12.9 L: Protection Functions
718 YASKAWA SIEPC71061753C GA500 Technical Manual
Detects the frequency while the drive is operating. When the drive turns off its output, it will not detect frequency.
1 : Detection Always Enabled
■ L4-08: Speed Agree Source Selection
No.
(Hex.)
Name Description
Default
(Range)
L4-08
(047F)
Speed Agree Source
Selection
Sets the drive to use the soft starter output frequency or the motor speed (estimation value) for
speed detection.
1
(0, 1)
0 : Softstarter Output (Reference)
1 : Motor Speed (Actual Speed)
The setting for L4-08 has an effect:
• When you set detection conditions for oL3 [Overtorque 1], oL3 [Overtorque Detection 1], oL4 [Overtorque 2],
and oL4 [Overtorque Detection 2]:
– L6-01 = 1, 3, 5, 7 [Torque Detection Selection 1 = UL @ Speed Agree]
– L6-04 = 1, 3, 5, 7 [Torque Detection Selection 2 = UL @ Speed Agree]
• When you use speed agreement with DriveWorksEZ.
• When the MFDI terminals set for H1-xx = 75, 76 [Up/Down 2 command] activate.
• When you set H2-xx [MFDO Function Select] to these functions:
Setting Value Function
2 Speed Agree 1
3 User-Set Speed Agree 1
4 Frequency Detection 1
5 Frequency Detection 2
Setting Value Function
13 Speed Agree 2
14 User-Set Speed Agree 2
15 Frequency Detection 3
16 Frequency Detection 4
• When you use these functions for MEMOBUS monitor data:
Register No. Description
002CH
Drive Status 2
bit2
Speed agreement
1: During agreement
bit3
User-defined speed agreement
1: During agreement
bit4
Frequency Detection 1
1: Output frequency ≤ L4-01
bit5
Frequency Detection 2
1: Output frequency ≥ L4-01
004BH
U1-12 [Drive Status]
bit4 1: During speed agreement
• When you use these functions for monitor parameters:
No.
(Hex.)
Name Description
U1-12
(004B)
Drive Status bit 4: During speed agreement
◆ L5: Fault Restart
The Auto Restart function tries to keep machines operating when the drive detects a transient fault.
The drive can do a self-diagnostic check and continue the operation after a fault. If the cause of the fault goes
away, the drive does speed search and restarts. It will not stop and the drive will not record a fault history. Use L5-
02 [Fault Contact at Restart Select] to select the operation of fault relay signals during Auto Restart operation.
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