SEW MOVIDRIVE MD60A Inverter Guide

5.2 Environment and Rating Reduction

Environmental temperature: 0 ° C to+50 ° C (VFC mode, 4kHz carrier frequency). If the ambient temperature exceeds 40 ° C and a 125% overload is required, or if the carrier frequency is increased to 8kHz, the equipment must be downgraded for use, with a typical downgrade of 3.0% I-N per Kelvin.

Altitude: No need to downgrade below 1000 meters; From 1000 meters to 2000 meters, the weight will decrease by 1% for every 100 meters increase.

5.3 Electronic Data Interface

Analog input (X11): AI1 supports 0-10V or -10V-10V, with a resolution of 12 bits. The signal type can be switched through the S11 switch.

Auxiliary voltage output (X10/X13): Provides 24V DC, maximum 200mA per channel. If the external load exceeds the total current of 400mA, an external 24V power supply must be connected to X10:9 (VI24).

Relay output (X10:4-6): The contact capacity is 30V DC/800 mA, which can be used to provide feedback on operating status or fault signals.

Fault diagnosis and maintenance

The Operation and Service chapter defines a standardized troubleshooting process.

6.1 Display and Status Code

7-segment code display: displays hexadecimal status during normal operation. For example, "0" indicates that the inverter is not ready; 4 "represents VFC mode; The flashing 'F' indicates a fault.

DBG11A information: The screen will display specific fault text, such as FAULT xxxx or NOTE xxxx.

6.2 Common Fault Code Analysis

Fault code description triggering mechanism and countermeasures

Reason for overcurrent: output short circuit, excessive motor or damaged output stage.

Countermeasure: Check the insulation and wiring of the motor; Replace the low-power motor for testing.

Reason for DC bus overvoltage: Short deceleration time leads to excessive regenerative energy.

Countermeasure: Extend the deceleration ramp time; Check if the brake resistor wiring is open.

08 n - Monitoring (speed monitoring) reason: encoder connection error or direction reversal; Mechanical blockage.

Countermeasure: Exchange A/A and B/B signal pairs; Check the mechanical load.

Reason for encoder malfunction: Poor shielding contact or broken wire of encoder cable.

Countermeasure: Check the fixing condition of the shielding layer of the Sub-D plug housing.

31 TF/TH sensor response reason: Motor overheating or temperature sensor not connected.

Countermeasure: Cooling the motor; If TF is not connected, it is necessary to short-circuit X10:1-2 or set P835 to "NO RELATED".

6.3 Fault reset mechanism

The manual defines three types of power on/off responses: immediate shutdown, quick stop, and emergency stop. After confirming the fault, it can be reset through the following methods:

Cut off the power and wait for at least 10 seconds before powering it back on.

Use the DBG11A button (P840 manual reset).

Configure automatic reset function (P841="ON"). Attention: In dangerous applications such as lifting, it is strictly prohibited to enable automatic reset to prevent accidental restarts.