Description - Siemens simovert masterdrives Betriebsanleitung

05.2006
2

Description

Range of application Converters are power electronics components that feed three-phase
motors.
The converters can be operated from a 50 Hz or 60 Hz three-phase
system with a voltage in the range of the values specified on the rating
plate.
The line voltage is rectified and fed to the DC link.
The power section generates a three-phase system with a variable
output frequency between 0 Hz and a maximum of 400 Hz from the DC
link voltage via pulse width modulation (PWM).
The internal 24 V DC voltage is supplied through an integral power
supply unit.
The unit is controlled by the internal closed-loop control electronics
consisting of a microprocessor system. The functions are provided by
the unit software.
Operator control is via the PMU operator control panel, the user-friendly
OP1S operator control panel, the terminal strip or via a bus system. For
this purpose, the unit is provided with a number of interfaces and 6
slots for the use of optional boards.
HTL incremental encoders (TTL with SBP optional board) and analog
tachometers can be used as encoders on the motor.
Optional
boards
Pre-charging
U1/L1
V1/L2
W1/L3
C / L+
D / L -
PE1
Fig. 2-1
Siemens AG 6SE7087-6JK50
SIMOVERT MASTERDRIVES
Terminal strip
Control electronics
DC link
Rectifier
Circuit principle of the frequency converter
Operating Instructions
PMU
Serial
interface
U2/T1
Motor
V2/T2
connec-
W2/T3
tion
Inverter
PE2
Description
2-1