Toshiba G7 Fault codes
Hi everyone,
CM1: Comm1 Error
- Causes: Improperly programmed ASD, incorrect communication settings, improperly connected cables.
CM2: Comm2 Error
- Cause: External communication error.
EMG: Emergency Off
- Causes: Stop|Reset pressed twice at the EOI, EOFF command received remotely, ASD reset required.
MOFF: Main Undervoltage
- Cause: Low three-phase AC input voltage to the ASD.
OC: Over Current
- Causes: ASD output current greater than F601 setting, defective IGBT (U, V, or W), ASD output to motor connected incorrectly, motor/machine jammed, mechanical brake engaged while ASD is starting or running.
OH: Overheat
- Causes: ASD operating at elevated temperature, ASD too close to heat-generating equipment, cooling fan vent obstructed.
OJ: Timer
- Cause: Runtime counter exceeded.
OLI: ASD Overload
- Causes: Carrier frequency too high, excessive load, acceleration time too short.
OLM: Motor Overload
- Causes: V/f parameter improperly set, motor is locked, continuous operation at low speed.
OLR: Resistor Overload
- Causes: Deceleration time too short, DBR configuration improperly set.
OP: Overvoltage
- Causes: ASD attempting to start into a spinning motor after a momentary power loss, incoming utility power is above the specified range.
OT: Overtorque
- Causes: ASD not correctly matched to the application, obstructed load.
POFF: Control Undervoltage
- Causes: Defective control board, excessive load on power supply.
PtSt: Reference Point
- Cause: Two speed-reference frequency setpoints are too close to each other.
UC: Undercurrent
- Causes: Output current of the ASD is below the level defined at F611 and remains there for the time set at F612.
These error codes provide vital information about the operational states and potential issues with the Toshiba G7 ASD, aiding users in more effectively managing and troubleshooting the device.
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