YASKAWA V1000 Technical Manual page 218

5.8 L: Protection Functions
Setting 1: Match Frequency Reference and Motor Speed
Note: In V/f control the drive ignores the value set to L4-08 and refers to the soft-starter output to determine whether a speed agreement
situation has been reached.
The following functions are influenced by the speed agree condition:
• Overtorque alarms oL3 and oL4 when parameters L6-01 or L6-04 are set to 1, 3, 5, or 7.
• DriveWorksEZ functions that use speed agree output
• The Up 2/Down 2 functions
• Multi-Function Digital Output Settings
Setting Value
2
3
4
5
13
14
15
16
• MEMOBUS/Modbus Monitor Data
Register No.
002CH
004BH
• U: Monitor
No.
U1-12
n Notes on Controlling the Brake for the Hoist Application
The frequency detection function is used for controlling the brake.
When an external Baseblock command is present while a Run command is active, the frequency reference will be kept as
long as the Run command is active. To avoid improper brake operation make sure that frequency detection is set so that
the brake does not open during Baseblock (L4-07 = "0", default).
Brake Open/Close
Function
Frequency
Detection
Conditions
Frequency
Detection 2
<1> If the load slips during stop, make it greater than E1-09 or 2.0 Hz until the load no longer slips.
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.
218
Drive Status 2
Bit 2 Speed Agree, 1: During Agree
Bit 3 User-set Speed Agree, 1: During Agree
Bit 4 Frequency Detection 1, 1: Output Frequency ≤ L4-01
Bit 5 Frequency Detection 2, 1: Output Frequency ≥ L4-01
Drive Status (U1-12)
Bit 4 1: During Speed Agree
Name
Drive Status
Parameter
L4-07 = 0 Frequency Detection Level
H2-01 = 5 Frequency Detection Width
L4-01
Output
Frequency
Frequency
Dectection 2
Figure 5.86 Frequency Detection 2
Frequency (Speed) Agree 1
User-set Frequency (Speed) Agree 1
Frequency (FOUT) Detection 1
Frequency (FOUT) Detection 2
Frequency (Speed) Agree 2
User-set Frequency (Speed) Agree 2
Frequency (FOUT) Detection 3
Frequency (FOUT) Detection 4
Description
The fifth digit from the right side: During Speed Agree
Brake Activation Level
Signal
2.0 Hz (fixed)
ON
OFF
YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
Function
Description
Parameter
L4-01 = 2.0 to 3.0 Hz
2.0 Hz (fixed)
Time
<1>