Specifications

EV Inverter Operating Manual
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TECO – Westinghouse Motor Company 53
C54/C55 Communication error parameter timing pattern
NOTE : COT = communication time out fault
Master
Slave
(EV)Tx
T3 > C54
F21=014 or C46=014
T3
T2
T1
0, 1, 2 (≠3)
000  Dec from F02
002  Dec from C12
If F02＜C12
MF Output
RY1 / T+/T-
Frequency
001  free Run
Frequency
C55=001
003  continue Run mode
―COT‖
Display always shows
―COT‖ until Reset
Display
0,1,2,3
Reset or Master send data
Reset
Master
Command
Run Command
(only F04=002)
Communication
mode
2
0
1
Frequency
C55=000 or 002
C55=003
Fig. 11.15 Communication error timing pattern