Abnormal operation Appendix B ) ^ O& Z8 M* G: V: j# l" a
B19.101 to B19.103 6 p, I! Q* K. e9 y0 R+ e3 h5 _' n
60335-1(ed.2)% J- H$ L# X) L6 {( m/ _* @* @
1 }2 x& X0 ~; G2 Q$ RStandard: IEC 60335-1:1976, 2nd Ed.3 w( Q$ d) M2 M6 c" e5 N: z3 G l
Sub clause: B19.101 to B19.103 4 E. s) ~$ Q5 M5 x9 _Sheet No. DSH 470 ' ~( L0 ]' E8 `2 a! T Q# S% lSubject: Abnormal operation Appendix B ) i' o$ V- j! c' fKey words: - electronic controls - electronic components1 @2 k) F; H8 i1 T
Decision taken at the 40th CTL meeting 2003) M+ P S: S. C
Question: * P' y1 T! s) lHow are the test results evaluated when testing speed control units for series motors?8 g0 v- ^# Z9 g1 r0 [
Rationale:* T2 o5 i0 p4 f, h
See question. q7 [+ Y6 s$ w: f: \3 jDecision:/ o$ _" ?$ r: f b+ }6 h
Rapid reversal of the motor rotation and jumping of the appliance during short-circuiting of 9 H, Y+ ~9 h7 C- O1 Gthe electronic control is checked during 1 complete cycle. The fault is introduced from the 9 \ G3 u" ^4 j+ j$ k3 q8 W0 dbeginning. The jumping is judged for the possible mechanical risk. After the test the/ m4 R1 `% |5 c# {7 o
appliance is checked for consequential faults or breaks.5 [6 D1 l& P* {" q. E
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[attach]75862[/attach] / i$ l, j( K2 ?5 G1 v4 C! V6 g
DSH 470