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Toshiba GR-200-5 Instruction Manual page 342

Multi functional protection ied

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Figure 2.28-3.a illustrates the motor status transition when ContStart is set for the
setting [Mot-Start-IrrMode1]. Even if the motor start-up time elapses, the motor status
is continued "Start-up".
Figure 2.28-3.b illustrates the motor status transition when ChangeRun is set for the
setting [Mot-Start-IrrMode1]. After the motor start-up time has elapsed, the motor
status is changed to "Running".
Note: Default ContStart has been set for the setting [Mot-Start-IrrMode1], so the motor
status "Start-up" will continue if the user does not change the setting.
Motor current
Motor rated current
× 1.5
Overload current
Motor rated current
Motor rated current
× 0.05
Stop
a. Motor status transition for setting [Mot-Start-IrrMode1]=ContStart
Motor current
Motor rated current
× 1.5
Overload current
Motor rated current
Motor rated current
× 0.05
Stop
Figure 2.28-3 Motor status transitions in irregular mode-1
Irregular mode-2
For the standard motor operation and its protection, the motor should start when the
IED protection functions has operated completely. However, the motor state judgement
can also be applied to irregular mode in which IED and protection are turned on after
the motor starts.
Motor start-up time
Motor start-up time
Start-up
b. Motor status transition for setting [Mot-Start-IrrMode1]=ChangeRun
Start-up
Running
- 322 -
6F2T0207 (0.01)
Time
Time
GRE200 (5,6)

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Gr-200 seriesGr-200-6