GE EPM 3000P - Manual (Page 13)

Chapter 2 Electrical Installation
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LINE
A B
LOAD
DUAL-PHASE
WITH CTs AND Direct Voltage
L1
L2
POWER
+
-
PORT
BACK VIEW
N
VII. Dual-Phase System
2.6 R ELAYS AND P ROTECTION
NOTE: T HIS SECTION IS APPLICABLE ONLY IF THE -NL R ELAY O PTION WAS ORDERED .
The EPM3000P allows the user to access a variety of relay options through the programming mode. The relay option
package consists of two relays, which can be dedicated to alarm or communication (or both).
TIME DELAY: Sets off the alarm, alerting the user that an out-of-limits condition occurred during the defined time
limit. The time delay can be programmed for any desirable duration.
If the relays are dedicated to communication, there are two different modes:
ƒ Lock ON Relay will not be affected by any alarm condition.
ƒ Lock OFF Relay will not be affected by any alarm condition.
If the relays are used for communication and alarm, there are four different modes:
ƒ Lock ON Relay stays on regardless of any alarm condition.
ƒ Lock OFF Relay stays off regardless of any alarm condition.
ƒ Free ON Relay turns on unless other conditions force it off.
ƒ Free OFF Relay turns off unless other conditions force it on.
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GE Industrial Systems