Fault Code
Fault Name
0216H
Option Receive CRC Error (oFb15)
0217H
Option Receive Frame Error (oFb16)
0218H
Option Receive Abort Error (oFb17)
0232H
Model Code Error (oFb31)
0233H
Sumcheck Error (oFb32)
0234H
Comm. option Timeout Waiting for Response (oFb33)
0235H
MEMOBUS Timeout (oFb34)
0236H
Unit Timeout Waiting for Response (oFb35)
0237H
CI Check Error (oFb36)
0238H
Unit Timeout Waiting for Response (oFb37)
0239H
Control Command Selection Error (oFb38)
023AH
Unit Timeout Waiting for Response (oFb39)
023BH
Control Response Selection 1 Error (oFb40)
023CH
Unit Timeout Waiting for Response (oFb41)
023DH
Control Response Selection 2 Error (oFb42)
023EH
Control Response Selection Error (oFb43)
0301H
Option Compatibility Error (oFC00)
0303H
Option Not Properly Connected (oFC01)
0304H
Same Type of Option Card Already Connected
(oFC02)
Fault Code
Fault Name
0306H
A/D Conversion Error (oFC05)
0307H
Option Response Error (oFC06)
0311H
Option RAM Fault (oFC10)
0312H
Option Operation Mode Fault (SLMOD) (oFC11)
0313H
Unit Receive CRC Error (oFC12)
0314H
Unit Receive Frame Error (oFC13)
0315H
Unit Receive Abort Error (oFC14)
0316H
Option Receive CRC Error (oFC15)
0317H
Option Receive Frame Error (oFC16)
0318H
Option Receive Abort Error (oFC17)
0351H
Encoder Option AD Conversion Error (oFC50)
0352H
Encoder Option Analog Circuit Error (oFC51)
0353H
Encoder Communication Timeout (oFC52)
0354H
Encoder Communication Data Error (oFC53)
0355H
Encoder Error (oFC54)
0356H
Resolver Error (oFC55)
0408H
Damping Resistor Overheat (doH)
0409H
Snubber Discharge Resistor Overheat (SoH)
040AH
Internal Resistance Fault (Srr)
u
Alarm Register Contents
The table below shows the alarm codes that can be read out from MEMOBUS/Modbus register 007FH.
Table C.6 Alarm Register 007FH Contents
Fault Code
Fault Name
0001H
Control Circuit Undervoltage (Uv)
0002H
Control Circuit Overvoltage (ov)
0003H
Heatsink Overheat (oH)
0004H
Heatsink Overheat Warning (oH2)
0005H
Overtorque 1 (oL3)
0006H
Overtorque 2 (oL4)
0007H
Forward/Reverse Run commands input error (EF)
0008H
Baseblock (bb)
0009H
Pump Fault 3, input terminal S3 (EF3)
000AH
Pump Fault 4, input terminal S4 (EF4)
000BH
Pump Fault 5, input terminal S5 (EF5)
000CH
Pump Fault 6, input terminal S6 (EF6)
000DH
Pump Fault 7, input terminal S7 (EF7)
000EH
Pump Fault 8, input terminal S8 (EF8)
000FH
Fan Fault (FAn)
0014H
MEMOBUS/Modbus Communication Error (CE)
0015H
Option Communication Error (bUS)
0016H
Serial Communication Transmission Error (CALL)
001AH
Option Card External Fault (EF0)
001DH
Serial Communication Transmission Error (CALL)
001EH
Undertorque Detection 1 (UL3)
001FH
Undertorque Detection 2 (UL4)
0020H
MEMOBUS/Modbus Communication Test Mode
Error (SE)
0022H
Motor Overheat (oH3)
Fault Code
Fault Name
0027H
PID Feedback Loss (FbL)
0028H
Excessive PID Feedback (FbH)
002AH
Drive Disabled (dnE)
0031H
MECHATROLINK Watchdog Timer Error (E5)
0032H
Station Address Setting Error (AEr)
0033H
MECHATROLINK Comm. Cycle Setting Error
(CyC)
0034H
Current Alarm (HCA)
0035H
Cooling Fan Maintenance Time (LT-1)
0036H
Capacitor Maintenance Time (LT-2)
0037H
Damping Resistor Overheat (doH)
0038H
SI-S EEPROM Error (EEP)
0039H
Pump Fault (input terminal S1) (EF1)
003AH
Pump Fault (input terminal S2) (EF2)
0043H
Soft Charge Bypass Relay Maintenance Time (LT-3)
0045H
Accumulated Level (ACCUM)
0046H
Low Flow (LOWFL)
004AH
High Flow (HIFLO)
004BH
Low Suction (LOSUC)
004CH
Loss of Prime (LOP)
004EH
Underload Detection 6 (UL6)
0050H
Power Supply Undervoltage (AUv)
0053H
Low Feedback Low FB Sensed
0054H
High Feedback High FB Sensed
0056H
Freq. Ref Pump Min (P1-06)
C.9 MEMOBUS/Modbus Data Table
YASKAWA TOEPYAIUPW01A YASKAWA AC Drive - U1000 iQpump Matrix Drive User Manual
403
C
MEMOBUS/Modbus Communications