IAI America SSEL - Manual (Page 345)

323
Part 3 Positioner Mode
The input mode can be changed to BCD by changing the setting of other parameter No. 71.
Assume the following settings:
Other parameter No. 71, “Position-number input method specification” = 1 (BCD)
Other parameter No. 72, “Number of position-number input bits” = 8
(In the BCD input mode, one digit consists of four bits. In other words, bits are input in units of four.)
Other parameter No. 73, “Number of positions per product” = 50
Each position number is assigned to eight bits of inputs 1 through 8 (007 through 014), as a two-digit BCD
code.
Each product number is assigned to eight bits of inputs 9 through 16 (015 through 022), as a two-digit
BCD code.
As for the position number, specify the one’ s placein inputs 1 through 4, and ten’ s place in inputs 5
through 8.
As for the product number, specify the one’ s placein inputs 9 through 12, and ten’ s place in inputs 13
through 16.
Pause (*STP)
If this signal turns OFF while the actuator is moving, the controller will cause the actuator to decelerate to
a stop.
The remaining travel distance will be held, which means that when the signal turns ON again, the actuator
will resume movement of the remaining travel distance.
To cancel the movement command altogether after turning OFF the pause signal, turn ON the
cancellation signal while this signal is OFF to cancel the remaining travel distance.
The pause signal can be used for the following purposes:
[1]
As a sensor to detect entry into a specified area around the system or for other lower-level safety
measures to stop the axis while the servo is on
[2] To prevent contact with other equipment
[3] For positioning based on sensor or LS signal detection
has not yet contacted the mechanical end. If the signal is input after the actuator has reversed
upon contacting the mechanical end, home return will be performed again.
Cancellation (CANC)
If this signal turns OFF while the actuator is moving, the controller will cause the actuator to decelerate to
a stop. The remaining travel distance will be cancelled and the movement will not resume even when the
signal turns ON thereafter.
Home return (HOME)
The actuator will start home-return operation upon detection of the OFF ON edge of this signal.
Once the home return is complete, the HEND signal will be output. This signal can be input as many
times as desired after completion of the initial home return.
(Note) An actuator of incremental specification must always perform home return after the power is
turned on.
Servo ON (SON)
The servo remains on while this signal is ON.
Use this signal if servo ON/OFF control is required as part of the safety circuit for the entire system to be
provided on the PLC side.
To operate the actuator using the start input/home return input, the servo ON input signal must be ON. If
the servo ON input signal is OFF, these operation commands will not be accepted. (Only the commands
will be ignored, and no error will generate.)
(Note) When this signal turns OFF while the actuator is moving, the actuator will not decelerate to a stop.
It will complete the movement to the target position, after which the servo will turn off.
(Note) To turn on the servo using the servo ON signal, input the *pause signal and *cancellation signal
and turn the signals ON.
(Note) For the controller not capable for the memory capacity increase, it is All Item No. 1 to 50.
(Note) When this signal is input during home return, the movement command will be held if the actuator