IAI America ERC2 - Manual (Page 88)

5. Explanation of Operating Functions
69
Zone signal
Actuator operation
Home
Zone setting- Zone setting+
+ direction
5.3.9 Zone Signal
This signal is output (the bit turns “1”) when the current actuator position is inside the specified zone. The zone
signal can be used for the following purposes:
[1] As an interlock signal to prevent contact with peripheral equipment
[2] As a trigger signal for peripheral equipment to shorten the tact time
[3] For determining if the actuator has missed the work part during push & hold operation
[4] To determine if the actuator has reached the final point of constant pitch feed over aligned work parts
(Note) In constant pitch feed, the “Position” field of the position table indicates an incremental travel.
However, the zone must be set using absolute coordinates with respect to the home.
Setting Zone signal
Position number
specification mode
Numerical
specification mode
Individual zone boundaries in the
position table
Position zone output
PZONE
{ x
Zone boundary 1 user parameters
(Parameter Nos. 1 and 2)
Zone output 1
ZONE1
{ {
Zone boundary 2 user parameters
(Parameter Nos. 23 and 24)
Zone output 2
ZONE2
{ {
* The zone signal is output to the zone status register (address 9013H).
When the actuator enters the zone, the bit will turn “1.” The bit remains “0” when the actuator is outside the
zone.
This signal becomes effective after completion of home return. It will remain effective even when the servo is
off, as long as home return has been completed.