Auxiliary Power Supply - Satec expertmeter EM720 Installation Manual

Auxiliary Power Supply

L ow D C A ux i lia r y Po w e r Sup p ly
EM720
The can be equipped with additional power supply to redundant the built-in power supply
(Auxiliary Power Supply –
APS
The DC can be plugged-in any
APS
The module is connected to an external DC Voltage source with a three-pin width pluggable
terminal block, as shown in figure 20, see
18
APS
), without need of Battery backup Power Supply (
EM720
Technical Specification
APS
The DC module provide two indication GREEN LEDS:
"VIN" GREEN LED: is "ON" continuously when DC voltage is applied to the terminals
"VOUT" GREEN LED:
F i g u r e 2 1 : A u x i l i a r y DC P o w e r S up p l y C o n n e c t i o n
module slots.
for DC Voltage Inputs requirements
is "OFF" if Measurement AC Voltages inputs are applied to the
is "ON" if Measurement AC Voltages inputs are missing
BPS
).
Chapter 2 Installation
EM720