Toshiba GR-200-5 Instruction Manual page 346

Motor start protection
2.28.3
The motor start protection can secure the motor when the motor status is "Start-up".
A trip signal can be issued if the motor current value exceeds 150% of [Mot-Ir] for more than a
certain time. The motor start protection function can operate when On is set for setting [Mot-
StPro-EN].
Scheme logic
The scheme logic of the motor start protection is illustrated in Figure 2.28-7.
Motor current is
150% or more of Mot-Ir.
Motor_Status=Start-up
800000EBB2 Mot-StPro_BLOCK
Mot-StPro-EN
Motor current is
5% or more of Mot-Ir.
Figure 2.28-7 Scheme logic of the motor start protection
Using setting [T-Mot-StPro], the user can adjust that certain time. The function can be blocked
when a signal is generated at PLC connection point [Mot-StPro_BLOCK]. When 'Mot-STPRO
TRIP' signal has been issued, the trip signal is outputted until the motor current value falls
below 5% of [Mot-Ir].
Table 2.28-7 Settings corresponded to the motor start protection
Setting items
Mot-StPro-EN
T-Mot-StPro
T-Mot-StPro
&
0.10-300.00s
1
Off
On
Range Unit
Off / On - Motor start protection enable
0.10 - 300.00 s Time for motor start protection judgment
- 326 -
8000001B6D
t 0
F/F
1
Contents
6F2T0207 (0.01)
Mot-STPRO-TRIP
Default
Off
60.00
GRE200 (5,6)