ABB ACS800

A failure has occurred in the current transformer circuit responsible for output current measurement in the ABB ACS800 drive. This prevents the drive from accurately monitoring motor current, which is critical for motor protection, torque control, and overall drive operation.

The ABB ACS800 drive has detected an unbalance in the load current, typically indicating an earth fault in the motor or its power cables, or excessive output current unbalance in a specific inverter module (xx refers to module number 1-12) of parallel-connected inverter units. This fault (3.08 AW 1 bit 14, 3.05 FW 1 bit 4, 4.01) protects against insulation breakdown and potential equipment damage or safety hazards, and is controlled by programmable Fault Function 30.17.

Excessive intermediate circuit DC voltage has been detected in the ABB ACS800 drive. The DC overvoltage trip limit is calculated as 1.3 × 1.35 × U1max, where U1max is the maximum supply voltage. For a 400V unit (U1max = 415V), the trip level is 728V DC; for 500V units (U1max = 500V), it's 877V DC; and for 690V units (U1max = 690V), it's 1210V DC.

The ABB ACS800 drive is limiting torque due to the intermediate circuit DC voltage being either too high or too low. This is an informative alarm (3.18 AW5 bit 9) that indicates the drive is actively protecting itself by adjusting its output, and its behavior can be configured via programmable Fault Function 30.23.

The intermediate circuit DC voltage in the ABB ACS800 drive is insufficient. The DC undervoltage trip limit is 0.6 × 1.35 × U1min, where U1min is the minimum supply voltage. For 400V and 500V units (U1min = 380V), the trip level is 307V DC; for 690V units (U1min = 525V), it's 425V DC.

The ABB ACS800 control board temperature has exceeded 88°C, indicating an overheating condition of the drive's sensitive control electronics. Sustained high temperatures (3.06 FW 2 bit 7) can lead to unreliable operation, premature component aging, or permanent damage to the control board.

The ABB ACS800 drive has detected or estimated that the motor temperature is too high. This condition (3.08 AW 1 bit 3) can be caused by excessive load, an undersized motor, inadequate cooling, or incorrect drive configuration, potentially leading to motor winding damage or premature failure. It is controlled by programmable Fault Function parameters 30.04 to 30.09.

The measured temperature from motor sensor 1, connected to the ABB ACS800 drive, has exceeded the alarm limit set by parameter 35.02. This fault (3.16 AW 4 bit 1) indicates a detected overheating condition in the motor, requiring immediate attention to prevent winding damage or component failure.

The measured temperature from motor sensor 2, connected to the ABB ACS800 drive, has exceeded the alarm limit set by parameter 35.05. This fault (3.16 AW 4 bit 2) indicates a detected overheating condition in the motor, requiring immediate attention to prevent winding damage or component failure.

Communication with the control panel, which is currently selected as the active control location for the ABB ACS800 drive, has been lost. This fault (3.09 AW 2 bit 13) can lead to a loss of control and monitoring capabilities from the panel, and its behavior is governed by programmable Fault Function 30.02 (PANEL LOSS).

A communication error has occurred on the ACS800 control board, specifically on channel CH1. This typically indicates a problem with the data exchange between the control board and connected I/O modules or external devices, often due to electromagnetic interference.

The brake resistor connected to the ABB ACS800 drive has been incorrectly wired, or there is a fault in the resistor's internal wiring or connections. Incorrect wiring (3.17 FW 5 bit 1) can prevent proper braking operation, lead to unexpected drive behavior, and potentially cause damage to the drive or resistor.

The brake resistor connected to the ABB ACS800 drive is experiencing an overload condition, leading to excessive temperature. This fault (3.17 FW 5 bit 3) can reduce braking effectiveness, potentially damage the resistor or associated components, and indicates that the braking duty cycle may be too demanding or improperly configured.

The motor is operating in a stall region, indicating it is unable to rotate or maintain its commanded speed due to excessive mechanical resistance or insufficient power. This fault is linked to programmable Fault Function parameters 30.10, 30.11, and 30.12.

A communication fault has occurred within the pulse encoder feedback system of the ABB ACS800 drive. This fault (3.08 AW 1 bit 5) can signify an issue between the pulse encoder and its interface module, or between the interface module and the drive, indicating a general problem with the encoder feedback system that affects motor control.

