Control Connections - Siemens SIMOVERT MASTERDRIVES Motion Control Instructions De Service

Connecting-up
7.2

Control connections

Standard
connections
WARNING
WARNING
CAUTION
7-12
The basic version of the unit is provided with the following control
connections:
♦ external 24V supply
♦ 24 V voltage output, USS bus connection (RS485)
♦ serial interface for PC or OP1S
♦ control terminal strip.
Before the control cables and encoder cables are connected or
disconnected, the unit must be disconnected from the supply (24 V
electronic power supply and DC link/line voltage)!
If this measure is not observed, this can result in defects on the
encoder. A defective encoder can cause uncontrolled axis movements.
The external 24 V infeed and all circuits connected to the control
terminals must meet the requirements for safety separation as
stipulated in EN 50178 (PELV circuit = Protective Extra Low Voltage).
The external 24 V supply must be protected by an m.c.b. in order to
prevent the overloading of printed conductors / components in the
event of a device defect (e.g. a short circuit in the control electronics or
a wiring fault) (e.g. m.c.b. 6 A, tripping characteristic C; Siemens 5SX2
.
106-7)
(For wiring information, see supplementary sheet supplied with rectifier
unit or converter.)
6SE7087-7JP50
Operating Instructions SIMOVERT MASTERDRIVES
08.2008
Siemens AG