8 Safety Function
8 - 6
G5-series Linear Motors/Servo Drives With Built-in EtherCAT Communications
*1 Make sure that servo ON input is “OFF” when you return the input signals of safety inputs 1 and 2 to “ON.”
If an error exists in this state, be sure to clear the error when both safety inputs 1 and 2 have returned to “ON”
state. If either safety input 1 or 2 is executed with “OFF,” an error occurs immediately.
Also, depending on the execution timing, an Other Error (Error No. 99.9) may occur.
If this error (Error No. 99.9) occurs, turn OFF and then ON the power again.
*2 An error exists in this state. The dynamic brake operates according to the Fault reaction option code (605E hex).
*3 This is a nomal servo OFF state. The dynamic brake operates according to the Disable operation option code
(605C hex).
Timing of Return from Safety Status
response time = max. 6 ms
READY
ON
OFF
Servo ON/OFF
*1
Servo ready
completed output
(READY)
Error reset
input (RESET)
*1
Brake interlock
output (BKIR)
STO status
DB released/engaged
*2
DB released/engaged
*3
Error
Brake engaged
Reset
Normal
Servo OFFError status
Safety input 1
Safety input 2
Motor power
is supplied
Error output
(/ALM)
Dynamic brake relay
EDM output
After the servo
turns ON, operation
will follow the
normal servo
ON/OFF operation
timing diagram.
For details, refer to
7-5 Brake Interlock.
Normal status
Servo ONServo OFF command
No power supply
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