Power Supply And Main Contactor - Siemens SIMOVERT Master Drives 6SE70 Betriebsanleitung

09.02
3.2

Power supply and main contactor

The power supply and main contactor control circuit are connected through five-pin connector X9 (at the
bottom-left of the unit).
Single-core cables with conductor cross-sections of 0.2 to 2.5 mm
(AWG: 24 to 14) can be connected to X9 (finely stranded 1.5 mm
with core end ferrules).
The main contactor is driven over isolated contacts X9.4 and X9.5.
Technical specifications of main contact control circuit: 230V∼
max. 5A∼ at p.f.≥0.4; max. making capacity 3000VA;
with switching voltage of 30 V DC, max 8A DC
Terminal Function description
X9-1 DC +24V (tolerance range 20V - 30V) max. current consumption 2A at +24V
max. current consumption without options:
1A for basic unit (master)
0.3A for parallel unit (slave)
X9-2 Reference potential for DC X9-1
not connected (N.C.)
X9-3
Main contactor control circuit
X9-4
Main contactor control circuit
X9-5
Table 3.5 Connector X9 pin assignments for auxiliary power supply and main contactor control
Terminal X9.1 fused with fuse (F1) T2A/250V time-lag 5x20mm
(19198-T2A/250V Messrs. Wickmann-Werke GmbH or 0034.3993 FSD Messrs. Schurter)
and for parallel unit via connector x27 (for size K):
fused with fuse (F5) T2A/250V time-lag 5x20mm
(19198-T2A/250V Messrs. Wickmann-Werke GmbH or 0034.3993 FSD Messrs. Schurter)
Terminal X9.2 fused with fuse (F2) T7A/250V time-lag 6.3x32mm (¼" x 1¼")
(19343-T7A/250V Messrs. Wickmann-Werke GmbH and/or 0034.5243 FST Messrs. Schurter)
The main contactor's operating coil must be protected, for example, by RC elements.
See also Warnings in Chapter 3.1 after Table 3.1 with regard to isolating transformer feed-in..
Siemens AG 6SE7087-6AK85-0AA0
Common Rectifier Operating instructions
2
2
Figure 3.3
NOTICE
PS Main contactor
control
24V DC
M
P
1 2 3 4 5
X9
230V AC
24 V DC and main contactor
control connections
ENGLISH
Connection
3-7