Pilz PMCprimo DriveP.01/AA0/4/0/0/208-480VAC - Manual (Page 27)

Function description
Operating Manual PMCprotego S1­2(­C)
1002528­EN­02 27
} "STO Acknowledge" output: “0” Signal
} To achieve SIL3 or PL e: Connect the output "STO SIL3" to servo amplifier terminal
X4A/ 3.
Safety function is activated
} By a 1/0 pulse edge at the input "SS2 Activate".
} The method by which the servo amplifier receives the command for controlled braking
of the motor is defined in the Configurator:
– Drive­activated: After the safety function is triggered, the safety card issues a com­
mand to the servo amplifier for controlled braking of the motor. The braking ramp is
configured in the Configurator.
– Controller­activated: After the safety function is triggered, the control system is­
sues a command to the servo amplifier for controlled braking of the motor. The
braking ramp must only be configured in the Configurator if monitoring of the brak­
ing ramp is also activate there.
Safety Card
Servo Amplifier
M
Input
v
t
Drive­activated braking ramp
Safety Card
Servo Amplifier
Controller
M
Input
v
t
Controller­activated braking ramp
Reaction:
} Controlled braking of the drive, with the configured braking ramp.
} The drive remains in a controlled standstill and is monitored for "safe standstill".
} Output "SSA Safe Standstill Acknowledge": "1" signal