Siel Green Point 6:20KVA Specifications download pdf (Page 22)

SP121E Rev. 000 Siel S.p.A. Pag. 22 of 42

Issued date: 2005-05-06

GREEN POINT

8 - INTERFACING

8.1 Remote signals and command connectors

The following connectors are situated on the rear. Refer to the “VIEWS OF THE UPS” section for details.

1 x EPO (emergency power off ) connection point;

1 x DB15 female REMOTE;

1 x DB9 male RS232-1;

1 x DB9 female RS232-2;

1 x Aux Slot for SNMP card etc.

8.2 EPO (Emergency Power Off command)

The EPO operates a normally closed system and by opening the link will force the UPS into an

emergency power off command.

Using this input, the UPS can be shut down remotely in the event of an emergency by pressing a single

emergency button. The EPO switches the UPS off which will remain in this state until reset.

8.3 DB15 Female “Remote”

This connector consists of:

1 x 12Vdc 80mA(max) power supply

3 x voltage-free alarm contacts

2 x Inverter and UPS shutdown commands

The pin layout is as follows ( see figure ):

BATTERY LOW = END OF DISCHARGE PRE-ALARM (the low battery

warning time can be configured )

BATTERY DISCHARGING = BATTERY DISCHARGING (mains failure)

BY-PASS / FAULT = BY-PASS/FAULT

The position of the contacts shown is during a non alarm state

(NORMAL OPERATION).

The contact rating is 42V @ 0.5A(max).

REMOTE COMMANDS

2 commands are available:

BYPASS with INVERTER STOP– by connecting pin 8 to pin 15 (for at least 2 seconds) used for external

bypass commands.

TOTAL STOP – by connecting pin 7 to pin 15 (for at least 2 seconds) the system will shut down.

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Siel Green Point 6:20KVA Specifications Page 22