramp times used after OFF1
and OFF3 respectively.
Notice:
Setting the ramp-down time too short can cause the inverter to trip on overvoltage (F0002) / overcurrent
(F0001).
r2260 CO: PID setpoint after PID-RFG Min: -
Datatype: Float Unit: % Def: -
P-Group: TECH Max: -
Displays total active PID setpoint after PID-RFG in [%].
Note:
r2260 = 100 % corresponds to 4000 hex
Level
2
Level
2
Level
2