PA7300 Instruction Manual - TECO-Westinghouse Motor Company

(25) Pump Operation Mode Selection (Sn-30)The PA-PID option card application parameter. Set PA-PID card ineffective (Sn-30=0)when the PA-PID card is not installed. Please refer to “PA-PID instruction manual”.Sn-30=0PA-PID card ineffective.Sn-30=1Fixed inverter driving mode, stop all the pumps by first-run-last-stopsequence. i.e. Only one of the pumps is drived by inverter, the others aredrived by ac power source, and take the first run pump last stop sequenceto stop all the pumps. This operation mode is better for the different motorKW application.Sn-30=2Fixed inverter driving mode, stop the pump drived by the inverter only. i.e.When the inverter output the stop signal, only the pump drived by theinverter is stopped.Sn-30=3Fixed inverter driving mode, stop all the pumps by first-run-first-stopsequence. i.e. The first-run (the motor running for the longest time)-first-stop sequence is adopted to stop the motors and it keeps the pumpshave almost the same working duty. This operation mode is better for thesame motor KW application.Sn-30=4Cycled inverter driving mode, stop all the pumps by first-run-first-stopsequence. i.e. Except the auxiliary pumps, all the pumps are controlled byinverter, and take the first-run-first-stop sequence to stop all the pumps.Sn-30=5Cycled inverter driving mode, stop the pump drived by the inverter only.Fixed inverter driving mode and Cycled inverter driving mode connection examples:3powersourceINVMC0(RY1)MC1(RY2)MC2(RY3)MC3(RY4)MC4(RY5)M1M3M2M43powersourceINVMC0(RY1)MC1(RY2)MC2(RY3)MC3(RY4)MC4(RY5)M1M2MC5(RY6)MC6(RY7)M5M6MC5(RY6)MC6(RY7)M3MC7(RY8)M7MC7(RY8)M4(a) Fixed inverter driving mode(b) Cycled inverter driving modeFig. 13 Pump Operation mode(26) PA-PID Card Relay 2 Control (Sn-31)(27) PA-PID Card Relay 3 Control (Sn-32)(28) PA-PID Card Relay 4 Control (Sn-33)103