User manual

STEP-UPS/24DC/24DC/3

PHOENIX CONTACT 24

11.3 Remote control (contact R1, R2)

Battery operation of the UPS can be switched on and off via

a signal to contacts R1/R2. Shutdown can take place during

mains operation or active battery operation.

Remote shutdown is deactivated

UPS in function (delivery state)

– The "R1" and "R2" terminal points are short circuited

(delivery with plug-in bridge) OR 24 V DC is present at

terminal point "R2".

– In the event of a voltage supply failure, the UPS switch-

es over to battery mode.

Figure 21 Remote shutdown is deactivated

11.4 Remote shutdown is activated

– Terminal points “R1” and “R2” are not short circuited

and 0V is applied at terminal point “R2”.

– In the event of a voltage supply failure, the UPS does

not switch over to battery mode. The device switches

off.

Figure 22 Remote shutdown active

Example 1

The remote shutdown can be used to suppress the buffering

of selective machine shutdowns. In doing so, the auxiliary

contact of the main switch is connected to R1 and R2 con-

nection terminal blocks.

Example 2

End the buffering at a specific time (e.g., following shutdown

of another machine part). Remote shutdown can be acti-

vated with a relay (N/C contact).

NOTE:

In the event of a supply voltage failure, the

UPS switches over to battery operation. The

load connected to the DC output is supplied

by the battery module.

OFF

+24 V DC

OFF