Yaskawa E7 Drive User Manual - Manual (Page 121)

Programming 5 - 47
The auto restart count is reset back to 0 if any of the following occur:
• No further faults for ten minutes after the last retry.
• The Drives power is turned off (the Drive must be without power long enough to let control power dissipate).
• The SHIFT/RESET key is pushed after the last reset attempt.
The setting of parameter L5-02 determines whether the fault output (MA-MB) will be closed during an auto restart attempt.
The setting of L5-02 can be important when interfacing the Drive with other equipment.
The following faults will allow the Auto Restart function to initiate:
• OC (Overcurrent)
• LF (Output Open Phase)
• PF (Input Phase Loss)
• PUF (DC Bus Fuse)
• OL1 (Motor Overload)
• OL3 (Overtorque)
• OL2 (Drive Overload)
• OV (DC Bus Overvoltage)
• GF (Ground Fault)
• UV1 (DC Bus Undervoltage)
• OH1 (Overheat)
In order for auto restart after a UV1 fault, Momentary Power Loss Ride-thru must be enabled (L2-01= “1: PwrL Ride Thru t”,
or “2: CPU Power Active”). Setting H2-01 or H2-02 equal to “1E” configures a digital output as “Restart Enabled” to signal if
an impending auto restart is possible.
TM_E7_01_07182008.book Page 47 Wednesday, July 23, 2008 2:35 PM