Ametek Amrel PLA 2U, Operation Manual

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M470039-01 REV-F Page 43
b. RY_CO Rela y Common. Provides the common (reference) connection only for RY_NC or RY_NO
c. RY_NO Dry Conta cts a la rm: a fa ult a la rm is decla red if there is a loss of AC power or protections a re triggered.
The fault alarm outputs provide a normally open relay configuration that provides user’s flexibility and isolation
required to a n externa l controller or a n externa l a la rm pa nel. The dela y is 3 second.
d. RI_1 Remote Inhibited (RI) is used a s a n emergency switch to disa ble the system. RI ca n be connecting to a
switch or a n open collector device tha t shorts the RI pin to common (EGND) whenever it is necessa ry to disa ble
input of the unit. Once RI is a ctiva ted, it will turn off the dc output. In order to re-a ctiva te the unit, the
connection between common a nd RI pin needs to be open a ga in, a nd it will ha ve 3 seconds dela y.
4. External programming port.
5. Connector, GPIB/IEEE-488.2.
6. Connector, DB9 for RS232.
7. Connector, RJ45 for Ethernet interface (LAN).
8. Connector, USB.
9. AC power inlet with external fuse holder.
10. Interconnect AC power (future option)
11. Interconnect cables (future option)