IAI America SCON-CA - Manual (Page 19)

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6. Attempt not to exceed the actuator specifications in the pulse train control
mode.
In the pulse train control, the acceleration/deceleration speed is also controlled by the change
of the command pulse frequency from the host controller. The use of the actuator with
exceeding acceleration/deceleration speed may cause a malfunction.
7. Actuator would not operate without servo-on and pause signals.
(1) Servo ON Signal (SON)
Servo ON signal (SON) is selectable from “Enable” or “Disable” by using a parameter.
It is settable by parameter No.21 “selection of servo-on signal disable”.
[Refer to Chapter 8 I/O Parameter.]
If it is set to “Enable”, the actuator would not operate unless turning this signal on.
If parameter No.21 is set to “1”, SON is made disable.
If it is set to “Disable”, the servo becomes on and the actuator operation becomes enabled
as soon as the power supply to the controller is turned on and the emergency stop signal is
cancelled.
[Refer to 3.2.3 [3] or 3.3.2 [5] Emergency Stop Circuit.]
This parameter is set to “0” (Enable) at delivery. Have the setting that suits to the desirable
control logic.
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(2) Pause Signal (*STP)
The input signal of the pause signal (*STP) is always on considering the safety. Therefore,
in general, the actuator would not operate if this signal is not on.
It is available to make this signal to “Disable”, if this signal is undesirable.
It is settable by parameter No.15 “Pause input disable”.
[Refer to Chapter 8 I/O Parameter.]
If parameter No.15 is set to “1” (Disable), the actuator can operate even if this signal is not
on.
This parameter is set to “0” (Enable) at delivery.
8. Note that there are some frictions and/or torsions in through-hole of rotary
actuator when it is used.
When using rotary actuator with a through hole in the center of the revolution and using the hole
to put cables through, have a treatment to prevent wear from rubbing or wire break due to the
cables getting twisted.
9. For rotary actuator, note cable disconnections due to distortions.
Take particular note on actuators of 360-degree specification because they can be rotated
infinitely in a single direction.