User Manual of EM760 High-Performance Inverter These two function codes are subject to bit operation. You only need to set the corresponding bit to 0 or 1. As shown in the table below: Table 6-20 Detailed Definition of Protection Action Bits For example, to stop the inverter according to the stop mode (F04.19) after the Ea3 and E3 protection are enabled, you only need to set the 1 st bit corresponding to and the 3 rd bit corresponding to E3 to 1. That is, F07.19=xxx x1x1x.
When the off-load protection is valid (F07.21=1), the inverter will be in the running status without DC braking, and the output current is below the off-load detection level (F07.22) and maintained for the off-load detection time (F07.23), the inverter will be in the off-load status. Specific processing depends on F07.24. F07.27=0: invalid The automatic voltage regulation (AVR) function is invalid. F07.27=1: valid The AVR function is continuously valid.
Ifthe input voltage is lower than the rated input voltage, and the output frequency is greater than the corresponding frequency on the VF curve, the inverter will output the output the maximum voltage to maximize the power output of the motor. If the input voltage is higher than the rated input voltage, the output voltage ofthe inverter will decrease, and the VF ratio will remain unchanged. F07.27=2: automatic 198 F07.19 E21 E16 E15 E14 E13 E12 E08 E07 F07.20 * * * * E28 E27 * E23 Corresponding bit 7 6 5 4 3 2 1 0 Settings 0/1 0/1 0/1 0/1 0/1 0/1 0/1 0/1 Function code Function codename Parameter description Unit Default setting Attribute F07.21 Options ofload loss protection 0: Invalid 1:
valid 0 ● F07.22 Load loss detection level 0.0~100.0 % 20.0 ● F07.23 Load loss detection time 0.0~60.0 s 1.0 ● F07.24 Options ofload loss protection action 0: trip protection, free stop 1: trip protection, stop according to stop mode 2: Continue to run, with DO status output 1 O Function code Function codename Parameter description Unit Default setting Attribute F07.27 AVR function 0: Invalid 1: valid 2: automatic 1 O