Alpha Technologies FXM2000 Specifications download pdf (Page 18)

017-230-B0 Rev 0810

5.2 Wiring the External Batteries

WARNING!

The batteries must be installed by qualied personnel trained in the safe use of high-

energy power supplies and their batteries. Refer to the safety section in this manual.

• Use new batteries when installing a new unit. Verify that all batteries are the same type with identical date

codes.

• For the FXM 650-24, the battery string is 24 VDC. For the FXM 650-48/1100/2000, the battery string is 48

VDC.

• If you are making your own battery wiring harness, use at least 10 AWG (for FXM 650/1100) or 8 AWG (FXM

2000) wires.

• The battery return connection is to be treated as an Isolated DC return (DC-I) as deﬁned in GR-1089-CORE.

5.2.1 Procedure

1. For FXM 650-48/1100/2000 (48 V battery string), number the batteries from 1 to 4 with labels or tape. For

FXM 650-24 (24 V battery string), number the batteries from 1 to 2 as shown in the ﬁgure below.

Figure 8 — External Battery Wiring (for 48 VDC string (top) and 24 VDC string)

Tape the battery temper-

ature sensor to the side

of either battery #2 or #3.

Battery #4 Battery #3 Battery #2 Battery #1

To positive terminal

To negative terminal

Optional in-line fuse

Tape the battery temperature

sensor to the side of either bat-

tery #2 or #1.

Battery #2 Battery #1

To positive terminal

To negative terminal

Optional in-line fuse

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 87 88

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Alpha Technologies FXM2000 Specifications Page 18