module is not switched on . switched on Utility normal but The input breakers of the Utility LED does not Switch on the input breaker; Modules are not switched on; 4 light on, and the UPS Make sure the input cable is well input cable is not well operates at battery connected. connected mode The UPS does not indicate any failure, Output cable does not well Make sure the output cable is well 5 but output do not connected connected. have voltage Module does not well inserted; Pull out the module and insert again; The UPS module can The left coronal screw is not 6 not transfer to bypass tight. Tighten the screw; or inverter Output breaker do not switch Switch on the output breaker. on Take out this module, replace with a The UPS module fault The module is already 7 LED remains ON damaged new module. If the UPS operates at battery mode, Utility LED is Utility voltage exceeds UPS 8 please pay attention to the remaining flashing input range. backup time needed for your system. Switch on the battery breaker. If batteries are damaged, need to Battery breaker does not switch Battery LED is replace whole group batteries, on, or batteries are damaged, or flashing but battery is reversely connected. 9 Connect the battery cables correctly; no charge voltage and battery number and capacity Go to LCD setting of the battery current are not set correctly. number and capacity, set the correct data. Buzzer beeps every 0.5 seconds and LCD 10 Overload remove some load display “output overload” Buzzer long beeps, The UPS output is in short Make sure the load is not in short 11 LCD display “output circuit circuit, then restart the UPS. short circuit” The LED of the The module is not inserted Pull out the module and insert 12 Module with RED properly. properly. light Set the UPS working mode to Single The UPS is set to ECO mode, The UPS only works Module type(non-parallel) or to reset 13 or the transfer times to on bypass mode the times of transferring to bypass or bypass mode are limited. re-start the UPS
module is not switched on . switched on 4 Utility normal but Utility LED does not light on, and the UPS operates at battery mode The input breakers of the Modules are not switched on; input cable is not well connected Switch on the input breaker; Make sure the input cable is well connected. 5 The UPS does not indicate any failure, but output do not have voltage Output cable does not well connected Make sure the output cable is well connected. 6 The UPS module can not transfer to bypass or inverter Module does not well inserted; The left coronal screw is not tight. Output breaker do not switch on Pull out the module and insert again; Tighten the screw; Switch on the output breaker. 7 The UPS module fault LED remains ON The module is already damaged Take out this module, replace with a new module. 8 Utility LED is flashing Utility voltage exceeds UPS input range. If the UPS operates at battery mode, please pay attention to the remaining backup time needed for your system. 9 Battery LED is flashing but no charge voltage and current Battery breaker does not switch on, or batteries are damaged, or battery is reversely connected. battery number and capacity are not set correctly. Switch on the battery breaker. If batteries are damaged, need to replace whole group batteries, Connect the battery cables correctly; Go to LCD setting of the battery number and capacity, set the correct data. 10 Buzzer beeps every 0.5 seconds and LCD display “output overload” Overload remove some load 11 Buzzer long beeps, LCD display “output short circuit” The UPS output is in short circuit Make sure the load is not in short circuit, then restart the UPS. 12 The LED of the Module with RED light The module is not inserted properly. Pull out the module and insert properly. 13 The UPS only works on bypass mode The UPS is set to ECO mode, or the transfer times to bypass mode are limited. Set the UPS working mode to Single Module type(non-parallel) or to reset the times of transferring to bypass or re-start the UPS