Delta VFD-ED Series, User Manual

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Ch12 Descriptions of Parameter Settings | VFD-ED
12-59
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:
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)
 Two MO terminals are affected by this parameter and should be set up as:
MO = 10: Low voltage waning (LV)
MO = 11: Fault Indication

Number of Times to Retry after Fault
Control Mode VF VFPG SVC FOCPG FOCPM Default: 0
Settings 0–10 times
 To determine the number of times to retry when the following faults occur:
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)
 After every retry attempt, the number of times to retry is automatically reduced by one as displayed on the
keypad.
 The principles for the number of times to reset:
1. Reset the fault manually.
2. After running normally for 10 minutes, the motor drive returns to the prior setting.
3. The motor drive is powered on and powered off again.