MHT258a (Engl.)5-10
5.3 Speed control
This section explains the signals to run or control the motor speed.
Control input signal : Forward command [FWD] (2)
Reverse command [REV] (3)
ACC0 [ACC0] (14)
Multistep speed 1 [X1] (51)
Multistep speed 2 [X2] (52)
Multistep speed 3 [X3] (53)
Speed command [NREF] (fixed)
Torque command [TREF] (fixed)
Control output signal : Speed zero [NZERO] (24)
Speed arrive [NARV] (25)
5.3.1 Forward command [FWD], Reverse command [REV]
These signals rotate the motor.
While the forward command [FWD] (reverse command [REV]) signal is on, the motor rotates forward (in reverse). Acceleration starts at the
ON edge, deceleration starts at the OFF edge.
When the forward command and reverse command are turned on simultaneously, the motor decelerates to stop.
Operation depends, in speed control, position control, or torque control.
(1) Speed control
Motor rotates at the speed selected by [X1], [X2] and [X3].
[X3] [X2] [X1] Speed
OFF OFF OFF
OFF OFF ON
OFF ON OFF
OFF ON ON
ON OFF OFF
ON OFF ON
ON ON OFF
ON ON ON
Speed set by speed command [NREF] terminal
Speed set by basic parameter 1
Speed set by basic parameter 2
Speed set by basic parameter 3
Speed set by basic parameter 4
Speed set by basic parameter 5
Speed set by basic parameter 6
Speed set by basic parameter 7
(2) Position control
Operation is same as the one by voltage of voltage of speed control. The motor starts rotation at the ON edge of forward command [FWD]
(reverse command [REV]). Even when the both command signals are turned on simultaneously, the motor does not stop.
For the interrupt positioning, see 5.7.
(3) Torque control
Motor outputs its torque according to the voltage of speed command [NREF] terminal. See 5.6 for the torque control.
■ Interface
Forward command [FWD] (2)
Reverse command [REV] (3)
ON : Starts acceleration
OFF : Starts deceleration.
M5
22k
220k
Speed command [NREF]
Torque command [TREF]
±10V/max. speed (±9V/max. torque)
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