IMPULSE
®
•G+ & VG+ Series 4 Technical Manual
November 2020
Page 74
5.1.8 Motor Rotation Change
This parameter allows you to change the motor direction without changing the motor leads.
Table 5-6: Motor Rotation Parameter Settings
NOTE: To reverse the direction of rotation, program B03-04 = 1 (exchange phases), or interchange any two motor
leads (changing R/L1, S/L2, or T/L3 will not affect the shaft rotation direction) as well as encoder phasing
(F01-02 = 0/1 or swapping A+ and A- wires).
5.1.9 Zero-Speed Operation
This parameter sets the VFD behavior when the frequency reference is below the Zero Speed level (VG+ only).
Table 5-7: Zero-Speed Operation Parameter Settings
5.1.10 Input Scan Time
B03-06 selects the microprocessor scan time for reading the status of the input control terminals. Set B03-06 to “0”
when a quicker response is needed from the control circuit terminal.
Table 5-8: Input Scan Time Parameter Settings
Parameter Display Function Range Default
B03-04 Change Rotation Reverse motor direction 0.1 0
0 Standard
1 SwitchPhaseOrder Switch phase order (reverses the direction
of the motor
Parameter Display Function Range Default
B03-05 Zero-Speed Oper Operation Selection at Zero Speed 0–3 0
0 RUN at Freq Ref Operate according to the Frequency
Reference
1 STOP Coast when the Frequency Reference is
below E01-09
2 RUN at Min Freq Output the Frequency set in E01-09
3 RUN at Zero RPM Operate at zero speed
Parameter Display Function Range Default
B03-06 Cntl Input Scans Selects the terminal scan time 0, 1 1
0 1 Scan 1 ms
1 2 Scans 2 ms
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