GE 469 Instruction Manual page 66

Motor management relay
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4.3 S2 SYSTEM SETUP
Figure 4–2: REDUCED VOLTAGE STARTING CURRENT CHARACTERISTIC
4
If this feature is used, the Starter Status Switch input must be either from a common control contact or a
parallel combination of Auxiliary 'a' contacts or a series combination of Auxiliary 'b' contacts from the
NOTE
reduced voltage contactor and the full voltage contactor. Once transition is initiated, the 469 assumes the
motor is still running for at least 2 seconds. This prevents the 469 from recognizing an additional start if
motor current goes to zero during an open transition.
4-16
Courtesy of NationalSwitchgear.com
MOTOR
AMPS
(% FLA)
3 x FLA
Transition
Level
FLA
signifies
Open Transition
D16
STARTER STATUS
SWITCH INPUT
(Setpoint = 'Starter Auxiliary A')
D23
REDUCED VOLTAGE STARTER AUXILIARY 'A' STATUS INPUT
D16
STARTER STATUS
SWITCH INPUT
(Setpoint = 'Starter Auxiliary B')
D23
REDUCED VOLTAGE STARTER AUXILIARY 'B' STATUS INPUT
Figure 4–3: REDUCED VOLTAGE STARTER INPUTS
469 Motor Management Relay
When the currrent falls below
the Transition Level and/or the
Timer expires, the Auxiliary
Relay activates for 1 second
Transition Time
REDUCED VOLTAGE
FULL VOLTAGE
AUXILIARY 'a'
AUXILIARY 'a'
REDUCED VOLTAGE
AUXILIARY 'b'
FULL VOLTAGE
AUXILIARY 'b'
4 SETPOINTS
TIME
808725A1.CDR
808723A1.CDR
GE Multilin

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