Chapter 12 Descriptions of Parameter SettingsMS300 
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 When a malfunction occurs, check the current motor speed in rpm. If it happens again, it 
overwrites the previous record. 
Torque Command at Malfunction 
 When a malfunction occurs, check the current torque command. If it happens again, it overwrites 
the previous record. 
Status of the Multi-function Input Terminal at Malfunction 
Status of the Multi-function Output Terminal at Malfunction 
 When a malfunction occurs, check the current status of the multi-function input/output terminals. 
If it happens again, it overwrites the previous record. 
Drive Status at Malfunction 
 When a malfunction occurs, check the current drive status (communication address 2101H). If it 
happens again, it overwrites the previous record. 
0: STO Latch 
1: STO No Latch 
 Pr.06-44 = 0: STO Alarm Latch. After you clear the cause of the STO Alarm, use a Reset 
command to clear the STO Alarm. 
 Pr.06-44 = 1: STO Alarm no Latch. After you clear the cause of the STO Alarm, the STO Alarm 
clears automatically. 
 All of the STL1–STL3 errors are “Alarm Latch” mode (in STL1–STL3 mode, the Pr.06-44 function 
is not available).
Output Phase Loss Detection Action (OPHL) 
0: Warn and continue operation 
1: Fault and ramp to stop 
2: Fault and coast to stop 
 The OPHL protection is enabled when Pr.06-45 is not set to 3.