Description - Siemens SIMOVERT MASTERDRIVES Motion Control Instructions De Service

05.2004
2

Description

Range of application
Optional
boards
U1/L1
V1/L2
W1/L3
PE1
Rectifier
C / L+
D / L -
PE3
Siemens AG 6SE7087-7JP50
SIMOVERT MASTERDRIVES
The frequency converter is a power electronics component for feeding
highly dynamic three-phase drives in the output range from 0,55 kW to
15 kW.
The unit 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 three-phase current from the system is rectified and fed into the
DC link.
The inverter enables a three-phase system with a variable output
frequency between 0 Hz and 400 Hz 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 closed-loop control electronics,
consisting of a microprocessor and a digital signal processor (DSP).
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 the
bus system. For this purpose, the unit has a number of interfaces and
three slots for the use of optional boards.
Resolvers, encoders, pulse encoders and multiturn encoders can be
used as encoders on the motor.
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 (X534 at
Small with K80)
external DC 24 V
incoming supply
U2/T1
Motor
V2/T2
connection
W2/T3
PE2
G
Braking
resistor
H
2-1