Siemens SIMOVERT MASTERDRIVES Motion Control Instructions De Service page 201

08.2008
X6 – Braking
resistor and pre-
charging of the
capacitor module
CAUTION
DANGER
NOTICE
Siemens AG 6SE7087-7JP50
SIMOVERT MASTERDRIVES
The connection for the external braking resistor and the pre-charging of
the capacitor module is provided on the top of the unit.
Terminal
C´
G
H
D´
Connectable cross-section: 4 mm² (AWG 10)
Terminal D' is at the front when installed.
Table 7-4 Connection of the braking resistor and pre-charging of the capacitor
module
The motor cables must be dimensioned in accordance with VDE 298,
Part 2.
After installation of the connector, the shield of the motor cable must be
fixed to the shield plate through a large surface area.
The connector has to be screwed firmly to the housing (providing
resistance to vibration and protecting against being inadvertently
withdrawn).
♦ During operation, the full DC link voltage is always present at the
terminals for pre-charging the capacitor module.
♦ During pre-charging, the charging current of all connected capacitor
modules flows via the terminals.
♦ For reasons of protection, cables with 4 mm
connection X6!
Length of connecting cable between converter and external brake
resistor < 15 m.
Operating Instructions
Meaning
Pre-charging for capacitor module
Braking resistor
Braking resistor
Pre-charging for capacitor module
2
Connecting-up
Cu should be used at
7-7