Reduced Voltage Starting - GE M60 Instruction Manual

CONTROL ELEMENTS
The
RESTART DELAY MIN TIME
restart delay element asserts the
stopped. The element uses the motor status asserted by the Thermal Model element. The thermal protection must be
configured properly in order for this function to operate.

5.8.8 Reduced voltage starting

SETTINGS  CONTROL ELEMENTS  REDUCED VOLTAGE STARTING
5
 REDUCED VOLTAGE
 STARTING
The M60 can control the transition of a motor start from reduced to full voltage. This feature uses motor load and a
supervisory timer to initiate a one second control signal (the
voltage. The feature can also assert a trip signal (the
timer transitions do not occur as expected. This transition can be defined as current only, current or timer, or current and
timer.
5-294
RESTART DELAY

TARGET: Self-reset
RESTART DELAY

EVENTS: Disabled
setting specifies the lockout time before starting the motor after the motor has stopped. The
FlexLogic operand for
RESTART DELAY OP
Figure 5-165: Restart delay logic
REDUCED VOLTAGE

STARTING: Disabled
TRANSITION MODE:

Current Only
REDUCED VOLT FLA:

125% FLA
REDUCED VOLT TIMER:

10.0 s
REDUCED VOLT BLOCK:

Off
REDUCED VOLT TARGET:

Self-reset
REDUCED VOLT EVENTS:

Disabled
REDUCED VOLT OP
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
RESTART DELAY MIN TIME
Range: Disabled, Enabled
Range: Current Only, Current or Timer,
Current and Timer
Range: 25 to 300% FLA in steps of 1
Range: 1.0 to 600.0 s in steps of 0.1
Range: FlexLogic operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
operand) that can be used to switch to full
REDUCED VOLT CTRL
operand) from the starting logic if the current or
M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 5: SETTINGS
after the motor has