3.9 Main Frequency Reference 3.9 Main Frequency Reference u DIP Switch S1 Analog Input Signal Selection The 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 parameter H3-01 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 Configurations DIP Switch S1 I V Figure 3.19 DIP Switch S1 Table 3.12 DIP Switch S1 Settings Table 3.13 Parameter H3-01 Details 46 SIEP C710606 33A OYMC AC Drive – J1000 User Manual Voltage Input Current Input Drive +V+10.5 V 20 mA current 0 to 10 V A1Main speed frequency reference (voltage input) ACFrequency reference common Drive +10.5 V 4 to 20 mA input +V20 mA current or 0 to 20 mA input Main speed A1frequency reference (current input) ACFrequency reference common Setting Value Description V ( right position) Voltage input (0 to 10 V): default setting I ( left position) Current input (4 to 20 mA or 0 to 20 mA) No.
Parameter Name Description Setting Range Default Setting MEMOBUS Register H3-01 Frequency ref. (voltage/ current) terminal A1 signal level selection Selects the signal level for terminal A1. 0: 0 to +10 V, unipolar input (negative frequency reference values are zeroed) 1: 0 to +10 V, bipolar input (negative frequency reference changes the direction) 2: 4 to 20 mA 3: 0 to 20 mA 0 to 3 0 0