Omron G3PW, Руководство пользователя

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External Contact Input Functions Section 5-1
5-1 External Contact Input Functions
There are two external contact inputs: the event input (terminals 11 and 12)
and reset input (terminals 13 and 14).
Event Inputs
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.
When Not Using the Event
Input Set the parameter to 0 (No assignment). The event input will not function
regardless of its open/closed status.
Note 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.
Selecting the Control
Method with the Event
Input 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
Note (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.
P11 setting Meaning Function of event input
0 No assignment Does not function as event input.
1 Control method selection Switches between phase control
and optimum cycle control.
2 Automatic/manual selection Switches between automatic and
manual operation.
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 (
−
)
9. Alarm output 2 (+)
10. Alarm output 2 (
−
)
11. Event input (+)
12. Event input (
−
)
13. Reset input (+)
14. Reset input (
−
)
For standard models, 1 and 2 are not used.
Event input status Meaning
Open Phase control
Closed Optimum cycle control