Pilz PMCprimo DriveP.01/AA0/4/0/0/208-480VAC - Manual (Page 50)

4.3 Safety functions
4 Function Description
Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
4-32
The safety card monitors the following functions:
Sicherheitsfunktion_SBT_Ueberwach  During the brake test, the safety function SOS performs position mon-
itoring.
 The brake test must be carried out cyclically within a defined test pe-
riod, after 8 hours at the latest.
 The test period and tolerance time can be set in the Configurator.
Sicherheitsfunktion_Sxx_Voraussetzung_S1
Prerequisites for normal operation:
 Input "SS1 Activate" and "SS1 SIL3/Reset": "1" Signal (+24 VDC)
 "Ready" output: "1" Signal (+24 VDC). The safety card is ready for op-
eration.
 "STO Acknowledge" output: “0” Signal
Sicherheitsfunktion_SBC_SBT_Voraussetzung  Output "SBC+/SBC-": "1" Signal (+24 VDC)
 Both outputs are simultaneously set to a "1" Signal: Voltage differ-
ence of 24 V between SBC+ and SBC-.
Sicherheitsfunktion_SBT_Voraussetzung  Input "SBT Activate": "1" Signal (+24 VDC)
Sicherheitsfunktion_Sxx_Voraussetzung_SIL3  To achieve SIL3 or Ple: Connect the output "STO SIL3" to servo am-
plifier terminal X4A/ 3.
Sicherheitsfunktion_SBT_Ausloesung
Safety function is activated
 By a 1/0 pulse edge at the input "SBT Activate".
Sicherheitsfunktion_SBT_Reaktion
Reaction:
When two brakes are present (motor brake and external mechanical
brake), the cycle t
2
– t
5
is repeated for the second brake (see timing di-
agram).
 SBT delay time starts
 After SBT delay time: Output "SBC+": "0" Signal, brakes engage
 After delay time: Motor is supplied with 1.3 times the value of the
maximum load.
Forces or torques that already affect the axis must be considered in
the measurement, e.g. suspended loads.
 During the defined period, the safety function SOS monitors the
standstill position
 Brake is vented
 Output "SBT Acknowledge": “1” Signal. Brake test successful
Sicherheitsfunktion_SBT_S1_Diagramm