Toshiba Q9+ Plus Drives

Toshiba Q9+ Plus Drives Fault Codes:

Fault Code and Meaning	Cause and Remedy
Atn Autotune Active	Cause: Autotune function is active. Remedy: Information only; wait for completion.
nErr No Error	Cause: No active errors. Remedy: None required.
LOFr Virtual Linear Pump Low Frequency	Cause: Virtual Linear Pump function is operating at the Low-Frequency Limit setting. Remedy: Information only.
Pump Virtual Linear Pump On	Cause: Virtual Linear Pump function is enabled and active. Remedy: Information only.
4-20 mA 4-20 Signal Loss	Cause: Misconnection, poor connection, or broken wire. Improper programming at F201 and associated parameters. Remedy: Check wiring and connections. Verify parameter F201 settings.
*OL1 ASD Overload	Cause: Carrier frequency is too high. Excessive load. Acceleration time is too short. DC damping rate is too high. Motor is starting into a spinning load after a momentary power failure. ASD is improperly matched to the application. Remedy: Reduce carrier frequency or load. Increase acceleration time. Check DC damping settings.
CM1 Comm Error Interruption	Cause: Improperly programmed ASD. Improper communications settings. Remedy: Verify ASD programming and communication settings.
CM2 Comm Error 2	Cause: Improperly connected cables. Remedy: Check communication cables and connections.
DAMP Damper Closed	Cause: Improper configuration/programming for Damper Control at discrete input terminals. Remedy: Check Damper Control configuration.
*OP DC Bus Over-Volts	Cause: ASD is attempting to start into a spinning motor after a momentary power loss. Incoming commercial power voltage level is above the specified range. Deceleration time is too short. Voltage spikes at the 3-phase input. Over-Voltage Stall feature is turned off. System is regenerating / Load fluctuations. Remedy: Install inductive filter if spikes are present. Increase deceleration time. Enable Over-Voltage Stall feature.
*POFF DC Under-Volts	Cause: Defective control board. Excessive load on power supply. Low input voltage. Remedy: Check input voltage. Check for excessive load.
E Emergency Off	Cause: Stop-Reset was pressed twice at the EOI. E-OFF command was received remotely. Remedy: Reset the system.
HLd Heavy Load	Cause: Acceleration time is too short. ASD is improperly matched to the application. Excessive load. Remedy: Increase acceleration time. Verify drive sizing for the load.
LLd Light Load	Cause: ASD is improperly matched to the application. Remedy: Verify drive sizing.
LLt Lower Limit Time	Cause: Lower-Limit Time reached. Remedy: Parameter F256 adjustment is required.
MOFF Main Under-Volts	Cause: 3-phase input voltage low. Defective control board. Excessive load on power supply. Remedy: Under-Voltage/Ridethrough settings require adjustment.
OLM Motor Overload	Cause: V/f setting requires adjustment. Motor is locked. Continuous operation at low speed. Motor is improperly matched to the load. Remedy: Adjust V/f settings. Check for mechanical binding/locking.
OC Over-Current	Cause: Phase-to-phase short (U/T1, V/T2, or W/T3). Defective IGBT. ASD output to the motor is connected incorrectly. ASD is attempting to start into a spinning motor. Motor/machine is jammed. Mechanical brake engaged while ASD is running. Acceleration/deceleration time is too short. Voltage Boost setting is too high. V/f setting adjustment is required. Remedy: Check motor and cabling for shorts. Adjust Acceleration/Deceleration times. Check mechanical brakes and load.
*OH Over-Heating	Cause: ASD is operating at an elevated temperature. ASD is too close to heat-generating equipment. Cooling fan vent is obstructed. Cooling fan is inoperative. Internal thermistor is disconnected. Remedy: Check cooling fans and vents. Ensure proper ambient temperature and clearance.
Ot Over-Torque	Cause: ASD is improperly matched to the application. Parameter F616 or F617 setting is too low. Obstructed load. Remedy: Adjust parameters F616 or F617. Check for load obstructions.
LtA Part Replace	Cause: Part Replacement Alarm at F634 timed out. Remedy: Perform required maintenance and reset timer.
OJ Run-Time Counter	Cause: User-Set Run-Time Counter Exceeded. Remedy: Type Reset is required; select Clear run timer.
OLSt Soft Stall	Cause: Overload Soft Stall Active. Remedy: Soft Stall selection adjustment is required (F017).
PtC Thermal Err	Cause: Option Thermal Sensor Threshold Exceeded. Remedy: User-set thermal threshold setting of F646 is exceeded.
UC Under-Current	Cause: Output Current of the ASD is Below the Level Defined at F611. Remedy: Disable detection at F610. Parameter F611 adjustment is required.
E-19 Abnormal CPU2	Cause: Abnormal CPU2 Communication. Remedy: Service call is required.
E-18 Analog Input Loss	Cause: V/I input terminal configured for operation but the voltage/current input is either missing or low. Over-current at P24. Remedy: Check analog input signals and P24 connection.
E-10 Analog Input OV	Cause: Analog Input Terminal Over-Voltage. Remedy: Mis-wire at the ASD input terminals; check wiring.
OL1 ASD Overload (Trip)	Cause: Acceleration time is too short. DC Injection current is too high. V/f setting needs to be adjusted. Motor is running during restart. ASD/motor is improperly matched to the application. Remedy: Adjust acceleration time or DC Injection settings. Adjust V/f settings.
