Siemens 440 - Manual (Page 132)

Parameter Description Issue 01/06
MICROMASTER 440 Parameter List
132 6SE6400-5BB00-0BP0
P1121[3] Ramp-down time Min: 0.00
CStat: CUT Datatype: Float Unit: s Def: 10.00
P-Group: SETPOINT Active: first confirm QuickComm.: Yes Max: 650.00
Time taken for motor to decelerate from maximum motor frequency (P1082) down to standstill when no
rounding is used.
f (Hz)
t (s)
f max
(P1082)
P1121
P1082
f f
t
1 2
down
⋅
−
=
f 2
f
1
P1121
t
down
Index:
P1121[0] : 1st. Drive data set (DDS)
P1121[1] : 2nd. Drive data set (DDS)
P1121[2] : 3rd. Drive data set (DDS)
Notice:
Setting the ramp-down time too short can cause the inverter to trip (overcurrent (F0001) / overvoltage
(F0002)).
Ramp times will be used as follows:
-
P1060 / P1061 : JOG mode is active
- P1120 / P1121 : Normal mode (ON/OFF) is active
- P1060 / P1061 : Normal mode (ON/OFF) and P1124 is active
P1124[3] BI: Enable JOG ramp times Min: 0:0
CStat: CT Datatype: U32 Unit: - Def: 0:0
P-Group: COMMANDS Active: first confirm QuickComm.: No Max: 4000:0
Defines source for switching between jog ramp times (P1060, P1061) and normal ramp times (P1120,
P1121) as applied to the RFG. This parameter is valid for normal mode (ON/OFF) only.
Index:
P1124[0] : 1st. Command data set (CDS)
P1124[1] : 2nd. Command data set (CDS)
P1124[2] : 3rd. Command data set (CDS)
Common Settings:
722.0 = Digital input 1 (requires P0701 to be set to 99, BICO)
722.1 = Digital input 2 (requires P0702 to be set to 99, BICO)
722.2 = Digital input 3 (requires P0703 to be set to 99, BICO)
722.3 = Digital input 4 (requires P0704 to be set to 99, BICO)
722.4 = Digital input 5 (requires P0705 to be set to 99, BICO)
722.5 = Digital input 6 (requires P0706 to be set to 99, BICO)
Notice:
P1124 does not have any impact when JOG mode is selected. In this case, jog ramp times (P1060, P1061)
will be used all the time.
Ramp times will be used as follows:
-
P1060 / P1061 : JOG mode is active
- P1120 / P1121 : Normal mode (ON/OFF) is active
- P1060 / P1061 : Normal mode (ON/OFF) and P1124 is active
Level
1
Level
3