The phasing of the pulse encoder connected to the ABB ACS800 drive is incorrect; specifically, phase A is connected to the terminal intended for phase B, and vice versa. This results in inverted or incorrect speed and position feedback (3.09 AW 2 bit 4), leading to motor instability or incorrect direction of rotation.

A phase signal (A, B, or Z) from the pulse encoder connected to the ABB ACS800 drive is missing. This indicates a loss of positional feedback from the motor, which can lead to unstable motor operation, uncontrolled movement, or incorrect speed regulation. This fault (3.31 AW 6 bit 3) is related to programmable Fault Function 50.07.

Cyclical communication between the drive (ABB ACS800) and the master control system has been lost. This can be due to issues with the fieldbus adapter, its configuration, or the physical communication link, preventing proper control and monitoring of the drive. The fault is indicated by 3.08 AW 1 bit 12 (or 3.06 FW 2 bit 12) and is controlled by programmable Fault Function 30.18 and 30.19.

The analogue input signal to the ABB ACS800 drive has fallen below its set minimum limit. Depending on parameter 30.01 (AI<MIN FUNCTION), this condition can cause the drive to trip on a fault and coast to a stop, or generate a warning while setting speed to a constant value or the last operating speed.

A fault condition has been reported by an external device connected to the ABB ACS800 drive. This information is typically transmitted via a programmable digital input to the drive. This protection is linked to programmable Fault Function 30.03.

The inverter type (e.g., sr0025_3) of the ABB ACS800 drive has been changed, typically during factory setup or drive implementation. This alarm indicates that the new inverter hardware configuration needs to be validated by a power cycle of the control board.

This alarm indicates that the inverter type (e.g., sr0025_3) of the ABB ACS800 drive has been changed, usually at the factory or during drive implementation. It requires a complete control board power cycle to validate the new configuration and apply the changes. This fault typically activates after an 'HW RECONF RQ' (FF38) alarm.

This fault indicates an issue on the line side converter of the ABB ACS800 drive. The specific nature of the fault requires further investigation using the line side converter's own diagnostics.

This fault indicates that essential motor data parameters have not been entered into the ABB ACS800 drive, or the entered data is inconsistent with the connected motor or inverter. Without correct motor data, the drive cannot operate optimally or safely.

One of the motor phases has been lost, causing an imbalance in the motor current. This can be due to a fault in the motor, motor cable, external thermal relay, or an internal drive issue. This protection is linked to programmable Fault Function 30.16.

The ABB ACS800 drive's supply voltage is excessive, exceeding 124% of the unit's voltage rating (e.g., 415V, 500V, or 690V). When this occurs, the motor speed can rush to a trip level (40% of nominal speed), indicating a potentially damaging overvoltage condition on the DC link.

The temperature of the drive output filter (choke) in the ABB ACS800 (step-up drives) is excessive. This supervision indicates potential overheating of the filter components, which can lead to reduced lifespan, degraded performance, or failure of the output filter.

The temperature of the drive output filter fan in the ABB ACS800 (step-up drives) is excessive. This supervision (3.16 AW 4 bit 0) indicates potential overheating of the output filter components, which can lead to reduced lifespan, degraded performance, or failure of the filter.

The ABB ACS800 drive is actively limiting motor torque based on the calculated motor pull-out torque limit and the minimum/maximum torque limits defined by parameters 20.13 (MIN TORQ SEL) and 20.14 (MAX TORQ SEL). This is an informative alarm (3.18 AW 5 bit 11) indicating the drive is operating near its torque boundaries, and its behavior can be configured via Fault Function 30.23.

The ABB ACS800 drive is actively limiting motor power according to the limits defined by parameters 20.11 (P MOTORING LIM) and 20.12 (P GENERATING LIM). This is an informative alarm (3.18 AW 5 bit 12) indicating the drive is operating near its power boundaries, potentially due to application demands or restrictive parameter settings, and its behavior can be configured via Fault Function 30.23.

An overtemperature condition has been detected in the AINT board of the inverter module within the ABB ACS800 drive. This indicates that the operating temperature of this critical control board has exceeded its safe limit, posing a risk of component damage.

An overtemperature condition has been detected in the choke of the liquid-cooled R8i inverter module of the ABB ACS800 drive. This indicates that the choke's operating temperature has exceeded its safe limit, which can lead to reduced performance or damage.

A source selection (pointer) parameter within the ABB ACS800 drive is configured to point to a non-existent parameter index. This indicates an invalid configuration within the drive's parameter settings, which can lead to incorrect operation or control logic.