Ametek Amrel PLA 2U, Руководство по эксплуатации

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M470039-01 REV-F Page 41
1. ( – ) Negative input terminal. (two M12 screw threads)
2. ( + ) Positive input terminal. (two M12 screw threads)
3. Relay connector.
a. RY_NC 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 closed relay configuration that provides user’s
flexibility a nd isola tion required to a n externa l controller or a n externa l a la rm pa nel. The dela y is 3 second
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 a nd isola tion 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. Chassis / Line ground lug screw.
10. AC power inlet with external fuse holder.
11. Water inlet ( Pipe size: 3/8” NPT)*
12. Water outlet ( Pipe size: 3/8” NPT)*
13. Water valve power connector
*To accommodate different cooling system requirements, every AMREL standalone 4U Water-
cooled eLoad is supplied with a set of detached external piping kit. MANIFOLD-4U converts two
3/8” NPT into one ½” NPT pipe size for both water inlet and outlet. Appendix B Section 6 provides
detail installation of MANIFOLD-4U to a 4U water cooled eLoad.