12.7 H: TERMINALS
674 SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
■ 12: AI Input Sel
Setting 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
■ 13: Spd/Trq Switch
Setting Function Description
13 Spd/Trq Switch
Sets the function to switch between torque control and speed control.
ON : Torque control
OFF : Speed control
Note:
When this function is enabled, set d5-01 = 0 [Torque Ctrl Selection = Speed Control].
Input the Speed/Torque Control Switchover Time
Use parameter d5-06 [Spd/Trq Chg Time] to set the length of time, in milliseconds, that the drive will wait to
switch between speed and torque control. When the speed/torque control switchover signal changes in the time set
in d5-06, the three analog inputs will keep their present value. Complete the signal switchover with an external
source in this time.
Note:
Refer to “Switch Speed Control and Torque Control” for more information.
■ 14: AI Trq Polarity
Setting Value Function Description
14 AI Trq Polarity
Sets the rotation direction of the external torque reference.
ON : External torque reference reverse direction
OFF : External torque reference forward direction
■ 15: FWD/REV Det
Setting Function Description
15 FWD/REV Det
Sets the rotation direction of the motor when in Simple Closed Loop V/f Control method and F1-21, F1-37 = 0 [Encoder
Option Function Selection = A Pulse Detection], or when in Closed Loop V/f Control method.
ON : Reverse
Detects if the motor is rotating in the reverse direction.
OFF : Forward
Detects if the motor is rotating in the forward direction.
■ 16: Ref Sample
Setting Function Description
16 Ref Sample
Sets the command to sample the frequency reference at terminals AI1, AI2, or AI3 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 12.76 shows an example of how the function operates.
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