3.9 Main Frequency Referenceu DIP Switch S1 Analog Input Signal SelectionThe main frequency reference can either be a voltage or current signal input at terminal A1.When using input A1 as a voltage input, set DIP switch S1 to “V” (right position, default setting) and program parameterH3-01 to “0” (0 to +10 Vdc with lower limit) or “1” (0 to +10 Vdc without lower limit).To use current input at terminal A1, set the DIP switch S1 to "I" and set parameter H3-01 = “2” or “3” (4-20 mA or 0-20 mA).Table 3.11 Frequency Reference ConfigurationsVoltage Input Current Input+10.5 V20 mA currentMain speed frequencyreference (voltage input)Frequency referencecommonDrive+VA1AC0 to 10 V+10.5 V20 mA currentMain speedfrequency reference(current input)Frequencyreferencecommon+VA1ACDrive4 to 20 mA inputor0 to 20 mA inputI VDIP Switch S1Figure 3.19 DIP Switch S1Table 3.12 DIP Switch S1 SettingsSetting Value DescriptionV ( right position) Voltage input (0 to 10 V): default settingI ( left position) Current input (4 to 20 mA or 0 to 20 mA)Table 3.13 Parameter H3-01 DetailsNo. Parameter Name Description SettingRange DefaultSetting MEMOBUSRegisterH3-01Frequency ref. (voltage/current)terminal A1 signal levelselectionSelects the signal level for terminal A1.0: 0 to +10 V, unipolar input (negative frequencyreference values are zeroed)1: 0 to +10 V, bipolar input (negative frequency referencechanges the direction)2: 4 to 20 mA3: 0 to 20 mA0 to 3 0 4103.9 Main Frequency ReferenceYASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manual 493 Electrical Installationhttp://nicontrols.com
