Toshiba G 3 User's Manual
TOSHIBA G3 APPLICATION GUIDELINE 21.5
* For additional assistance, please contact Toshiba at (800) 231-1412 and ask for inverter marketing
Direction Change with RX Input (page 1 of 2)
Introduction
Like all speed references on the G3, the RX input has an adjustable bias and gain. The RX is unique, however, in that its inputs can be
positive or negative and the corresponding speeds can be positive or negative. The first example shown below will allow a motor
direction change based on a positive-only speed reference (a speed pot). The second example will illustrate how to program the drive
to accept an input that reverses polarity. If you do not have a motor connected, use monitor to verify direction change. Set SWITCH 1
(right of the phone jack on the control board under the keypad) to ‘5’ or ‘10’ as appropriate for the voltage you are applying to the RX
terminal. The I/V switch does not apply to the RX terminal.
Connections for positive-only reference
TERMINAL STRIP
ST CC F CC
PP RX CC
Example programming for positive-only reference
Group
Parameter
New Value
UTILITY PARAMETERS
Blind Function Selection
1
UTILITY PARAMETERS
Frequency Setting Parameters Blind
1
FREQUENCY SETTING PARAMETERS
Frequency Priority Selection #1
3
FREQUENCY SETTING PARAMETERS
RX Terminal Standard or Adjustable
1
FREQUENCY SETTING PARAMETERS
RX Reference Setting Point #1
0 (default)
FREQUENCY SETTING PARAMETERS
RX Point #1 Frequency
60
FREQUENCY SETTING PARAMETERS
RX Reference Setting Point #2
100 (default)
FREQUENCY SETTING PARAMETERS
RX Point #2 Frequency
-60
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