Siemens MICROMASTER 420 - Page 71

5. SYSTEM PARAMETERS International English
MICROMASTER 420 Operating Instructions 71
6SE6400-5AA00-0BP0
Parameter
Number
Parameter Name
Min
Max
[Default]
Units
♦
♦♦
♦P0003 User
Access Level
♦
♦♦
♦P0004 Setting
♦
♦♦
♦Changeable
♦
♦♦
♦Status
P1061 JOG ramp-down time
Sets ramp-down time (s). This is the time used while jogging or when the function “use jog
ramp times” is activated.
f (Hz)
0
f max
(P1082)
Jog Ramp Down Time P1061
time (s)
0
650
[10]
s
2
10
‘•’
Min. frequencyP1080
Sets minimum motor frequency (Hz) at which the motor will run irrespective of the
frequency setpoint.
The value set here is valid for both clockwise and anti-clockwise rotation.
Note
Under certain conditions (e.g. ramping, current limiting), the inverter can run below the
minimum frequency.
0
650
[0]
Hz
1
10
‘•’
Max. frequencyP1082
Sets maximum motor frequency (Hz) at which the motor will run irrespective of the
frequency setpoint.
The value set here is valid for both clockwise and anti-clockwise rotation.
Notes
There are mechanical limitations to the maximum speed at which a motor can run. In
general, the maximum motor frequency should not exceed 3 x the nominal rating plate
motor frequency.
The maximum frequency can be exceeded if either of the following is active:
Slip compensation (f
max
+ f
slip comp max
)
or
Flying restart (f
max
+ f
slip nom
)
0
650
[50]
Hz
1
10