Relay Mode - GE EPM 5300 Instruction Manual

CHAPTER 9: PROGRAMMING GROUP 0 – GLOBAL METER SETUP

9.7: Relay Mode

NOTE: Relays are not available for the EPM 5200P.
SWITCH
A
B
C & D
The Switch PACKS in FUNCTIONS 4 and 5 of programming GROUP 0 control the relay position. Setting
the switches in different combinations allows the user to specify the conditions in which the relay will be
"SET" or "RESET." The following table indicates possible configurations.
SWITCH C SWITCH
D
UP UP
UP DOWN
DOWN UP
DOWN DOWN
RESET: There is a short between "COM" and "N.C." (Normally closed)
SET: There is a short between "COM" and "N.O." (Normally open)
(See Part I: Installation and Operation.)
Example 1: Fail-safe mode normally set—non-event condition is set relay
Relay 1 will be "SET" if the instantaneous reading for frequency is between 58 Hz and 62 Hz. When all
other conditions exist, the relay will "RESET."
NOTE: Under this setup the relay acts as a protective switch.
50
DESCRIPTION
Reversal Imbalance Control
AND/OR Logic
Relay Control
Table 9-3: SWITCH PACKS for 04P & 05P
FAIL-SAFE MODE—The normal or non-event condition is set. RESET relay
on either out of limit condition. Relay acts as a protective switch if power is
interrupted. This alerts the user if the meter or the meter power is out.
N/A (Reserved for future features).
N/A (Reserved for future features).
RESET MODE—The normal or non-event condition is reset. SET relay on
either out of limit condition.
Table 9-4
DEFINITIONS:
R E S E T
6 2 H z
S E T
5 8 H z
R E S E T
0 H z
N O P O W E R T O T H E U N I T
EPM 5000 series Advanced Power Meters
Segment Position
UP!Enable
DOWN!Disable
UP!AND
DOWN!OR
see Table 8-4
DESCRIPTION
L 2
L 1
R E S E T
GE Multilin