Safety specifications

System requirements

Required Firmware

  • v4.2.0 or higher

Supported Hardware

  • SOMANET Circulo 7

  • SOMANET Circulo 9

Technical specifications

Safety parameters

Safety Integration level (SIL) according to IEC 61508:2010

SIL 3

Performance Level (PL) according to ISO 13849-1:2015

PL e cat. 3

Safe Failure Fraction (SFF)

TBD

Probability of dangerous failure per hour (PFH d)

TBD

Probability of dangerous failure on demand (PFD avg)

TBD

Common Cause Failure (CCF)

TBD

Hardware Fault Tolerance (HFT)

1

Reaction time

10 ms

De-activation time

10 ms

Mean Time to dangerous Failure (MTTF d)

TBD

Diagnostic coverage (DC avg)

TBD

HW-type

Type A

Mission time T M

TBD

Installation requirements

Max. installation altitude

2000 m

Pollution Degree

PD 2

Supported Motors

1 x 3-phase BLDC-Motor and 1 active brake

Attention

Servo drives including STO-SBC module shall be used only in Pollution Degree environments class PD 2 according to IEC 61800-5-1: During normal operation only non-conductive pollution may occur, temporarily occurring conductivity caused by condensation may only be expected when the servo drive is out of operation.

Safe digital inputs (STO-SBC input)

Number of digital inputs

2 (dual-channel safety input for activating STO-SBC function)

Digital input type according to IEC61131-2:2007

Type 1

Voltage range

0-60 VDC

Max. transient input voltage

80 VDC

Input voltage, logic 1

15-60 V

Input voltage, logic 0

0-5 V

Input current

Max. 6 mA (@24 VDC)

Test pulse toleration (OSSD pulses)

Max. 1 ms

Reverse voltage protected

Yes

Allowed discrepancy between digital inputs

100 ms

Safe brake output (SBC)

Number of digital outputs

2 (dual-channel safety output for one brake system)

Max. output voltage

Servo drive main power supply (48 VDC)

Min. output voltage

0 V

Max. current.

1 A

Max. peak current.

4 A

Note

This PWM controlled brake is configured by the same object as the regular brake.