Omron EJ1G, Руководство пользователя

Страница: 83 / 237

62
Setting Input Specifications
Section 5-1
5-1 Setting Input Specifications
5-1-1 Input Type, Temperature Inputs, Analog Inputs, and Input Filter
The input type, temperature inputs, analog inputs, and input filter are set in the
TC4 and TC2 Units. Refer to 4-2 Setting Output Specifications for details.
5-1-2 Decimal Point Position B
The Decimal Point Position B parameter is used to set the decimal point posi-
tion for the PV. Always set the same decimal point position as the input type
set for the TC4 and TC2 Units.
Note The Decimal Point Position B parameter can be set only when op-
eration is stopped.
Example 1: When the TC4 or TC2 Unit input type is set to 10 (T type thermo-
couple input,
−
199.9 to 400.0
°
C):
Set the Decimal Point Position B parameter to 1 (***.*).
Example 2: When the TC4 or TC2 Unit Input Type parameter is set to 25 (4 to
20 mA current input) and the TC4 or TC2 Unit Decimal Point Posi-
tion B parameter is set to 2 (**.**):
Set the Decimal Point Position B parameter to 2 (**.**).
5-1-3 Input Shift (Correction)
If there is a significant difference between the temperature at the measure-
ment point and the location where the temperature display is needed so that
the display/control performance is unsatisfactory at the present sensor posi-
tion (measurement point), the temperature difference can be set as an input
shift (correction) value.
Note (1) The decimal point position will be the value set for the Decimal Point Po-
sition B parameter.
(2) The decimal point position is determined by the sensor selection. With
analog inputs, the decimal point position is determined by the Decimal
Point Position parameter setting. In this case, however, the 0 (****) deci-
mal point position setting will be treated as setting 1 (***.*).
Variable type Parameter name Setting range Default
E0/A0 Decimal Point Position B
(Common)
0: ****
1: ***.*
2: **.**
3: *.***
0
Conditions for use No special conditions.
Variable type Parameter name Setting range Default
D5/95 Input Value 1 for Input Correction
(Channel)
−
1999 to 9999 EU
(See note 1.)
0
Input Shift 1 (Channel)
−
199.9 to 999.9 EU
(See note 2.)
0.0
Input Value 2 for Input Correction
(Channel)
−
1999 to 9999 EU
(See note 1.)
1000
Input Shift 2 (Channel)
−
199.9 to 999.9 EU
(See note 2.)
0.0
Conditions for use No special conditions.