Common Cause Failure (CCF) >65
Installation requirements
Max. installation altitude 2000 m
Pollution Degree PD 2
Supported Motors 1 × 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 61800-5-1:2007. 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.
PD2 environment can be reached for example with environmentally controlled location which does not
contain conductive contamination or by using IP54 enclosure according to IEC 60529:1989 + A1:1999 +
A2:2013.
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
See safety diagnostic section
De-activation time 10 ms
Safe brake output (SBC)
Number of digital outputs 2 (dual-channel safety output for one brake
system)
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