APC Smart-UPS VT Installation Manual download pdf (Page 46)

Electrical Installation – Communication Wiring to EPO and Optional Equipment

38 Smart-UPS® VT 10-40kVA 400V Site Preparation and Installation Manual 990-2283

Pin connections J106 for Battery Temperature Sensor, APC Maintenance Bypass

Panel, and Generator Control wiring

Pins 1 through 4 are for battery measurement (only through external temperature sensor).

Pins 5 & 6 are for external maintenance bypass Q3. When Q3 is closed, signals are fed back to the

UPS controller.

Pins 7 & 8 are for external charge control. When 7 & 8 are closed, the UPS charges batteries with a

pre-defined percentage (0-100%) of the maximum charging power. To be used in generator

applications, or if special codes require control of charging.

See “Connecting the APC Battery Temperature Sensor” on page 42.

Note

When connecting the Q3 auxiliary signal, use gold-plated N/C auxiliary switch on Q3.

J106

switch

Charging control switch

J1 (Temperature Sensor)

1 2 ... 41 42 43 44 45 46 47 48 49 50 51 ... 59 60

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APC Smart-UPS VT Installation Manual Page 46