GE 339

6–146 339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
S5 INPUTS/OUTPUTS CHAPTER 6: SETPOINTS
Output relays - Input/Output “E”
The 339 relay is equipped with seven electromechanical output relays: two form A relays
(Relay 1 and Relay 2), and five form C relays (Relays 3 to 7). Depending on the setting S2
SYSTEM SETUP > SWITCHING DEVICE
, these output relays function differently per the
application of BREAKER and CONTACTOR.
Figure 6-62: Relay trip
SEAL-IN TIME
SETTING
0
RELAY 1 TRIP
AND
SETTINGS
Off=0
Input
BLOCK RLY1 TRIP
RELAY 1 TRIP
Block Trip Input
S
R
LATCH
SETTING
Breaker
Contactor
SWITCHING DEVICE
SYSTEM SETUP
AND
AND
t
LOGIC OPERAND
ANY ALARM PKP
ANY ALARM OP
ANY LATCHED ALARM OP
ANY TRIP PKP
LOGIC OPERAND
Any Trip OP
AND
S
R
LATCH
OR
OR
LED: Trip
LED: Pickup
LED: Alarm
Operate Output Relay 4 (Contactor Trip)
Operate Output Relay 1
(Breaker Trip)
896825.cdr
AND
AND
INPUTS
Emergency Restart Input
Lockout Reset Input
SETTINGS
Off=0
Lockout Reset
Off=0
Emergency Restart
S4 CONTROLS
Remote Reset Input
Remote Reset
Off=0
AND
OR
KEYPAD RESET
OR
Locally open breaker (relay keypad)
Remote open breaker
ANY START INHIBIT
LED: Start Inhibit
operate Output Relay 3