Siemens 400 V / 210...590 A Auxiliary power supply, precharging, Protective conductor connection

01.2004 Connecting-Up and Wiring

7.2.2Auxiliary power supply, precharging

X9 - external DC 24 V supply, precharging contactor control

5

4

3

2 1

The 5-pole terminal strip is used for connecting up a 24 V voltage supply and for connecting a precharging contactor.

The connections for the contactor control are floating.

The position of the terminal strip can be seen from the connection overviews.

Terminal	Designation	Meaning	Range
5	Precharge contr.	Precharging contactor control	AC 230 V
4	Precharge contr.	Precharging contactor control	1 kVA
3	n.c.	Not connected
2	0 V	Reference potential	0 V
1	+24 V (in)	24 V voltage supply	DC24 V ≤ 3.5 A

Connectable cross-section: 2.5 mm2 (AWG 12)

Table 7-4 Connection of external DC 24 V aux. voltage supply and precharging contactor control

Fan supply	AFE inverters of construction type J (compare above) require a supply
	cable cross-section of 2.5 mm2 (AWG 12). Connection to
	F101 and F102 (fan fuses).

7.2.3Protective conductor connection

	For AFE basic mains module, directly via the mounting surface and via
	PE screw.
	For AFE inverter via PE1 and PE2 and contact via the mounting
	surface.
NOTE
	It is important to ensure that the basic mains module and the AFE
	inverter are earthed at the same potential, use equipotential bonding if
	necessary.

Siemens AG 6SE7087-6CX86-2BA1	7-9
SIMOVERT MASTERDRIVES AFE Operating Instructions