Power Supply User Manual

8.4 EPO (Emergency Power Off)

All the devices in the PROTECT D. series are equipped with a

connection that allows the immediate shutdown of the UPS

output to deactivate any devices connected and does not follow

the control software shutdown process.

Note:

Once the emergency power off has been

activated, the UPS outputs are voltage-free. The

UPS will not return to normal operation until the

emergency power off has been confirmed/reset

and a manual reboot performed by activating the

“UPS On” switch once again.

To install the Emergency Power Off, proceed as follows:

1. Check to see that the UPS is switched off and switch

it off if necessary.

2. Remove the plug from the EPO insert on the rear

panel of the UPS by unscrewing the 2 outer screws

(also see pg. 31 no. 7).

3. Connect a potential-free opener contact (able to

manage a load of at least 60 Vdc/ 30 Vac 20 mA)

with the pins of the plug.

4. To do so, use a flexible wire with a diameter of min.

0.5 mm

or max. 2.5 mm

. Replace the plug and lock

the insert into place in the base by tightening the

outer screws.

Note:

If you want to use an open contac

rather than a closed contact, go to

“Settings” in the main menu and set

“EPO operation” to “normally open”.

The Emergency Power Off installed only switches of

the UPS voltage. This is done electronically and is

not the same as an EMERGENCY STOP system

corresponding to DIN EN ISO 13850.