EM500 Open-Loop Vector Control Inverter User Manual 1.2.2Control Modes of Inverter Control modes of inverter refer to what kind of method is adopted to drive motor at desired speed or torque. These modes include: VVF (Vector decoupling based VF control): The steady performance is the same as that in SVC. Suitable for occasions of low speed change and low speed stability accuracy and meet the needs of most AC motor drives. SVC (Sensorless Vector Control): Advanced speed estimate algorithm, no need for 1.2.3Setting Modes of Inverter encoder, open loop vector control and high control accuracy.
Setting mode of inverter refers to what kind of physical quantity is taken as the control object when inverter drives motor. Speed setting mode: Motor speed is taken as the control object; input setting, communication setting, digital potentiometer setting, process PID, simple This mode can be realized by numeric setting, analog input setting, high-speed pulse PLC or preset speed, individually or jointly. In Figure 1-1 to Figure 1-4, various input modes under the speed setting mode of EM500 are described: Main frequency source 主频率源A给定 Auxiliary frequency A setting 0：主辅通道合成频率 0:
Synthetic frequency of main 0 1 辅助频率源B给定 主辅运算给定 Main and auxiliary arithmetic setting source B setting 0 1 1：AI1*主辅通道合成频率 1: AI1*Synthetic frequency of main and auxiliary channels and auxiliary channels Frequency source 频率源选择 options F00.06 Frequency source switching F00.06 3 频率源切换 2 N Y 主频率源A给定 Main frequency source A setting 主辅 通道 合成 频率 增益 F00.12 Synthetic frequency gain of main and auxiliary channels 模拟量调节选择 Analog quantity adjustment F00.130 2 3 4 5 2：AI2*主辅通道合成频率 2: AI2*Synthetic frequency of main and auxiliary channels Setting frequency limit:
F00.16; 给定频率 条件限制 大小： F00.16; 4 5 DI:26 DI:26 辅助频率源B给定 主频率源A给定 Auxiliary frequency Main frequency source A setting source B setting F00.12 F00.13 3：AI3*主辅通道合成频率 3: AI3*Synthetic frequency of main and auxiliary channels 方向： F00.21等 Direction: F00.21, etc. Frequency source 频率源切换 switching DI: 26 DI:26 N Y 辅助频率源B给定 主辅运算给定 Main and auxiliary arithmetic setting Auxiliary frequency 5：HDI*主辅通道合成频率 5: HDI*Synthetic frequency of main and 4：AI4*主辅通道合成频率 4: AI4*Synthetic frequency of main and auxiliary channels auxiliary channels Frequency source 频率源切换 switching DI:
26 DI:26 N Y 主辅运算给定 Main and auxiliary arithmetic setting source B setting Figure 1-1 Speed Input Mode respectively main frequency source A setting (referred to as “Main A” for short), As indicated in Figure 1-1, there are mainly three speed setting modes of EM500, auxiliary frequency source B setting (referred to as “Auxiliary B” for short) and main & auxiliary arithmetic setting. The speed setting mode is finalized by simple regulation and 17