sinee — 10.1Alarm diagnosis and handling measures

192 Technical Manual for EA190 Series Servo Driver V100 constantly increase The motor encoder is improperly wired Check U, V, W and encoder wiring Correct wiring The motor power cable is cut off or has poor contact 1: Check whether the motor power line and the driver are reliably connected 2: Check whether the motor connector are reliably connected; particularly check the specification of plastic connectors if used 1: Tighten screws and eliminate poor contact, poor cable connection and other problems. 2: Fix connectors to prevent them shaking or getting stressed under external load. 3: Check reeds in connectors against deformation and make corrections.

Improper setting of control parameters 1: Check whether the machine oscillates and whether the motor produces abnormal noise 2: Acceleration/deceleration is set too fast 1: Adjust the position/speed gain 2: Slow down acceleration and deceleration Driver or motor alarm Eliminate the above problems Send it to the distributor or manufacturer for repair RL010 :

The driver is overheated Reason for alarm Inspection Handling method Excess environment temperature Check whether the ambient temperature falls within the permitted range Improve the installation environment The driver cooling fan is damaged Check if the cooling fan runs during operation Replace the non-operating fan Heat dissipation of the servo driver is affected 1: Check whether the driver is installed in conformity to specified requirements 2: Check whether the radiator of the driver is blocked 1: Install the driver properly according to requirements provided in Chapter II 2: Clear blockage RL011 :

The auxiliary supply voltage is too low Reason for alarm Inspection Handling method The auxiliary power supply has continuous voltage drop over above 40ms and the drop reaches above 50% 1: Check whether the auxiliary power supply is properly wired Improve the power quality. 2: Check if there is sound power supply Eliminate poor contact or other wiring abnormalities RL012 :

Overspeed Reason for alarm Inspection Handling method UVW phase sequence error Check if the UVW phase sequence is correct Wire the terminals according to the correct phase sequence Improper setting of overspeed judgment parameter Check whether the overspeed parameter is set too small Set a proper overspeed reference value The speed input command changes too sharp Check whether the analog voltage signal is abnormal Adjust the change rate of the input signal or adjust filtering The encoder is disturbed Check whether lines are properly laid and whether the system is grounded Adjust the line layout and ground the system reliably RL013 :

The position deviation is too high Reason for alarm Inspection Handling method The value of alarm for a position following error is too small Check whether parameter P1-20 is set properly Increase the set value of P1-20 The pulse command frequency is higher than the requirement of the specification Check the pulse command frequency Adjust the pulse frequency to make it no higher than the requirement of the specification