Pilz PMCprimo DriveP.01/AA0/4/0/0/208-480VAC - Manual (Page 52)

Function description
Operating Manual PMCprotego S1­2(­C)
1002528­EN­02 52
} Ready: Output for operating status of safety card and second output for feedback from
safety function STO
} SBT Activate: Input for safety function SBT
} SBA Safe Brake Acknowledge: Output for feedback from safety function SBT, brake
test successful
} STO Acknowledge: Output for feedback from safety function STO
} SSA Safe Standstill Acknowledge: Output for feedback from position monitoring
} SBC+/SBC­: Brake control output
4.4 Operating mode of the servo amplifier
Activation of safety functions SS1 and SS2 has repercussions on the servo amplifier's oper­
ating mode:
SS1 when OPMODE = 0 ... 8
} The drive­activated safety function "safe stop 1" (SS1) behaves the same in all of the
servo amplifier's operating modes, as ultimately the movement is not continued. The
safety card must be reset to resume operation.
} The status of the safety card (SS1 activated) is transmitted to the servo amplifier. As a
result, the information is available to a higher level control system (status word).
} The transfer of setpoint values from external servo amplifier interfaces (bus system or
analogue input) is disabled.
} The servo amplifier applies speed­controlled braking with the preset braking ramp until
standstill is achieved, and disables the servo amplifier's power element.
} When the set delay time has elapsed, the safety card activates the safety function STO.
The servo amplifier cannot be restarted.
Braking ramp
v
t t1
SS1 Activate
1
0
Setpoint value
1
0
STO delay time
Enable
1
0
STO
t2
STO Acknowledge
1
0
Any Braking ramp Any