Connection 09.02
3-14 Siemens AG 6SE7087-6AK85-1AA0
Rectifier/Regenerating Unit Operating instructions
3.2 Power supply and main contactor
The power supply and main contactor control circuit are connected through five-pin connector X9 (sizes C and
E: on module A23, sizes H and K: at the bottom-left of the unit)
Single-core cables with conductor cross-sections of 0.2 to 2.5 mm
2
(AWG: 24 to 14) can be connected to X9 (finely stranded 1.5 mm
2
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∼
Size C: max. 3A∼ at p.f.≥0.4; max. making capacity 1500VA; with
switching voltage of 30 V DC, max 5A DC
Size E, H, K: max. 5A∼ at p.f.≥0.4; max. making capacity 3000VA;
with switching voltage of 30 V DC, max 8A DC
12 345
X9
P
M
PS
24V DC
230V AC
Main contactor
control
Figure 3.3 24 V DC and main contactor control
connections
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
X9-3 not connected (N.C.)
X9-4 Main contactor control circuit
X9-5 Main contactor control circuit
Table 3.8 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 Sizes C and E:
fused with fuse (F2) T3.2A/250V time-lag 5x20mm
(19198-T3,2A/250V Messrs. Wickmann-Werke GmbH or 0034.3998 FSD Messrs. Schurter)
Sizes H and K:
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)
NOTICE
The main contactor’s operating coil must be protected, for example, by RC elements (Chapter 9). See also
Warnings in Chapter 3.1 after Table 3.1 with regard to isolating transformer feed-in.
AoteWell Automation Sales Team
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