Chapter 2 Installation
19
Silkprint
Port name
Pin NO.
Pin name
Meaning
4
Input port of remote
EPO *
4.1
EPO_NC
EPO activated, when opened to 4.2
4.2
+12V
EPO activated, when opened to 4.1
4.3
+12V
EPO activated, when shorted to 4.4
4.4
EPO_IN
EPO activated, when shorted to 4.3
5
Output port of bypass
reflected
5.1
BFP_O
Bypass reflected protection relay (normally open), the bypass
silicon controlled rectifier (SCR) will close when short circuit
appears
5.2
BFP_S
The middle point of the bypass reflected protection relay
5.3
BFP_C
Bypass reflected protection relay (normally open), the bypass
SCR will open when short circuit appears
Note*: Pin1 and pin2, or pin3 and pin4 of the dry contact port 4 reserves the corresponding terminals for configuring the EPO
function. The external EPO device also needs the shielded cable to connect to the normally open/close remote EPO switch
between the two terminals. If not necessary, you should disconnect pin3 and pin4 of the dry contact port 4, or short pin1 and pin2
of the dry contact port 4. Pin1 and pin2 of the dry contact port 4 have been shorted before delivery
Note
The EPO action of the UPS will close the rectifier, inverter and static bypass, but it can not disconnect the UPS mains input inside.
If you want to disconnect the UPS completely, just disconnect the upstream input switch when generating the EPO,.
2.7.2 Connecting USB Communication Cable
Insert one end of the USB communication cable accessory into the USB port on the UPS rear panel (see Figure 1-2),
and insert the other end of the USB communication cable into the computer USB port.
2.7.3 Connecting SNMP Card Communication Cable
The UPS provides the installation communication components of the SNMP card port (see Figure1-2), including:
SNMP card, dry contact card and MODBUS card. For the installation and usage of the communication components,
refer to the delivered documentation of each communication component. SNMP card port and USB port can be used
together.
The pin distribution of each SNMP card port is shown in Figure 2-17.
GND_SNMP
SNMPSIG
+9_SNMP
RXD_SNMP
TXD_SNMP
RXD232
TXD232
+9_TR
1
2
3
4
5
6
7
8
9
10
14 PIN
Figure 2-17 Pin distribution of SNMP card ports
Summary of Contents for Adapt
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