Hi5 controllermaintenanceHi5 Controller Maintenance Manual6. Troubleshooting6.1. Troubleshooting Solution6.1.3. E0011 AMP overvoltage (P-N)On this page6.1.3. E0011 AMP overvoltage (P-N)6.1.3. E0011 AMP overvoltage (P-N) 6.1.3.1. Outline6.1.3.2. Causes and checking methods