External Contact Input Functions - Omron G3PW - MANUAL 2 User Manual

External Contact Input Functions

5-1

External Contact Input Functions

Event Inputs
When Not Using the Event
Input
Note
Selecting the Control
Method with the Event
Input
Note
48
There are two external contact inputs: the event input (terminals 11 and 12)
and reset input (terminals 13 and 14).
The event input (terminals 11 and 12) is an external contact input that can be
used for one of the following functions:
• Switching the control method between phase control and optimum cycle
control
• Switching between automatic and manual operation selection
In the initial setting level, set the Event Input Assignment parameter [P11] as
follows to assign one of the above functions to the event input.
P11 setting
0 No assignment
1 Control method selection
2 Automatic/manual selection
Set the parameter to 0 (No assignment). The event input will not function
regardless of its open/closed status.
If a setting other than 0 (No assignment) is selected, the control method and
automatic/manual operation will be switched according to the status of the
event input. If you are not using the event input, always set the parameter to 0:
No assignment.
Set the parameter to 1 (control method selection). The event input can be
used to switch between the following control methods.
• Phase control
• Optimum cycle control
1. RS-485 (+)
2. RS-485 (−)
3. Main setting
4. Main setting COM
5. Duty setting
6. Duty setting COM
7. Alarm output 1 (+)
8. Alarm output 1 (−)
Phase control
9. Alarm output 2 (+)
10. Alarm output 2 (−)
11. Event input (+)
12. Event input (−)
Optimum
13. Reset input (+)
cycle control
14. Reset input (−)
For standard models, 1 and 2 are not used.
(1) When constant-current control is set as the output mode for phase con-
trol, constant-current control is always used and the control method can-
not be switched by using the event input.
(2) When 1 (control method selection) is set for the Event Input Assignment
parameter [P11], the Control Method Selection (TYP) will not be dis-
played. In addition, if the Control Method Selection parameter is changed
by using communications, an operation error response will be returned.
Meaning Function of event input
Does not function as event input.
Switches between phase control
and optimum cycle control.
Switches between automatic and
manual operation.
Event input status
Open
Closed
Section 5-1
Meaning
Phase control
Optimum cycle control