8 Application Instructions API 100-149 too fast or with too many fluctuations, select “fast heating environment” to slow down the control speed. When bit2 ~ bit5 of S 3 +1 are all set as 1 or more than 1 environments are designated, FTC instruction will check from bit2 to bit 5 in order and enable the function that has been set as 1. The parameter can be modified during the control. 4. Example 1: control diagram FTC D22 MV Y0 GPWM Program D11 PV PT Module Temperature Sensor Output D22 (MV) of FTC instruction is the input D22 of GPWM instruction, as the duty cycle of ajustable pulses. D30 is the fixed cycle time of pulses. See below for the timing diagram of Y0 output.
D22 Y0 D30 Assume parameter settings: D10 = K1,500 (target temperature), D12 = K60 (sampling time: 6 secs.), D13 = K8 (bit3=1), D30 = K6,000 (=D12*100) The example control program is indicated as: M1002 M1 M1013 END DVP-PLC Application Manual 8-64 SV + e Fuzzy Controller MOV K1500 D10 TO K0 K2 K2 K1 FROM K0 K6 D11 K1 MOV K60 D12 MOV K8 D13 MOV K6000 D30 SET M1 FTC D10 D11 D12 D22 GPWM D22 D30 Y0 FROM K0 K6 D11 K1