[ 26 ] lok Password protection ··············································································· 6-20
[ 27 ] lU Undervoltage ·························································································· 6-20
[ 28 ] nrb NTC wire break error ·············································································· 6-20
[ 29 ] 0Cn Instantaneous overcurrent ······································································· 6-21
[ 30 ] 0H1 Cooling fin overheat ··············································································· 6-22
[ 31 ] 0H2 External alarm ······················································································· 6-22
[ 32 ] 0H3 Inverter internal overheat ········································································· 6-22
[ 33 ] 0H4 Motor protection (PTC/NTC thermistor) ······················································· 6-23
[ 34 ] 0H6 Charging resistor overheat ······································································· 6-23
[ 35 ] 0ln Motor overloads 1 to 4 ············································································ 6-24
[ 36 ] 0lU Inverter overload ···················································································· 6-25
[ 37 ] 0pl Output phase-failure detection ·································································· 6-26
[ 38 ] 0s Overspeed protection ················································································ 6-26
[ 39 ] 0Un Overvoltage ·························································································· 6-27
[ 40 ] Pbf Charge circuit fault (FRN0008G2S-2G/FRN0004G2□-4G or above) ················· 6-27
[ 41 ] pG PG wire break ························································································· 6-28
[ 42 ] d0 Excessive positioning deviation ··································································· 6-28
6.4 If a Warning Code is Displayed ················································································ 6-29
6.4.1 Warning code list··························································································· 6-29
6.4.2 Warning cause and check ··············································································· 6-29
[ 1 ] CnT Machine life (Number of startups) ······························································ 6-29
[ 2 ] iGb IGBT lifetime alarm ················································································ 6-29
[ 3 ] lif Lifetime alarm ······················································································· 6-29
[ 4 ] OH Cooling fin overheat early warning ······························································· 6-30
[ 5 ] Ol Motor overload early warning ······································································ 6-30
[ 6 ] pid PID alarm output ···················································································· 6-30
[ 7 ] pTC PTC thermistor activated ········································································· 6-30
[ 8 ] rAf Cooling capability drop ············································································ 6-30
[ 9 ] ref Reference loss ······················································································ 6-30
[ 10 ] rTe Machine life (Cumulative motor running hours) ············································· 6-30
[ 11 ] UTl Low torque detection ·············································································· 6-31
[ 12 ] Lob Low battery warnig (for Multi-function Keypad (TP-A2SW)) ···························· 6-31
6.5 Other Errors ········································································································ 6-32
6.5.1 Abnormal motor operation ··············································································· 6-32
[ 1 ] The motor does not rotate ··············································································· 6-32
[ 2 ] The motor rotates, but the speed does not increase ·············································· 6-34
[ 3 ] The motor runs in the opposite direction to the command ······································· 6-35
[ 4 ] Speed fluctuation or current oscillation (e.g., hunting) occurs during running
at constant speed ·························································································· 6-36
[ 5 ] Unpleasant noises are emitted from motor or noises fluctuate ································· 6-37
[ 6 ] Motor is not accelerated or decelerated according to set-up acceleration
or deceleration times ······················································································ 6-38
[ 7 ] The motor does not restart even after the power recovers
from a momentary power failure ······································································· 6-39
[ 8 ] Motor generates heat abnormally ······································································ 6-39
[ 9 ] The motor does not run as expected ································································· 6-39
[ 10 ] Motor stalls during acceleration ········································································ 6-40
6.5.2 Problems with inverter settings ········································································· 6-41
[ 1 ] Nothing appears on the keypad ········································································ 6-41
[ 2 ] The desired menu is not displayed ···································································· 6-41
[ 3 ] Display of under bars (_____) ······································································· 6-41
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