Regulus uREG, User Manual

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uREG User Manual
37
7.11. PS -0/ SS-0 MODULE (SLOTS 3 & 6)
The PS-0 p ower s upply module is a switching power unit module dedicated to
u REG
.
Each
u REG
unit can be equipped with one or two PS-0 module(s) (installed in slot #3 and/or
#6). For a configuration with two PS-0 modules, each of them can be powered by separate
guaranteed voltage (the other module serves as “hot standby”).
Rated supply voltage
220 V DC (or 230 V AC)
Admissible range of supply voltage changes: AC 88 ÷ 365 VDC (100 ÷ 260VAC)
Power input at 220 V DC <15 W (type 7W)
Undervoltage protective interlock threshold: > 375 V DC
Overvoltage interlock hysteresis: app. 12 VDC
In addition, the PS-0 module is equipped with:

3 unipolar digital inputs → terminals 8, 9, 10 ;

2 make-contact relays (1 pair) → terminals 5, 6 ;

switchable relay for handling the Alarm circuit → terminals 2, 3, 4 ;

internal input of power unit efficiency control;
and (optionally)

switchable relay for resetting the Alarm circuit → terminal 1
(by means of an external contact-type logic system).
Terminals on the PS-0 module are grouped into 2 slots:

3-pin MSTBA2.5/3-G strip (pitch: 5.00 mm, max 12 A, 250 V)
to apply auxiliary supply voltage and earthing;

11-pin MSTBA2.5/11-G strip (pitch: 5.00 mm, max 12 A, 250 V)
to handle inputs/outputs.
Fig. 7.11. Terminals of the PS-0 / SS-0 module.
CAUTION
For double power unit configurations (with hot standby), it is forbidden to replace the power unit module during
operation of the device! In order to replace a faulty module, disconnect auxiliary power completely for the time of
this action.