12 Descriptions of Parameter Settings | VFD-ED
STO Latch Selection
Control Mode
VF VFPG SVC FOCPG
FOCPM Default: 0000h
Settings 0000h: STO fault latched, resending RUN command is required
0001h: STO warning latched, resending RUN command is required
0002h: STO fault latched
0003h: STO warning unlatched
0000h: STO fault latched, resending RUN command is required
If STO is ON in any condition and a fault occurs, it does not reset until STO is back to normal and use a
RESET command or power-on again after resending the RUN command.
0001h: STO warning latched, resending RUN command is required
If STO is ON in any condition and a warning occurs, it does not reset until STO is back to normal and
resend the RUN command.
0002h: STO fault latched
If STO is ON in any condition and a fault occurs, it does not reset until STO is back to normal and use a
RESET command or power-on again.
0003h: STO warning unlatched
If STO is ON in any condition and a warning occurs, it automatically resets when STO is back to normal.
For more information on the timing diagram, see Section 16-5.
Make sure there is no risk, which is assessed by the elevator controller, before using the STO warning
unlatched function.
Fault codes STL1 to STL3 are regarded as fault latched (you cannot set Pr.06-49).
MO’s Action when Retrying after Fault
Control Mode
VF VFPG SVC FOCPG FOCPM Default: 0
Settings 0: Output
1: No output
Determines whether to display the fault indication when the following faults occur:
1: Over-current during acceleration (ocA)
2: Over-current during deceleration (ocd)
3: Over-current during constant speed (ocn)
4: Ground fault (GFF)
6: Over-current at stop (ocS)
7: Over-voltage during acceleration (ovA)
8: Over-voltage during deceleration (ovd)
9: Over-voltage during constant speed (ovn)
10: Over-voltage at stop (ovS)
11: Low voltage during acceleration (LvA)
12: Low voltage during deceleration (Lvd)
13: Low voltage during constant speed (Lvn)
14: Low voltage at stop (LvS)
15: Input Phase loss (PHL)
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