Emotron VS10 - Example: Selective Control of Several Motors with One Inverter

10.9.1. Example: Selective control of several motors with one inverter
A typical application for the parameter change-over is an application/machine in which
several axes must be triggered successively but a simultaneous operation of several
motors is not required. In this case, one and the same inverter can trigger the motors in
succession. Advantages of this solution are the reduced amount of components (inverters)
and thus a reduced energy consumption.
Principle:
• The motor to be currently controlled is connected to the inverter via motor contactors.
(The contactor system can, for instance, be controlled via the digital outputs of the
inverter.)
• At the same time, the motor and control settings suitable for motor are activated in the
inverter by means of parameter change-over.
Functions for parameter change-over  407
① Motor data change-over (via the "parameter change-over" function)
② Motor change-over (e.g. via motor contactors)
The following table lists all parameters that require different settings for the four motors:
#
Parameter
Name
Setting
M1
M2
M3
M4
1
0x2B00 (P302.00)
V/f characteristic shape
Linear [0]
Square-law [1]
Linear [0]
Linear [0]
2
0x2B01:002 (P303.02)
Base frequency
60 Hz
60 Hz
60 Hz
50 Hz
3 0x2D4B:001 (P308.01) Maximum utilisation [60 s] 150 % 120 % 150 % 150 %
4
0x2B12:001 (P316.01)
Fixed boost
2.5 %
0.0 %
4.0 %
2.0 %
5
0x2C01:004 (P320.04)
Rated speed
1745
3450
1750
1450
6
0x2C01:005 (P320.05)
Rated frequency
60.0 Hz
60.0 Hz
60.0 Hz
50.0 Hz
7
0x2C01:006 (P320.06)
Rated power
0.75 kW
0.75 kW
0.75 kW
1.50 kW
8 0x2C01:007 (P320.07) Rated voltage 480 V 480 V 480 V 400 V
9
0x6075 (P323.00)
Motor rated current
2,200 A
2,100 A
2,200 A
3,500 A
10
0x6073 (P324.00)
Max current
200.0 %
150.0 %
200.0 %
200.0 %