05.2005 Connecting-up
Siemens AG 6SE7087-2NP85-0AA0
SIMOVERT MASTERDRIVES Operating Instructions 7-5
The purpose of the DC link bus module is to supply the connected
inverters with the generated direct voltage.
Bar Designation Meaning Range
3 PE3 Protective conductor connection
2 D / L- DC link voltage - DC 510 - 650 V
1 C / L+ DC link voltage + DC 510 - 650 V
Connectable cross-section: “Electro-plated copper" 3x10 mm, rounded
off according to DIN 46433.
Bar 1 is at the front when installed.
Table 7-2 DC link bus module
The connection for the external braking resistor and the pre-charging of
the capacitor module is provided on the top of the unit.
Terminal Meaning
C´ Pre-charging for capacitor module
G Braking resistor
H Braking resistor
D´ Pre-charging for capacitor module
Connectable cross-section: 4 mm² (AWG 10)
Terminal D’ is at the front when installed.
Table 7-3 Connection of the braking resistor and pre-charging of the capacitor
module
The connector must be firmly screwed onto the housing to provide a
reliable connection.
The thermostatic switch of the braking resistor must be integrated in the
de-energization circuit of the main contactor.
♦ 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 mm² Cu should be used at
connection X6!
X3 - DC link bus
module
X6 – Braking
resistor and pre-
charging of the
capacitor module
GHD'C'
CAUTION
DANGER
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