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