Complete Guide to Lenze ECS Servo System

8.4 Cam Designer and Cam Loader

Cam Designer: Graphically create cam curves, supporting VDI 2143 motion patterns (polynomial, modified sine, trapezoidal acceleration, etc.), with a maximum of 4096 points per curve.

Cam Loader: Download cam data to multiple target systems, support scripting batch download, suitable for end-user recipe management.

Common troubleshooting (engineering experience)

Possible causes of malfunction and troubleshooting steps

The driver has no response when powered on, and the 24V control power supply is missing; The DC bus has not been established to check the auxiliary power supply wiring; Measure the input voltage of L1/L2/L3; Confirm that the power module enable terminal is closed

The motor does not rotate and no alarm enable signal is given; The limit switch has not been reset; Check the status of the digital input "Controller Enable" when the brake is not opened; Use GDC to monitor status words; Manual release brake test

During operation, if the DC bus voltage exceeds the upper limit (about 820V) and reports "overvoltage", check if the braking resistor is disconnected; Measure whether the chopper is triggered; Reduce deceleration; Add capacitor modules to absorb energy

Motor shaking or abnormal noise, encoder interference; Excessive gain; Mechanical resonance inspection encoder cable shielding layer grounding (single end); Install EZZ0014 filter; Reduce the gain of the speed loop P; Use notch filter

The gradual accumulation of multi axis synchronization errors results in insufficient accuracy of the electronic gear ratio; CAN communication packet loss using floating gear ratio; Check the CAN terminal resistance (120 Ω); Shorten the communication cycle to below 2ms

The braking resistor is overheating and smoking, and the braking is too frequent; Insufficient resistance power; Calculate the average braking power if the bus voltage does not reach the chopping threshold, and use a larger continuous power resistor instead; Check the chopping threshold parameter (default normal)

Driver reports "DC bus undervoltage" and the power grid drops instantly; Insufficient capacity of power module to use external DC support capacitor; Increase the incoming reactor; Check if the three-phase power supply is missing phase