L5: Fault Restart - Omron J1000 User Manual

• The braking sequence should be designed as follows:
• A normally open signal (N.O.) should be used to control the brake so that it is released when terminal MA-MC closes.
• An external circuit should be added to ensure the brake is fully applied in case of a fault or emergency condition.
• An additional external circuit should also be added to ensure the brake releases properly when an Up/Down Command
is entered.
• When changing the speed using an analog signal, make sure that the source of the frequency reference is assigned to the
control circuit terminals (b1-01 = 1).
• A sequence to open and close the holding brake appears in the diagram below.
u

L5: Fault Restart

The drive can be set up to perform a self-diagnostic check and resume the operation after a fault has occurred. When the
self-check is successful and the cause of the fault has disappeared the drive will restart.
The drive can attempt to restart itself following the faults listed below.
Fault
oC
oL1
oL2
oL3
<1> When L2-01 is set to 1 or 2 (continue operation during momentary power loss)
Use parameter L5-01 to set up automatic fault restart.
To output a signal during fault restart, set H2-01 to 1E.
n L5-01: Number of Auto Restart Attempts
Sets the number of times that the drive may attempt to restart itself.
No.
L5-01
The restart counter is incremented at each restart attempt, regardless of whether the attempt was successful. When the
counter reaches the number set in L5-01 the operation stops and the fault has to be reset manually after correcting the
cause.
The number of fault restarts is reset back to zero when:
• The drive operates normally for ten minutes following a fault restart.
• A fault is cleared manually after protective functions are triggered.
• The power supply is cycled.
SIEP C710606 33A OYMC AC Drive – J1000 User Manual
L4-01
Output
Frequency
Frequency
Dectection 2
Figure 5.37 Frequency Detection 2
OFF
S1-SC
UP
Output frequency
0
Output
Frequency Detection 2
(H2-01=5)
MA-MC
Holding brake
Closed
Figure 5.38 Holding Brake Time Chart
Name
(Overcurrent)
(Motor Overload)
(Drive Overload)
(Overtorque 1)
Name
Number of Auto Restarts
2.0 Hz (fixed)
ON
OFF
ON
b6-02
d1-01 (Enabled when b1-01 = 0)
d1-03
b6-01
b4-01
L4-01
DC Injection braking
OFF
ON
Open
Closed
Fault
PF
rH
Uv1
5.7 L: Protection Functions
Time
Time
Name
(Input Phase Loss)
(Braking Resistor Fault)
(DC Bus Undervoltage)
Setting Range
0 to 10
<1>
5
Default
0
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