TM 5-3895-374-24-1 Serial link Fault register FLT (W21) Read only W21,0 INF Internal speed controller fault (*) W21,1 SLF Communication fault W21,2 - Reserved W21,3 SRF Fault following a TST command W21,4 USF Mains too low W21,5 OSF Mains too high W21,6 PHF Mains phase (s) failure W21,7 OHF Speed controller overtemperature W21 8 SPF Overspeed (operating with TG) W21,9 OCF- Overcurrent(’) W21,A OBF Overbraking W21,B OBF- Overhauling load current W21,C OLF Motor overload W21,D OLF- Current too low or motor phase failure (*) W21,E - Reserved W21,F CRF Load relay fault (models ? 37 kW) (*) These faults cannot be corrected and are not accepted by the serial link Table of ASCII DEC HEX CHARACTERS characters used 10 OA LF line feed 13 OD CR carnage return 32 20 SP space 43 2B + 45 2D - 48 30 0 49 31 1 50 32 2 51 33 3 52 34 4 53 35 5 54 36 6 55 37 7 56 38 8 57 39 9 62 3E > 63 3F 7 64 40 @ 65 41 A 66 42 B 67 43 C 68 44 D 69 45 E 77 40 M 78 4E N 89 59 Y (page 3-271)