Siemens MICROMASTER 430 Manual

4 MICROMASTER 430 functions
MICROMASTER 430 Operating Instructions
52 6SE6400-5AC00-0BP0
4.5 MICROMASTER 430 operating modes
4.5.1 Bypass Mode
Setting up an inverter bypass circuit
Mains
Isolator
Mechanical
interlock
Contactors
Relay outputs
Isolator
Figure 4-1 Bypass circuit
Function
Control of two locked contactors via relay outputs of MICROMASTER 430. This
circuit makes it possible to operate the motor via the inverter or directly via the
mains. The inverter is responsible for switching.
Switching is possible by the following means:
Ø error message from the inverter
Ø digital input
Ø inverter frequency
For further settings please refer to parameters list P1260 and following.
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Siemens MICROMASTER 430 Specifications

General

Power Range	7.5 kW to 250 kW
Voltage Range	380V to 480V
Frequency Range	0 Hz to 650 Hz
Protection Class	IP20
Input Frequency	47 Hz to 63 Hz
Digital Inputs	6
Cooling Method	Forced-air cooling
Communication	USS
Protection Features	Overvoltage, undervoltage, overcurrent, short-circuit, ground fault, overtemperature
Analog Inputs	2
Digital Outputs	3
Analog Outputs	2
Ambient Temperature	-10°C to +50°C
Control Type	Sensorless vector control