Alpha CFR 15K Instrukcja Operatora Pobierz pdf (Strona 30)

2 Installation

2.8 Connecting the External Alarm Port

An external alarm panel can be connected to the external alarm port (Figure 2.4). The port’s

contacts are rated at 30 VDC at 1 Amp.

An Emergency Power Off (EPO) switch is created by wiring a switch to Pins 7 and 8.

• Pushing the EPO switch automatically switches off the unit’s battery circuit breaker.

• The contacts must be shorted for at least 1.5 seconds with unit shutdown about 2 seconds

after the shorting starts.

• The switch must be a SPST, N.O. type and be electrically isolated (up to 1500 VAC

isolation is recommended). The connecting cable can be twisted or shielded wire not

more than 100 ft. (30 m) long.

CAUTION: The EPO switch does not disconnect the utility line. Switch off the circuit

breaker providing line power to the unit.

Figure 2.4

Wiring the External Alarm Port

87654321

EPO

Circuit

N.O. EPO Switch

N.C. Line

Present

N.C.

Battery OK

N.O. Line

Failure

N.O. Low

Battery Warning

Contact Rating:

30 VDC @ 1 Amp

UPS Internal

UPS External

RJ-45

Connector

(8-Pin Type)

1 2 ... 25 26 27 28 29 30 31 32 33 34 35 ... 86 87

Brak uwag

Alpha CFR 15K Instrukcja Operatora Strona 30