YASKAWA E7N Technical Manual page 260

Monitor Data
The following table shows the monitor data. Monitor data can only be read.
Register No.
Drive status
0020H
Bits 8 to F
Fault details
0021H
Data link status
0022H
Bits 5 to F
0023H Frequency reference
0024H Output frequency
0025H Output voltage reference U1-06
0026H Output current
0027H Output power
0028H Torque reference
0029H Not used
002AH Not used
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Table D.5 Monitor Data
Bit 0 Operation 1: Operating 0: Stopped
Bit 1 Reverse operation 1: Reverse operation 0: Forward operation
Bit 2 Drive startup complete 1: Completed 0: Not completed
Bit 3 Fault 1: Fault
Bit 4 Data setting error 1: Error
Bit 5 Multi-function digital output 1 (terminal M1 - M2) 1: ON 0: OFF
Bit 6 Multi-function digital output 2 (terminal M3 - M4) 1: ON 0: OFF
Bit 7 Not used
Not used
Bit 0 Overcurrent (OC) Ground fault (GF)
Bit 1 Main circuit overvoltage (OV)
Bit 2 Drive overload (OL2)
Bit 3 Drive overheat (OH1, OH2)
Bit 4 Not used
Bit 5 Fuse blown (PUF)
Bit 6 PI feedback reference lost (FbL)
Bit 7 External error (EF, EFO)
Bit 8 Hardware error (CPF)
Bit 9 Motor overload (OL1) or overtorque 1 (OL3) detected
Bit A PG broken wire detected (PGO), Overspeed (OS), Speed deviation (DEV)
Bit B Main circuit undervoltage (UV) detected
Main circuit undervoltage (UV1), control power supply error (UV2), inrush prevention
Bit C
circuit error (UV3), power loss
Bit D Missing output phase (LF)
Bit E Modbus communications error (CE)
Bit F Operator disconnected (OPR)
Bit 0 Writing data
Bit 1 Not used
Bit 2 Not used
Bit 3 Upper and lower limit errors
Bit 4 Data integrity error
Not used
U1-01
U1-02
U1-03
U1-08
U1-09
Communications D - 11
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