GE 339 Instruction Manual page 284

S5 INPUTS/OUTPUTS
6–162
is available and the motor will continue to run. This has the advantage that the process will
not shut down, however the motor may be damaged if a fault develops under these
conditions.
The following path is available using the keypad. For instructions on how to use the
keypad, please refer to Chapter 3 - Working with the Keypad.
PATH:
SETPOINTS > S5 INPUTS/OUTPUTS > OUTPUT RELAYS > RLY 3 START INHIB
RELAY OPERATION
Range: Non-Failsafe, Failsafe
Default: Non-failsafe
Figure 55: Contactor: Wiring for Start Inhibit and Trip (Non-failsafe)
Motor Seal-in
Contact
START INHIBIT
(Output Relay 3:
Non-fail safe)
Figure 56: Contactor: Wiring for Start Inhibit and Trip (Failsafe)
Motor Seal-in
Contact
START INHIBIT
(Output Relay 3:
Fail safe)
Auxiliary Output Relays 5 to 6
When the setting
S2 SYSTEM SETUP > SWITCHING DEVICE
2 output relays (Output Relay 5 to 6) available for customer specific requirement. Each
auxiliary relay can be selected as either Self-Reset or Latched. If the Self-Reset type is
selected, the output relay will be energized as long as the element is in operating mode
and will reset when the element drops out. If the Latched type is selected, the output relay
will stay energized, after the element dropout, and will be de-energized upon the reset
command. Each auxiliary relay can also be selected as either Non-Failsafe, or Failsafe. If
an output is required when the 339 is not operational due to a loss of control power, select
Failsafe auxiliary operation, otherwise, choose Non-Failsafe.
PATH:
SETPOINTS > S5 INPUTS/OUTPUTS > OUTPUT RELAYS > RLY 5(6) AUXILIARY
(Output Relay 4:
START STOP
Non-fail safe)
(Output Relay 4:
START STOP
Fail safe)
is selected CONTACTOR, there are
339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 6: SETPOINTS
Control Power
TRIP
Close
Coil
896842.cdr
Control Power
TRIP
Close
Coil
896843.cdr