Pilz PMCprimo DriveP.01/AA0/4/0/0/208-480VAC - Manual (Page 48)

4.3 Safety functions
4 Function Description
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Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: [email protected]
4-30
4.3.8 Safe brake control - SBC
Safe brake control - SBC 4- Sicherheitsfunktion_SBC_Ueber
The safety function "safe brake control" (SBC) is used to control external
brakes.
Features of the safety function:
 After executing safety functions STO and SS1, an additional mechan-
ical brake is required to eliminate hazards, particularly where external
forces influence the motor axis (e.g. suspended loads).
 The internal motor brake is controlled directly from the servo amplifier
when the motor is switched on/off.
 An external mechanical brake is controlled via the 2-pole output
"SBC+/SBC-" on the safety card.
 Safety function SBC is activated in conjunction with safety function
STO. SBC must be activated in the Configurator for this purpose.
Sicherheitsfunktion_SBC_Wichtig
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_Sxx_Voraussetzung_SIL3  To achieve SIL3 or Ple: Connect the output "STO SIL3" to servo am-
plifier terminal X4A/ 3.
Sicherheitsfunktion_SBC_Ausloesung
Safety function is activated
 Safety function STO
Sicherheitsfunktion_SBC_Reaktion
Reaction:
 Output "SBC+/SBC-": "0" Signal (0 VDC)
 Both outputs are simultaneously set to a "0" Signal: Voltage differ-
ence of 0 V between SBC+ and SBC-.
Sicherheitsfunktion_SBC_S1_Diagramm
NOTICE
Please note: when using a safe holding brake on vertical axes, a
motor brake must be available.