Parker iqan-mc3 - Page 61

58
Failure modes
Appendix B
Instruction book, IQAN-MC3
Off
Failure mode Detected Comment
DOUT open •
DRET open •
DOUT short circuit to DRET No influence on function in this state.
DOUT short circuit to +BAT Reverse feed *.
No influence on function in this state.
DOUT short circuit to -BAT • Detected, or fuse blows.
DRET short circuit to +BAT Reverse feed *.
No influence on function in this state.
DRET short circuit to -BAT • Current through load, < 100 ms
DOUT short-circuit to 2
nd
DOUT (active/
passive)
No influence on function in this state.
DOUT short-circuit to 2
nd
COUT (active)
•
DOUT short-circuit to 2
nd
COUT
(passive)
No influence on function in this state.
DOUT short circuit to 2
nd
CRET (active)
No influence on DOUT (error detected
on 2
nd
COUT).
DOUT short circuit to 2
nd
DRET (active)
• Detected, or fuse blows.
DOUT short circuit to 2
nd
CRET/DRET
(passive)
No influence on function in this state.
DRET short circuit to 2
nd
DRET (active)
•
DRET short circuit to 2
nd
CRET/DRET
(passive)
No influence on function in this state.