Siemens SINAMICS G110, Operating Instructions Manual

Page: 45 / 92

04/2005 Commissioning
SINAMICS G110 Operating Instructions
6SL3298-0AA11-0BP0
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3.4.3 Changing the Motor Base Frequency
The default motor base frequency of the SINAMICS G110 inverter is 50 Hz. In
some parts of the world motors are designed for a base frequency of 60 Hz.
Changing the inverter motor base frequency is accomplished using three methods:
¾
A DIP switch is provided on the front of the inverter to select the required base
frequency (see Section 3.3 on page 34).
¾
Parameter P0100 can be modified as described below.
¾
Manually entering the motor data from the motor rating label.
WARNINGS
¾
After a power cycle the inverter will read the base frequency from the DIP
switch setting. This will overwrite the previous settings of P0100.
¾
If P0100 is set to 0 or 1 then the DIP switch setting will be read and take priority
over the software settings. However, if P0100 is set to 2, this value will take
priority over the DIP switch, which may lead to unstable operation of the inverter
should a 50 Hz frequency actually be required.
Changing the motor base frequency via DIP switch
Changing the motor default base frequency can be accomplished by using the DIP
switch which is provided on the front of the inverter as explained in Section 3.3 on
page 34.
Setting the motor base frequency parameter (P0100)
The motor base frequency can be set by setting parameter P0100 as follows:
¾
P0100 = 0 (kW, 50 Hz) default
¾
P0100 = 1 (hp, 60 Hz)
¾
P0100 = 2 (kW, 60 Hz)
To change P0100 using the software the following procedure should be performed:
1. Stop the inverter.
2. Change P0010 to 1 (Commissioning Mode).
3. Change P0100 to the required setting.
4. Change P3900 to 1.
Changing P0100 will reset all the rated motor parameters as well as other
parameters that depend upon the rated motor parameters as previously stated.