YASKAWA E1000 User Manual

5.8 L: Protection Functions
230 YASKAWA ELECTRIC SIEP C710616 35D YASKAWA AC Drive E1000 Technical Manual
Figure 5.77
Figure 5.77 Automatic Restart Timing Diagram
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 drive's power is turned off (the drive must be without power long enough to let control power dissipate).
• The 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 Phase Loss)
• PF (Input Phase Loss)
•oL1 (Motor Overload)
• oL3 (Overtorque Detection 1)
• oL2 (Drive Overload)
• ov (Overvoltage)
• GF (Ground Fault)
• Uv1 (Undervoltage)
• oH1 (Heatsink Overheat)
In order for auto restart after a Uv1 fault, Momentary Power Loss Ride-thru must be enabled (L2-01= “1: Power Loss
Ridethru Time”, or “2: CPU Power Active”). Setting H2-01, H2-02 or H2-03 equal to “1E” configures a digital output as
“Restart Enabled” to signal if an impending auto restart is possible.
■
L5-04: Fault Reset Interval Time
Determines the amount of time to wait between restart attempts when parameter L5-05 is set to 1.
■
L5-05: Fault Reset Operation Selection
Setting 0: Count successful restarts
The drive will continuously attempt to restart. If it restarts successfully, the restart counter is increased. This operation is
repeated each time a fault occurs until the counter reaches the value set in L5-01.
No. Name Setting Range Default
L5-04 Fault Reset Interval Time 0.5 to 600.0 s 10.0 s
No. Name Setting Range Default
L5-05 Fault Reset Operation Selection 0 or 1 0
Run
Fault
Attempts
Voltage
remains high
for a long time,
then reset (1)
Drive trips on oC,
resets (2) and tries
again but motor still
shorted, trips again.
oC condition
gone, resets (3)
and runs.
Time
L2-03 L2-03 L2-03
L5-03
Count
ov
123
oC oC
trying each
L5-03 seconds
successful successful
try but
failed
common_TMon
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YASKAWA E1000 Specifications

General

Brand	YASKAWA
Model	E1000
Category	Controller
Language	English