Omron R88D-1SN15F-ECT

8 Safety Function
8 - 12
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
The dynamic brake operates according to the setting of the Stop Selection – Shutdown Option Code
(3B20-01 hex).
8-3-2 Operation Example
Operation Timing to a Safe State
on off
Operation enabled Switched on disabled
PDS state
Brake Interlock
Output (BKIR)
Communication time is determined by
the following factors.
Safety CPU Unit cycle time
EtherCAT Communications cycle
Inactive Active
T
Reset STO
STO command
at Safety CPU Unit
at Servo Drive
at Servo Drive
Motor power status
Activate STO
Communication time
Activate STO
Reset STO
Normal status
7 ms max.
10 ms max.
15 ms max.
T is determined by a set value of the following objects, whichever comes earlier.
4610-02 hex
4610-03 hex
: Brake Interlock Output – Timeout at Servo OFF
: Brake Interlock Output – Threshold Speed at Servo OFF
Servo ON Servo OFF
Reaction time
DB released
DB applied
Dynamic brake
Servo ON/OFF
STO command
STO status
STO status