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CHAPTER 2 WIRING
Forward command [FWD]: Sequence input signal (Reference value 2)
Reverse command [REV]: Sequence input signal (Reference value 3)
The signal makes the servomotor keep running while it remains turned on.
(1) Speed control
2
VS type: The motor rotates at the speed specified in IQ area (word +12).
(2) Position control
VS type: When the position control (%QX*.14.9) is turned on, the position control mode is
LS type: The servomotor keeps rotating in the positive (negative-) direction while the forward
LS Type
X3
OFF
OFF
OFF
OFF
ON
ON
ON
ON
2-40
Description of I/O Signals
When both the forward rotation command [FWD] and reverse rotation command [REV]
are turned on, the motor is controlled to stop.
activated while the signal is turned on.
While [FWD] (%QX*.14.14) or [REV] (%QX*.14.13) is turned on, the motor rotates at
the speed command set value (%QW*.12). The motor rotation speed 4000H is
equivalent to 3000 [r/min].
The motor rotation speed can be set at 6000 [r/min] by setting a value for the parameter
PA2_92 (SX extension function) (for VS) of 6000H.
command [FWD] (reverse command [REV]) signal remains turned on. Acceleration
begins at the rising edge, while the trailing edge triggers deceleration.
The motor rotates at a speed selected through combination of multi-step speed settings
[X1] (= No. 51), [X2] (= No. 52) and [X3] (= No. 53) (See the table below).
The motor does not stop if both the forward rotation command [FWD] and reverse
rotation command [REV] are turned on.
If turning the reverse rotation command [REV] on after the forward rotation command
[FWD] is turned off, turn the reverse rotation command [REV] on after the motor has
been controlled to stop.
X2
X1
OFF
OFF
OFF
ON
ON
OFF
ON
ON
OFF
OFF
OFF
ON
ON
OFF
ON
ON
Rotation speed
LS type: Reference value in IQ area (words +10, +11)
PA1_41: Manual feed speed 1
PA1_42: Manual feed speed 2
PA1_43: Manual feed speed 3
PA1_44: Manual feed speed 4
PA1_45: Manual feed speed 5
PA1_46: Manual feed speed 6
PA1_47: Manual feed speed 7
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