5.6 H: Terminal Functions 100% Analog input value 0 10 V Analog input voltage -100% Negative input is limited to 0 Figure 5.26 Analog Input with Limit (Bias Setting -100%) Setting 1: 0 to 10 Vdc without Limit The input level is 0 to 10 Vdc. Negative input values will be accepted. Example: Terminal A1 is set to supply the frequency reference, and the bias (H3-04) is set to -100%. The frequency reference can be set from 0 to 100% with an analog input of 5 to 10 V. With an input of 0 to 5 V, the frequency reference can be set from -100% to 0%. The drive reverses the motor rotation with negative input.
100% Analog input value 0V 10 V Analog input voltage -100% Figure 5.27 Analog Input without Limit (Bias Setting -100%) Setting 2: 4 to 20 mA Current Input The input level is 4 to 20 mA. Negative input values by negative bias or gain settings will be limited to 0 (like setting 0). Parameter Details Setting 3: 0 to 20 mA Current Input The input level is 0 to 20 mA. Negative input values by negative bias or gain settings will be limited to 0 (like setting 0). n H3-03/H3-04: Terminal A1 Gain/Bias Setting Parameter H3-03 sets the level of the selected input value that is equal to 10 Vdc input at terminal A1 (Gain).
Parameter H3-04 sets the level of the selected input value that is equal to 0 V input at terminal A1. Both can be used to adjust the analog input A1 characteristics. 5 Default Settings Using the factory default settings for the analog input’s function, gain, and bias, the 0 to 10 Vdc signal at the analog input will yield a 0 to 100% frequency reference span. SIEP C710606 33A OYMC AC Drive – J1000 User Manual 99 No. Name Setting Range Default H3-03 Terminal A1 Gain Setting -999.9 to 999.9% 100.0% H3-04 Terminal A1 Bias Setting -999.9 to 999.9% 0.0%