Contact Message Description
1 BATCB When battery breaker or switch is disconnected, show an alarm(46).
2 GENERATOR DETECTION Generator input, give a sign to ups to adapting.
Table 3.1 Definition
To activate one of these functions it is necessary to connect the “IN” port with the “OP” port and to supply power to this
circuit. It is possible to use an External Power Supply (at 5V, 12V or 24V) or the Internal Power Supply provided through VCC
and GND. The max input current is 20 mA. When the “External action signal” is closed, the function will be activated.
Choose one the following solutions according to your specific requirements.
Figure 3.67 External Power Supply Solution
Figure 3.68 Internal Power Supply Solution
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Vertiv™ Liebert® MTP Online UPS User Manual 20-40-80kVA
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