Setting The Voltage Boost - Siemens SINAMICS V20 Series Operating Instructions Manual

Commissioning
5.6 Function commissioning
Setting parameters
Parameter Function
P1055[0...2] BI: Enable JOG right
P1056[0...2] BI: Enable JOG left
P1057 JOG enable
P1058[0...2] JOG frequency [Hz]
P1059[0...2] JOG frequency left [Hz]
P1060[0...2] JOG ramp-up time [s]
P1061[0...2] JOG ramp-down time [s]
5.6.2.3

Setting the voltage boost

Functionality
For low output frequencies, the V/f characteristics only give a low output voltage. The ohmic
resistances of the stator winding play a role at low frequencies, which are neglected when
determining the motor flux in V/f control. This means that the output voltage can be too low in
order to:
● implement the magnetization of the asynchronous motor
● hold the load
● overcome losses in the system.
The output voltage can be increased (boosted) in the inverter using the parameters as
shown in the table below.
64
Setting
This parameter defines source of JOG right when P0719 = 0
(Auto selection of command / setpoint source).
Factory default: 19.8
This parameter defines source of JOG left when P0719 = 0
(Auto selection of command / setpoint source).
Factory default: 0
= 1: Jogging is enabled (default)
This parameter determines the frequency at which the inverter
will run while jogging is active.
Range: 0.00 ... 599.00 (factory default: 5.00)
This parameter determines the frequency at which the inverter
will run while JOG left is selected.
Range: 0.00 ... 599.00 (factory default: 5.00)
This parameter sets jog ramp-up time which is used while
jogging is active.
Range: 0.00 ... 650.00 (factory default: 10.00)
This parameter sets jog ramp-down time which is used while
jogging is active.
Range: 0.00 ... 650.00 (factory default: 10.00)
Operating Instructions, 07/2012, A5E03728167
SINAMICS V20 Inverter