Digital Elements - GE M60 Instruction Manual

CHAPTER 5: SETTINGS
— This setting selects the reduced voltage starting transition method. The reduced voltage timer is
TRANSITION MODE
initiated at the beginning of a motor start; that is, when the motor status transitions from offline to starting. There are three
modes of transition:
• "Current Only" — When the motor load falls below the
reduced voltage timer, a transition is initiated by asserting the
Any contact output assigned to this operand operates for this period of time. If the reduced voltage timer expires prior
to the motor load dropping below the
state and the
REDUCED VOLT OP
• "Current Or Timer" — When the motor load falls below the
timer expires, a transition is initiated by asserting the
assigned to this control signal operates for this period of time.
• "Current And Timer" — A transition is initiated by asserting the
reduced voltage timer expires and the motor load has dropped below the
expiration of the reduced voltage timer. If the reduced voltage timer expires prior to the motor load dropping below
the
REDUCED VOLTAGE FLA
operand is asserted.
— This setting specifies the current level used when determining the transition mode and initiating the
REDUCED VOLT FLA
operand. Set it greater than the product of the
REDUCED VOLT CTRL
setting. See the Motor section under the
FACTOR
— This setting specifies the time-out value of the transition timer used in the selected transition mode.
REDUCED VOLT TIMER
SETTING
TRANSITION MODE
= Current Only
= Current or Timer
= Current and Timer
SETTING
REDUCED VOLTAGE
STARTING
= Enabled
REDUCED VOLT BLOCK
= Off
SETTING
REDUCED VOLT TIMER
FLEXLOGIC OPERAND 0
MOTOR STARTING

5.8.9 Digital elements

SETTINGS  CONTROL ELEMENTS  DIGITAL ELEMENTS  DIGITAL ELEMENT 1(48)
 DIGITAL ELEMENT 1

M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
REDUCED VOLTAGE FLA
REDUCED VOLTAGE FLA
operand is asserted.
REDUCED VOLT CTRL
setting, the
REDUCED VOLT CTRL
SETTINGS  SYSTEM SETUP  MOTOR
Figure 5-140: Reduced voltage starting logic
SETTING
REDUCED VOLT FLA
RUN
Motor load < PICKUP
OR
SETTING
REDUCED VOLT TIMER
T
PKP
AND
T
PKP
DIGITAL ELEMENT 1

FUNCTION: Disabled
DIG ELEM 1 NAME:

Dig Element 1
DIG ELEM 1 INPUT:

Off
setting prior to the expiration of the
operand for a period of one second.
REDUCED VOLT CTRL
setting, the
REDUCED VOLT CTRL
setting, or if the reduced voltage
REDUCED VOLTAGE FLA
operand for one second. Any contact output
operand for one second when the
REDUCED VOLT CTRL
REDUCED VOLTAGE FLA
operand does not change state and the
setting and the
MOTOR FULL LOAD AMPS
menu for details.
TIMER
0
AND
50 ms
AND
TIMER
0
OR
AND
OR
AND
0
Range: Disabled, Enabled
Range: 16 alphanumeric characters
Range: FlexLogic operand
CONTROL ELEMENTS
operand does not change
setting prior to the
REDUCED VOLT OP
MOTOR OVERLOAD
FLEXLOGIC OPERAND
REDUCED VOLT OP
FLEXLOGIC OPERAND
REDUCED VOLT CTRL
1 sec.
833023A1.CDR
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