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7.1. General Operation and Function
7.1.10. Brake
7.1.10.3. Brake Control Output (BRKC)
l This is an output signal to control the brake for an auxiliary measure for the position holding
rigidity when the Motor is stationary under positioning operation. Use the output to control on
and off of the brake power.
l For the B5 and the 25 Driver Units, the BF0 parameter makes the BRKC output effective.
l When the I/O combination type of the B3 and the 23 Driver Units is other than TY8, the BRKC
output is not available.
l When the I/O combination type of the B3 and the 23 Driver Units is TY8, the parameters BF1
makes the BRKC output effective.
l The brake sequence function, which is shown in he following paragraph, changes the BRKC
output along with the positioning operation of the Motor.
7.1.10.4. Brake Sequence Function
l This function makes the Driver Unit possible to process automatically the brake control such as
Brake on/off and Integration ON/OFF that is required for positioning operation of the Motor
equipped with the brake.
l The conditions that make the function effective are the same as those of the BRKC output.
l This function is effective for Programmable Indexer positioning, RS-232C communication
command positioning and Home Return.
l This function is not effective for pulse train command operation, and velocity/torque control
mode operation. Make the brake off by the CLCN input ON when performing those operations.
l The commands and parameters, and Input/Output signals related to the brake sequence are listed
in Table 7-3 below.
Table 7-3: Command/parameter and Input/Output signal related to brake sequence
Parameter BF
Parameter WC
Parameter WU
Command KB
CLCN input
BRKC output
Item
Selects function of brake sequence.
Sets time delay for brake-on.
Sets time delay for brake-on.
* For maintenance only: Makes the brake sequence ineffective and
Input signal for releasing brake
Output signal to control ON/OFF of the brake power.
Function
unconditionally release the brake.
— 7-14 —
B
B
3
3
t
t
y
y
p
p
e
e
B
B
5
5
t
t
y
y
p
p
e
e
2
3
t
y
p
e
2
5
t
y
p
e
2
3
t
y
p
e
2
5
t
y
p
e
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Troubleshooting
