Toshiba T300MVi MEDIUM VOLTAGE - Protective Functions Table

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Protective Functions
The main protective functions are shown in the following table. For other faults or more details,
refer to the troubleshooting manual.
Protective Function Table
Heavy Fault
Medium
Fault
Light
Fault
Item Abbreviation
Hardware
Detection
Software
Detection
Coast
to stop
Decel
stop
Stop
request
Alarm
Start
Interlock
Input main switch open AC_MCCB O O
No load connected AC_NL O O
Output main switch closed
without signal (Welded)
ACSW_C
O
Output main switch opened
during operation
ACSW_F
O O
Output main switch open timer ACSW_T O O
Brake healthy B_HLTY O O
External trip from input breaker BLA O O
Brake release fault BR_F O O
Equipment ventilation fan stop C_FN O O O
Equipment ventilation fan stop
timer
C_FN_T
O O
Current limit timer CL_T O O
Current limit alarm CL_TA O O
Control power supply loss CPSF O O*
CPU error CPU_A or M O O*
U or W phase feedback error CURU or W O O*
Door open DS_T O O*
Encoder feedback error ENCODER_F O O*
Rectifier fuse fault FUSE_xP
FUSE_xN
O O*
Ground fault alarm GR_A_ O O O
Ground fault trip GR_T_ O O
External interlock IL O O
Motor cooling fan stop timer M_FN_T O O
Motor cooling fan stop M_FN O O O O
Motor overheat M_OH O O O O
Motor overheat alarm M_OH_A O O O
Main power supply loss MPSF O O*
Main power supply loss MPSF_MV O O*
Motor temperature sensor error MTMP_S O O O
AC over-current OCA O O*
Power Module phase over-
current
OCD_x
O O*
Power Module IGBT over-
current
OCD_xA1
OCD_xA4
OCD_xB1
OCD_xB4
O O*
Power Module overheat OH_T_x O O*
Transformer over heat OH_TR O O*