TECO-Westinghouse PA7300 Series, Installation And Operation Manual

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1 FWD/REV run select (set value = 00)
• When 0 is set in Sn-15, the mode becomes 3-wire sequence mode.
Fig. 12 3-wire sequence
2 Operation signal select (set value = 01)
• Selection of operation signals is enabled only when the drive is stopped.
Open: The AC drive operates according to the setting of Sn-04 1st, 2nd digits
and Sn-08 1st, 2nd digits.
Closed: The AC drive operates by frequency reference and run command from the
digital operator.
<Example 1>
For local/remote mode select, set Sn-04 = × × 00 and Sn-08=× × 11.
Open: Frequency reference and run command from control circuit terminals are
accepted (Remote mode).
Closed: Frequency reference and run commands from the digital operator are
accepted (Local mode).
<Example 2>
For local/remote mode select, set Sn-04 = × × 00 and Sn-08=× × 00.
Open: Frequency reference and run command are input by RS-485 communication
option card (Remote mode). Please refer to Appendix C for a detailed disscussion
of RS485 communications.
Closed: Frequency reference and run/stop command are input by digital operator
(Local mode)
3 Option card/AC drive reference select (set value = 02)
• Specify which of the option or AC drive references is used for operation. The option/AC drive
selection is effective only when the drive is stopped.
Open: Option card frequency reference and operation signals are accepted.
Closed: Frequency reference and operation signals from the AC drive control circuit
terminals or the digital operator are accepted.
4 Selection of multi-step speed references 1 to 3 and jog frequency select (set values = 3 to 6)
• Up to nine step speeds can be selected by combinations of multi-step speed references and
jog frequencies.
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PA 7300 PART II: OPERATION MANUAL
Fig. 12 3-wire sequence
RUN COMMAND (RUNS WHEN "CLOSED")
PA7300
STOP COMMAND (STOPS WHEN "OPEN")
RUN
STOP
24VG
1
2
5
FWD/REV RUN SELECT
"OPEN": FWD RUN
"CLOSED": REV RUN