n Using External Power Supply (Sink Mode)The high voltage level of the pulse output signal depends on the external voltage applied. The voltage must be between 12and 15 Vdc. The load resistance must be adjusted so that the current is lower than 16 mA.External Power Supply (V) Load Impedance (kΩ)12 to 15 Vdc ±10% 1.0 kΩ or higherMPACLoad ImpedanceSink CurrentExternal Power SupplyFigure 3.32 Pulse Output Connection Using External Voltage Supplyu Terminal A2 Input Signal SelectionTerminal A2 can be used to input either a voltage or a current signal. Select the signal type using switch S1 as explained inTable 3.13. Set parameter H3-09 accordingly as shown in Table 3.14.Note: If terminals A1 and A2 are both set for frequency bias (H3-02 = 0 and H3-10 = 0), both input values will be combined to create the frequencyreference.Table 3.13 DIP Switch S1 SettingsSetting DescriptionV (left position) Voltage input (-10 to +10 V)I (right position) Current input (4 to 20 mA or 0 to 20 mA): default settingTable 3.14 Parameter H3-09 DetailsNo. Parameter Name Description SettingRange DefaultSettingH3-09 Terminal A2 signal level selectionSelects the signal level for terminal A2.0: 0 to 10 Vdc1: -10 to 10 Vdc2: 4 to 20 mA3: 0 to 20 mA0 to 3 2u Terminal A3 Analog/PTC Input SelectionTerminal A3 can be configured either as multi-function analog input or as PTC input for motor thermal overload protection.Use switch S4 to select the input function as described in Table 3.15.Table 3.15 DIP Switch S4 SettingsSetting DescriptionAI (lower position) (default) Analog input for the function selected in parameter H3-06PTC (upper position) PTC input. Parameter H3-06 must be set to E (PTC input)3.8 Control I/O Connections68 YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
