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6.4.- Connection interface to optocouplers and RS-232.
• The interface enables a dialogue between the UPS and the exterior world. Through optocouplers it receives
information on: State of the Network and End of Autonomy. The same connector (3) holds the signals of the RS-232
and a "Shutdown" input that allows the UPS to be able to be turned off when we have a voltage of between 5 and
12 V for more than 500 ms., as long as the mains is absent.
Pin 2.
Mains failure. (*)
Pin 4.
Optos common. (*)
Pin 5.
End of autonomy (approx. <2 min). (*)
Pin 6.
+Shutdown and RxD RS-232 (to TxD of the PC).
Pin 7.
Shutdown common and RS-232.
Pin 9.
TxD RS-232 (to RxD of the PC).
(*) Current and maximum voltage 48 V DC 30 mA non inductive.
• The UPS is supplied with the connection cable and
"UPSMON" software to be installed by the user. Once
the physical connection has been made with the cable between the UPS and the computer, and the software has
been installed, the working system will be intelligent, giving the full protection capacity of the critical loads to be
supplied when the whole installation is working.
Note: The connection of the interface between the UPS and the computer is not implicit to the working of both
units. In the event of making the connection, use only the cable supplied along with the UPS.
6.5.- Software.
6.5.1.- Basic structure for installing the "UPSMON" software.
• PC with a free serial port (COM1 to COM4).
6.5.2.- Hardware Installation.
• Turn off the PC and the monitor.
• Check that the basic structure is at least as indicated in section 6.5.1.
• Connect the cable between the PC (SUB-D9 female) and the UPS (SUB-D9 male). If the serial port in the PC is
a male SUB-D25, use a female SUB-D25 to male SUB-D9 adapter.
• Connect the PC (load) to the UPS, respecting the instructions indicated. Start the PC and the monitor.
• Start the UPS following the instructions in chapter 7. The UPS can be used as a central start – stop unit.
• Before communications can be established between the UPS and the computer, the Config./COM serial port must
be selected and the COM port to which the UPS has been connected. The indicators of the panel of the
"UPSMON" will be visualised, and the parameters and conditions of the UPS will be shown in real time.
1
6
5
9
Fig. 4. Connector (3) interface SUB D9.
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6
9
1
5
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