12.7 H: TERMINALS
574 SIEPCYEUOQ2V01A Q2V Technical Manual
■ 12: AI Input Sel
Setting Value Function Description
12 AI Input Sel
Sets the command that enables or disables the terminals selected in H3-14 [An.In Term.Enable Sel].
ON : Terminal selected with H3-14 is enabled
OFF : Terminal selected with H3-14 is disabled
■ 15: FWD/REV Det
Setting Value Function Description
15 FWD/REV Det
Set the motor rotation direction when you use Simple Closed Loop V/f Control method.
ON : Reverse run
The drive knows that the motor is rotating in the reverse direction.
OFF : Forward run
The drive knows that the motor is rotating in the forward direction.
■ 16: Ref Sample
Setting Value Function Description
16 Ref Sample
Sets the command to sample the frequency reference at terminal AI1 or AI2, and hold the frequency reference at that frequency.
When the terminal is active for 100 ms, this function reads a sample of the analog frequency reference and holds
that sample. When you input the sample/hold command again, the function again reads a sample of the analog
frequency reference and holds that sample. When you turn off the power, the drive erases the saved analog
frequency and resets the frequency reference to 0.
Figure 12.68 shows an example of how the function operates.
Figure 12.68 Reference Sample Hold
You cannot set the Reference Sample Hold function at the same time as these functions:
• H1-xx = 17 [Ac/Dec Hold]
• H1-xx = 62, 63 [Up Command, Down Command]
• H1-xx = E to 10 [Offset Frq 1 to Offset Frq 3]
• H1-xx = 65, 66 [Up2 Command, Dw2 Command]
If you set them at the same time, the drive will detect oPE03 [Multi-Function Input Setting Err].
■ 17: Ac/Dec Hold
Setting Value Function Description
17 Ac/Dec Hold
Momentarily pauses motor acceleration and deceleration when the terminal is turned ON, retains the output frequency that was
stored in the drive at the time of the pause, and restarts motor operation.
If the terminal is deactivated, the drive restarts acceleration and deceleration.
When the acceleration/deceleration ramp hold terminal is activated and d4-01 = 1 [FRef Hold Selection =
Enabled], the drive will store the output frequency in memory. While the acceleration/deceleration ramp hold
command is activated, the drive will always restart the motor at this output frequency.
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