IAI America PCON-SE - Manual (Page 68)

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4. Description of Operating Functions
Warning: Since a pulse motor is adopted as the driving motor, excited phase detection operation is
performed when the servo is turned ON for the first time after the power has been input.
What this means is that the actuator must be able to move when the servo is turned ON.
If the slider or rod is at the mechanical end or the transferring load is contacting any
surrounding device, excited phase detection cannot be completed successfully and the
actuator may operate erroneously or an excitation detection error may generate.
In this case, manually move the actuator to a position where it can move, before turning ON the
servo.
If the actuator has a brake, you must set the brake release switch to the ON side to forcibly
release the brake. However, exercise caution not to let you hand pinched or robot hand or work
damaged by the actuator dropping suddenly due to its dead weight. If the actuator cannot be
moved by hand, changing the setting of parameter No. 28 (direction of excited phase signal
detection) is an alternative solution. If you wish to change this parameter, consult IAI
beforehand.
Ŷ Controller ready (PWR)
This signal indicates whether the controller is controllable from the outside.
0: Controller BUSY, 1: Controller READY
The controller is not generally put into a BUSY status.
Ŷ Servo ON command (SON)
When this signal becomes “1,” the servo ON status is made.
Use this signal when the servo ON/OFF is required in constructing the safety circuit of the entire equipment.
Ŷ Operation ready (SV)
This signal is a monitor signal indicating that the servo is ON and the motor is ready after the servo ON
command (SON) is input. The 1/0 status of this signal is synchronized with the lit/unlit status in green of the
SV lamp on the front panel.