Function description
Operating Manual PMCprotego S12(C)
1002528EN03
51
}
Venting the brake
}
Output "SBA Safe Brake Acknowledge": "1" signal. Brake test successful
Timing diagram:
SS1 Activate
SS1 SIL3/Reset
Ready
SBT Activate
SBA Safe Brake
Acknowledge
STO Acknowledge
SSA Safe Standstill
Acknowledge
SBC+/SBC-
SBT delay time
Delay time
Ventilation
Delay time
Energisation
Monitoring
period
Fig.: Safety function SBT
}
t
1
: Activation of safety function SBT, start of SBT delay time
}
t
2
: Start of brake test, brake engages
}
t
3
: Start of monitoring period, power is supplied to the motor
}
t
4
: End of monitoring period
}
t
5
: End of brake test
}
SS1 Activate: Input for safety function SS1
}
SS1 SIL3/Reset: Input for SIL 3 and reset
}
Ready: Output for operating status of safety card and second output for feedback from
safety function STO
}
SBT Activate: Input for safety function SBT
