Siemens SINAMICS G110

Commissioning 04/2005
SINAMICS G110 Operating Instructions
34 6SL3298-0AA11-0BP0
3.3 Basic Commissioning
The SINAMICS G110 is supplied with default parameter settings to cover the
following basic operation:
¾ The motor rating data; voltage, current and frequency data has already been
keyed into the inverter to ensure that the motor is compatible with the inverter.
(A Siemens standard motor is recommended).
¾ Linear V/f motor speed, controlled by an analogue potentiometer, or via the
RS485 connection using the USS variant.
¾ Maximum speed 3000 min
-1
corresponding to a 2-pole motor with 50 Hz (3600
min
-1
with 60 Hz); controllable using a potentiometer via the inverter’s analogue
input, or via the RS485 connection using the USS variant.
¾ Ramp-up time / Ramp-down time = 10 s.
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 motor default base frequency is accomplished using the DIP switch
which is provided on the front of the inverter to select the required base frequency.
A small screwdriver will be required to change the position of the DIP switches.
DIP switch 1 is used to change the
motor base frequency of the inverter,
by default it is in the position ‘50 Hz’.
See Figure 3-2. In the default
position (50 Hz) the output power will
be displayed in kW (if a BOP is fitted
to the inverter). In addition, all motor
related parameters will be calculated
using the 50 Hz setting.
To change the motor base frequency
to 60 Hz, DIP switch 1 must be set to
the position ‘60 Hz’.
The DIP switch must be set to the
required frequency before power is
applied to the inverter. On power up
the inverter will read the DIP switch
setting and calculate the following
motor related parameters:
¾ Rated Motor Frequency (P0310)
¾ Maximum Motor Frequency (P1082)
¾ Reference Frequency (P2000)
Figure 3-2 Motor Base Frequency DIP
Switch and Bus Termination