Err2 ASD RAM Fault	Cause: ASD RAM Fault. Remedy: Service call is required.
Err3 ASD ROM Fault	Cause: ASD ROM Fault. Remedy: Service call is required.
EtyP ASD Type Error	Cause: Firmware information (typeform) loaded into the Application Board is inconsistent with the Motor Control Board. Application Board or Motor Control Board is defective. Remedy: Service call is required.
E-26 CPU Fault	Cause: CPU Fault. Remedy: Service call is required.
EEP2, EEP3 Ctrl Read Err	Cause: Initial Read Error (Parameter Initialization). Remedy: Service call is required.
Err7 Current Err	Cause: Current Detection Hardware Error. Improper low-current detection level setting. Motor (phase) is disconnected. Remedy: Check motor connections. Check detection level settings.
E-22 Discrete In Volts	Cause: Discrete input terminal configured for operation and the input activation voltage level is out of specification. Remedy: Check input voltage levels.
EEP1 EEPROM Write Err	Cause: EEPROM Fault (Writing Error). Remedy: Service call is required.
Etn Autotuning Err	Cause: Autotune readings are inconsistent with the configuration. Non-3-phase motor is being used. Improper settings at F400 or F410 – F413. Using a motor with significantly smaller rating than ASD. ASD output cabling is too small/long or has EMF interference. Motor is running during Autotune. Remedy: Verify motor type and ratings. Check parameters F400-F413.
Etn2 Leak Inductance Err	Cause: Autotuning Error — Leak Inductance Error. Remedy: Improper setting at F412; adjust setting.
Etn3 Motor Rating Err	Cause: Autotuning Error — Motor Rating Error. Remedy: Improper setting at F405, F406, or F407; adjust settings.
Etn1 Torque Boost Err	Cause: Autotuning Error — Torque Boost Error. Remedy: Improper setting at F410; adjust setting.
E Emergency Off (Trip)	Cause: Stop-Reset was pressed twice at the EOI. E-Off command was received remotely. Remedy: Select stopped method at F603.
E-12 Encoder Loss	Cause: Encoder signal is not received. Remedy: Check encoder connections.
Err6 Gate Array Fault	Cause: Defective gate array or gate array malfunction. Remedy: Service call is required.
EF1, EF2 Ground Fault	Cause: Mis-wired ground. Loose ground connection. Remedy: Check ground wiring and connections.
EPH1 Input Phase Failure	Cause: Mis-wired input phase. Loose input phase connection. Remedy: Check input phase wiring.
UC Low-Current (Trip)	Cause: Improper low-current detection level setting. Remedy: Adjust detection level setting.
Err8 Net Card Err	Cause: Optional device malfunction. Improper system settings (at ASD or optional device). Loose or improper connection. Remedy: Check network option card settings and connections.
OH2 Option Over-Heat	Cause: Over temperature condition detected by option board. Remedy: Check PTC1 or PTC2 (see F637 and F638).
EPH0 Output Phase Failure	Cause: Mis-wired output phase. Loose output phase connection. Remedy: Check output wiring.
OCL Output Short	Cause: ASD is starting into a rotating motor. Phase-to-phase short (U/T1, V/T2, or W/T3). Acceleration time is too short. Motor/machine is jammed or brake engaged. Remedy: Short Circuit Detection adjustment is required (F613). Check motor and mechanical systems.
OC1, OC1P Over-Current Acc	Cause: V/f setting needs to be adjusted. Restart from a momentary power outage. Phase-to-phase short. Acceleration time is too short. Remedy: Adjust V/f or acceleration settings. Check for shorts.
OC2, OC2P Over-Current Dec	Cause: Deceleration time is too short. Motor/machine is jammed or brake engaged. Remedy: Increase deceleration time. Check mechanical system.
OC3, OC3P Over-Current Run	Cause: ASD/Motor is improperly matched to the application. Load fluctuations. ASD is operating at an elevated temperature. Remedy: Check load and drive sizing. Check environmental conditions.
E-13 Over-Speed	Cause: Motor speed greater than commanded speed. Improper encoder connection or setup. Defective encoder. Remedy: Check encoder and speed control settings.
Ot Over-Torque (Trip)	Cause: Output torque requirement in excess of F616 or F617 settings for longer than F618 setting. Remedy: Adjust torque limit settings.
OP1 Over-Voltage Acc	Cause: Motor is running during restart. Remedy: Stop motor before restart or use catch-spin.
OP2 Over-Voltage Dec	Cause: Deceleration time is too short. Stall prevention is disabled. Input reactance is required. Remedy: Increase deceleration time. Enable stall prevention.
OP3 Over-Voltage Run	Cause: Load fluctuations. 3-phase input voltage out of specification. Remedy: Check input voltage stability and load.
E-21 Stack Err	Cause: Stack Overflow Error. Remedy: Service call is required.
SOut Step-Out (PM)	Cause: Step-Out (For PM Motors Only). Remedy: Service call is required.
OCA1 U-Phase OC	Cause: U-Phase Over-Current (Low impedance at U/T1 phase). Remedy: Check motor winding/cabling for short.
OCA2 V-Phase OC	Cause: V-Phase Over-Current (Low impedance at V/T2 phase). Remedy: Check motor winding/cabling for short.
OCA3 W-Phase OC	Cause: W-Phase Over-Current (Low impedance at W/T3 phase). Remedy: Check motor winding/cabling for short.