YASKAWA Varispeed-606PC3 Instruction Manual

2 . DIGITAL. OPERATOR (JVOP-114) (Cont'd)2.11 PROTECTIVE FUNCTIONS (WARNINGS)Protective Explanation Monitor FaultFunction Display Contact OutputMonitor display appears when the mainLow-voltage circuit DC voltage drops under the detec-Protection ton level while the inverter output is off. (UV) Non(Main Circuit Detection level : OperationVoltage Approx. 210 V or less (230 V 3-phase) ; ; (Blink),~,Insufficient) Approx. 170 V or less (240 V single-phase)Approx. 420 V or less (460 V 3-phase)Monitor display appears when the maincircuit DC voltage rises above the detection (OV)Overvoltage level while the inverter output is off. NonProtection Detection level : OperationApprox. 410 V or more (230 V class tot u (Blink)3-phase, 240 V class single-phase)Approx. 820 V or more (460 V class)Cooling FinOverheat(Only for Monitor display appears when the cooling (OH)NonTypes of fin overheats : due to intake air ~ , OperationForced temperature rise . N (Blink)Cooling)This function is used to protect the machineand to monitor the inverter output torque . (OL3) NonOvertorque The motor operates according to selection OperationDetection of constant (No. 40) when the inverter 3L 3(Blink)output current exceeds the overtorquedetection level. The monitor blinks when"operation continues" is preset .Simultaneous When forward and reverse run commands (EF)Forward and are simultaneously closed for a period of NonReverse Run time exceeding 500 ms, the inverter is ~_ OperationCommands stopped according to the preset stop L F (Blink)method [constant (No. 01)]