Siemens simovert masterdrives 6SE70 Serie Instructions De Service page 43

12.98
X3 - DC link bus
module
X7 - Pre-charging
NOTES
Siemens AG 6SE7087-7NP87-2DD0
SIMOVERT MASTERDRIVES
The DC link bus module is used to transfer energy between the
capacitor module and the connected inverters.
Bar Designation
3 PE3
2 D / L-
1 C / L+
Connectable cross-section: "Electro-plated copper" 3x10 mm, rounded
off according to DIN 46433.
Bar 1 is at the front when installed.
Table 5-1 DC link bus module
The connections are used for pre-charging the buffer capacitors.
The two remaining free contacts are used for looping the pre-charging
cable to other capacitor modules.
Terminal Meaning
C' + Terminal of pre-charging
C' + Terminal of pre-charging
D' - Terminal of pre-charging
D' - Terminal of pre-charging
Connectable cross-section: 4 mm² (AWG 10)
Terminal D' is at the front when installed.
Table 5-2 Pre-charging connection
♦ 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 must be used at
connection X7!
Operating Instructions
Meaning
Protective conductor connection
DC link voltage -
DC link voltage +
Range
DC 510 V - 650 V
DC 510 V - 650 V
DC 510 V - 650 V
DC 510 V - 650 V
Connecting-up
Range
DC 510 - 650 V
DC 510 - 650 V
5-3