
B-64004EN/02 5.I/O SIGNALS
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[Operation] In emergency stop state or alarm state, a mechanical brake is activated
by this signal.
A machine tool builder must connect this signal to a mechanical
brake.
[Output condition] In the following case, this signal is “1”.
• Releasing brake state
In the following case, this signal is “0”.
• Activating brake state
(a) In case *BRK signal is “0”
*ESP
*BRK
1
0
1
0
Emergency Stop state (*ESP signal is “0”)
larm
*BRK
1
0
1
0
Servo alarm occurs
Power
*BRK
1
0
1
0
Power-on
(b) In case BRK signal is “1”
When emergency stop is released (*ESP signal is “1”), MCC can
be enabled l (*MCF signal is “1”). After that, when MCC is
turned on, Safety Brake signal *BRK is turned to “1” after the
time specified by the parameter No.1950 is elapsed.
*MCF
1
0
*ESP
1
0
MCC
1
0
*BRK
1
0
Timer for brake signal
NOTE
Regular maintenance of a brake must be done.