4.2Modes
- 21
J
Initializing User Constants: A1-03
D
Use constant A1-03 to initialize the user constants.
D
When initialized, the user constants will return to their factory-preset values. You should normally re-
cord the setting of any constants that are changed from the factory presets.
User
Change
during
Setting
Factory
Valid Access Levels
User
Constant
Number
Name
during
Opera-
tion
Setting
Range
Unit
Factory
Setting
Open Loop
Vector
Flux Vector
A1-03
Initialize
0, 1110
,
2220
,
3330
--
0
Q
Q
Settings to Initialize User Constants
Setting
Function
0
Returns to the Initialize Display without initializing any user constants.
1110
Initializes the user constants to the user settings.
2220
2-wire sequential initialization (Initializes the user constants to the factory settings.)
3330
3-wire sequential initialization
Initializing to User Settings
This function initializes the user constants to values that have been recorded as user settings.
To record the user settings, change the user constants to the desired values and then set user constant o2-03
(User constant initial value) to 1. Once user settings are recorded, the o2-03 value will be automatically
reset to 0. (The 1110 function will be disabled when user constant o2-03 is set to 0.)
D
Example of Wiring for 2-wire Sequential Operation
1
2
11
Forward Run/Stop
Reverse Run/Stop
Sequential input common
Fig
4.8
Example of Wiring for 2-wire Sequential Operation
D
Example of Wiring for 3-wire Sequential Operation
The default settings of the multi-function inputs are different from the default settings of the 2-wire
sequence.
When setting a 3-wire sequence, the operation can be started and stopped with an automatically reset-
ting pushbutton switch.
1
2
11
Stop switch (NC)
Run switch (NO)
5
Run command
(Operates when the run switch is closed.)
Stop command
(Stops when the stop switch is open.)
Forward/Reverse run command
(Multi-function input 3)
Sequential input common
Fig
4.9
Example of Wiring for 3-wire Sequential Operation
4