Shield M10U, User Manual

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Chapter 1 Installation
Shield M10U user manual 13
E
P
O
_
N
C
+
2
4
V
+24V
J4
EP
O
_
N
O
+
2
4
V
+24V
+24V
Fig.1- 8: Diagram of Input Dry Contactor for Remote EPO
Table.1- 4: Description of Input Dry Contactor for Remote EPO
Position Name Purpose
J4.1 EPO_NC EPO is activated when disconnecting fromJ4.2
J4.2 ＋ 24V +24V, connect the common terminal of NC
J4.3
＋
24V +24V, connect the common terminal of NO
J4.4 EPO_NO EPO is activated when shorting with J4.3
The EPO is triggered when shorting pin 3 and 4 or opening pin 1 and 2 of J4.
If an external emergency stop facility is required, it is connected via the reserved terminals of J4. The external emergency
stop facility needs to use shielded cables to connect to the normally open/closed remote stop switch between these two
pins. If this facility is not used, then pin 3 and pin 4 of J4 must be open, or pin 1 and pin 2 of J4 must be shorted.
Note
1. The emergency stop action within the UPS will shut down the rectifier, inverter and static bypass. However, it
does not internally disconnect the mains input power supply. To disconnect ALL power to the UPS, open the
upstream input circuit breaker(s) when the EPO is activated.
2. Pin 1 and 2 of J4 have been shorted before the UPS is delivered.
3. All auxiliary cables must be double insulated twisted cables with cross sectional area of 0.5mm2 ~ 1.5mm2 for
maximum connection length between 25m and 50m.
1.7.4 Generator Input Dry Contactor
J5 is the status interface for generator connection. Connect J5-2 with J5-1, it indicates that the generator has been
connected with the system. The interface diagram is shown in
fig.1-7 , and interface description is shown in table.1-5 .
J5
+24V
AUX_N.O.
AUX_N.O.
Gernerator
Fig.1- 9: Connection of Generator
Table.1- 5: Description of Status Interface and Connection of Generator
Position Name Purpose
J5.1 +24V In24V power supply
J5.2 GEN Connection status of generator
J5.3 GND Power ground
警告 危 险