IAI America REXT - Manual (Page 232)

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Part 1 Specification
Chapter 4 Controller Unit
208
Part 1 Specification
z Home Check Sensor Input Polarity (No. 43, HMC)
Although not equipped on the standard specification, the home check sensor can be added as an option.
This parameter need not be changed in normal conditions of use. If the customer wishes to change the mode after shipment,
change the value in parameter No. 43.
Definition of settings: 0 (Standard specification/No sensor)
1 (The home check sensor is used based on the sensor polarity conforming to the contact-a logic)
2 (The home check sensor is used based on the sensor polarity conforming to the contact-b logic)
[Explanation of Operation]
[1] When a home return command is issued, the actuator contacts a mechanical end, upon which the home check sensor
outputs a detection signal.
[2] Next, the actuator reverses its direction, moves to the home position, and stops.
[3] If the home check sensor signal has been detected, the controller determines that the home return has completed
successfully.
If the signal has not been detected, the controller recognizes a “position deviation.” Accordingly, it generates a “home sensor
not detected” error and outputs an alarm signal.
z Home Sensor Input Polarity (No. 18, LS)
The input polarity of the home sensor is defined by parameter No. 18.
Since the current RCA actuators do not adopt the home sensor method, the factory setting of this parameter is “0 [No sensor]”
when these actuators are used.
On the RCP2-RTB/RTC of home sensor specification, this parameter is set before shipment.
This parameter is reserved for future actuator development, so the customer is advised not to change the setting.
Definition of settings: 0 (No sensor)
1 (The home sensor is used based on the sensor polarity conforming to the contact-a logic)
2 (The home sensor is used based on the sensor polarity conforming to the contact-b logic)
z PIO Jogging Speed (No. 26, JOGV)
PIO JOG Speed 2 (No. 47, IOV2)
These parameters set the speeds of jogging operation or inching operation.
The jogging speed parameter is switched according to the jogging speed/inching distance switching signal (JVEL), as follows:
JVEL = “0” Æ Parameter No. 26 (PIO jogging speed)
JVEL = “1” Æ Parameter No. 47 (PIO jogging s peed 2)
Set an optional value according to the specific purpose. The maximum limit is “250” [mm/sec].
Mechanical end
Home return offset
(parameter No. 22)
Home check sensor
Home position
Power is turned on.
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