Parameter Description

Issue 01/06

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

Level

1

Time taken for motor to decelerate from maximum motor frequency (P1082) down to standstill when no rounding is used.

f (Hz)

f max

 

(P1082)

 

f 2

 

f1

t (s)

tdown

P1121

 

tdown =

 

f 2

f1

 

P1121

 

P1082

 

 

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

Level

3

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

132

MICROMASTER 440 Parameter List

6SE6400-5BB00-0BP0

Page 132
Image 132
Siemens 440 manual P11213 Ramp-down time, P11243 BI Enable JOG ramp times, 132