This chapter provides detailed information on the safety
functions of the SERVOPACK.
Introduction to the Safety Functions . . . . 11-2
Safety Functions . . . . . . . . . . . . . . . . . . . . . . . . 11-2
Precautions for Safety Functions . . . . . . . . . . . 11-2
Hard Wire Base Block (HWBB) . . . . . . . . . 11-3
Risk Assessment . . . . . . . . . . . . . . . . . . . . . . . . 11-3
Hard Wire Base Block (HWBB) State . . . . . . . . . 11-4
Resetting the HWBB State . . . . . . . . . . . . . . . . 11-4
Detecting Errors in HWBB Signal . . . . . . . . . . . 11-5
HWBB Input Signal Specifications . . . . . . . . . . 11-5
Operation without a Host Controller . . . . . . . . . 11-5
/S-RDY (Servo Ready Output) Signal . . . . . . . . 11-6
/BK (Brake Output) Signal . . . . . . . . . . . . . . . . . 11-6
Stopping Methods . . . . . . . . . . . . . . . . . . . . . . 11-7
11.2.10 ALM (Servo Alarm) Signal and /ALO1, /ALO2,
and /ALO3 (Alarm Code Output) Signals . . . . . . 11-7
EDM1 (External Device Monitor) . . . . . . . . 11-8
EDM1 Output Signal Specifications . . . . . . . . . 11-8
Applications Examples for Safety Functions . . 11-9
Connection Example . . . . . . . . . . . . . . . . . . . . . 11-9
Failure Detection Method . . . . . . . . . . . . . . . . . 11-9
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-10
Validating Safety Functions . . . . . . . . . . . 11-11
Connecting a Safety Function Device . . . 11-12
Safety Functions
11