You can input NTC input signal to MFAI terminals A1 to A3. Set H3-01 = 0 [Terminal A1 Signal Level Select = 0-10V (Lower Limit at 0)], H3-09 = 0 [Terminal A2 Signal Level Select = 0-10V (Lower Limit at 0)], or H3-05 = 0 [Terminal A3 Signal Level Select = 0-10V (Lower Limit at 0)] to set the input signal level for MFAI terminals. Set DIP switches S1-1 to S1-3 to the “V” side to terminals A1 to A3.
Figure 1 shows circuit example for NTC control. When you use terminal A2 to input the NTC thermistor input, set DIP switch S1-02 to “V” side and set H3-09 = 0 [Terminal A2 Signal Level Select = 0-10V (Lower Limit at 0)] and H3-10 = 17 [Terminal A2 Function Selection = Motor Temperature (NTC Input)].
Figure 1. Connect Motor NTC
The NTC thermistor must have the characteristics shown in Figure 2.
Figure 2. NTC Thermistor Temperature and Resistance
