YASKAWA CIMR-VU BA0001 Technical Manual page 229

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 Drive Control for Holding Brake Applications
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 Parameter
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.
• 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.
YASKAWA ELECTRIC SIEP C710606 18F YASKAWA AC Drive – V1000 Technical Manual
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
L4-07 = 0 Frequency Detection Level
H2-01 = 5 Frequency Detection Width
L4-01
Output
Frequency
Frequency
Detection 2
Figure 5.86 Frequency Detection 2
Function
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
5.8 L: Protection Functions
Description
Parameter
<1>
L4-01 = 2.0 to 3.0 Hz
2.0 Hz (fixed)
Time
5
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