Description; Range Of Application - Siemens SIMOVERT MASTERDRIVES Betriebsanleitung

05.2003
2

Description

Range of application

Optional
boards
U1/L1
V1/L2
W1/L3
PE1
Rectifier
C / L+
D / L -
PE3
Siemens AG 6SE7087-6JP60
SIMOVERT MASTERDRIVES
The converters are power electronics components for feeding three-
phase motors.
They can be operated from a three-phase system with a voltage
between 380 V and 480 V and a frequency of 50/60 Hz.
The line voltage from the system is rectified and fed into the DC link.
The power section enables a three-phase system with a variable output
frequency between 0 Hz and 500 Hz maximum to be generated from
the DC link direct voltage with the pulse width modulation method
(PWM).
The internal DC 24 V voltage is supplied through an integral power
supply unit.
The unit is controlled by the internal control electronics which consists
of a microprocessor system. The functions are provided by the unit
software.
Operator control is effected 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 has a number of interfaces and
two slots for the use of optional boards.
Pulse encoders can be used as motor-specific encoders.
Terminal strip
Control electronics
==
Precharging
Fig. 2-1 Circuit principle of the frequency converter
Operating Instructions
Internal
24 V
power
==
supply
DC link Inverter
Brake chopper
Description
PMU
Serial
interface
-X9
external DC 24 V
supply
U2/T1
Motor
V2/T2
connection
W2/T3
PE2
G
Braking
resistor
H
2-1