How to Troubleshoot NICE900 Door Inverter Fault E27?
E27 indicates a door frame self-learning failure. Ⅰ. The commonly used NICE900 door machine inverters mainly include the following three types, with different output power: NICE-D-A-SOP2 (200W) NICE-D-A-SOP4 (400W) NICE-D-A-SOP7 (750W) Ⅱ. Fault Causes: 1.The learned door width data from self-learning is less than 20. 2. Distance control operation is performed before door width self-learning. […]
