Connection Of "Media Contacts 11" Standard Auxiliary Circuits - MGE UPS Systems Galaxy PW 30 kVA Installation Manual

Connection of "Media Contacts 11" standard auxiliary circuits

See figure 26 below for information on
connecting the auxiliary circuits to the
three connectors on the "Media
Contacts 11" board in the Galaxy PW
UPS cubicle.
See the position of this board, marked
"O" in figures 12 to 14.
recommended cable cross-section:
1 mm 2 ;
the male connectors that fit the female
connectors on the board (XR2 to XR5)
are supplied;
the contacts are volt-free and are
shown in the diagram under the
following conditions: UPS on, contact at
rest;
contact breaking capacity: 250 V, 5 A.
Connection to battery
circuit breaker "QF1"
connect the cable from connector
XR3 (pins 2 to 8) on the "Media
Contacts 11" board in the UPS cubicle
to connector XR1 in the battery cubicle
containing battery circuit breaker QF1.
Emergency power off
The UPS emergency shutdown function
is generally wired to a "mushroom-
head" type emergency-off button.
Important:
In the case of a complex installation
with a number of units, there should be
only one emergency shutdown
pushbutton and this pushbutton must
interrupt all the active conductors of all
the units.
For the same reason, it is essential for
the pushbutton to open the upstream
protective circuit breakers on the
normal and bypass inputs.
Each type of unit (single UPS, parallel
UPS, frequency converter) must have
an independent, volt-free contact
connected to the emergency shutdown
pushbutton. This pushbutton must
therefore have as many contacts as
there are units in the installation, as
well as the contact or contacts required
to open the upstream protective circuit
breakers on the normal and bypass
inputs. The emergency shutdown
pushbutton turns off the rectifier/
chargers and inverters, opens the
battery circuit breakers and activates a
contact on the "Media Contacts 11"
board (terminals 1 to 3 on connector
XR4). The emergency shutdown signal
will be cleared when the emergency
shutdown pushbutton contact has been
reset.
Media Contacts 11" board
12 1 10 1
XR2 XR3
XR2 connector input or output signals:
12
earth
NC emergency-shutdown button contact
11
NC (jumper if not used)
10
NC 9
8
connection with optional electronic board for
7
measuring battery temperature
–12 V 6
power supply
+12 V 5
temperature 4
3
signal
2
1
XR3 connector input or output signals:
+12 V
10
free auxiliary contact
9
–12 V
8
24V CC 7
NC
6
5
+12V
QF1 battery circuit-breaker opening command
4
3
2
NC
1
XR4 connector output signals:
10
maintenance position
9
8
7
general alarm
6
5
4 NC
3
complete system shutdown
2
1
XR5 connector output signals:
NC
10
9
load on inverter
8
7
6
load on battery
5
4
3
low-battery shutdown warning
2
1
Fig. 26
Installation (cont.)
(qualified personnel only)
10 1 10 1
XR4 XR5
and/or harmonics filter temperature fault
battery-room ventilation fault
12
XR2
1
10
XR3
1
10
XR4
1
10
XR5
1
XR1
harmonic-filter cubicle
XR1 terminal block
thermal monitoring
2
of the
1
harmonics-filter
inductor
battery cubicle
XR1 terminal block
QF1 battery
2
circuit-breaker
1
closed
QF1 battery
4
circuit-breaker
3
opening command
- 23
E-51028231XU/BH