Chapter 6 Control Terminals MS300 6-6 Terminals Terminal Function Description DFM Digital frequency signal output Figure 6-9 DFM uses pulse voltage as an output monitoring signal; Duty-cycle: 50 % Min. load impedance R : 1 kΩ / 100 pF L Max. current endurance: 30 mA Max. voltage: 30 V ± 1 % DC (when 30 V / 30 mA / RL=100 pF) DC Max. output frequency: 33 kHz Current-limiting resistor R: ≥ 1 KΩ Output load impedance R L Capacitive load ≤ 100 pF Resistive load ≥ 1 kΩ, resistance determines the output voltage value.
DFM-DCM voltage = external voltage * ( R / (R +R) ) L L DCM Digital control / Frequency signal common (Sink) MO1 Multi-function Output 1 (photo coupler) The AC motor drive outputs various monitoring signals, such as drive in operation, frequency reached, and overload indication through a transistor (open collector). Max.
48 V 50 mA Figure 6-10 DC MO2 Multi-function Output 2 (photo coupler) MCM Multi-function Output Common (photo coupler) RA Multi-function relay output 1 (N.O.) a Resistive Load 3 A (N.O.) / 3 A (N.C.) 250 V AC 5 A (N.O.) / 3 A (N.C.) 30 V DC Inductive Load (COS 0.4) 1.2 A (N.O.) / 1.2 A (N.C.) 250 V AC 2.0 A (N.O.) / 1.2 A (N.C.) 30 V DC To output different kinds of monitoring signals such as motor drive in operation, frequency reached, and overload indication. RB Multi-function relay output 1 (N.C.) b RC Multi-function relay common +10 V Potentiometer power supply Power supply for analog frequency setting:
+10.5 ± 0.5 V / DC 20 mA AVI Analog voltage frequency command +10V AVI (-10V~+10V) ACM 0V + - -10V Figure 6-11 +10V AVI (-10V~+10V) + - ACM 0V + - -10V Figure 6-12 Impedance: 20 kΩ Range: 0–10 V / -10–10 V = 0–Maximum Operation Frequency (Pr.01-00) Mode switching by setting Pr.03-00, Pr.03-28 AVI resolution=10 bits