Parker IQAN-XA2 Instruction Book

36Failure ModesAppendix DInstruction book, IQAN-XA2Failure modes in PWM modeTable below presents failure modes and effects on I/O.Failure mode Effect aa. Turning off outputs are controlled by CAN master and therefore delayed by maximum2 bus cycles. If local error handling is enabled the output will turn off locally withoutdelay.1 H-side Open PWMOUT error, output turned off2 L-side (active) Open PWMOUT error, output turned off3 L-side (passive) Open Not detected, will not influence function4 H-side Short-circuit to L-side(active) PWMOUT error, output turned off bb. Turned off by integrated protection functions in IC.5 H-side Short-circuit to L-side(passive)Not detected, will not influence function6 H-side Short-circuit to +BAT PWMOUT error, output turned off7 H-side Short-circuit to - BAT PWMOUT error, output turned off b8 L-side (active) Short-circuit to+BAT PWMOUT error, output turned off b9 L-side (active) Short-circuit to- BATNot detected, will not influence function10 L-side (passive) Short-circuit to+BATNot detected, will not influence function11 L-side (passive) Short-circuit to- BATNot detected, + and - direction activated withoutmovement as result.12 H-side Short-circuit to 2:ndL-side (active) PWMOUT error, output turned off b13 H-side Short-circuit to 2:ndL-side (passive)Not detected, will not influence function14 L-side Short-circuit to 2:nd L-side(active)Not detected, will not influence function15 L-side Short-circuit to 2:nd L-side(passive)Not detected, will not influence function16 Insufficient Voltage Not detected, lower max speed limit on function

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