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Visit the Alpha website at www.alpha.ca for the latest manual and product downloads

6.6.1Calibrate Analog Inputs

This menu item provides a direct link to the Analog Inputs menu heading; which may also be accessed via the menu item Configure Signals, see 6.6.2.

6.6.1.1Analog Inputs

This menu item will display a list of all the existing analog input channels.

Definitions

The majority of the CXC’s analog input channels are each designed to accept a specific input signal, where:

= Installed

BiV

=

-60V to +60V

I

=

-50mV to +50mV

T

= -55°C to +100°C (powered)

V

=

0 to 60V

X

=

Not Installed

The following table summarizes the analog input channel assignments; which may vary depending on the hardware configuration (list options):

Channel Assignment

 

 

List Option

 

 

120

121

122

123

124

125

129

 

V1

 

 

 

 

 

 

 

 

V2

X

GP1

T1

T1

T1

T1

V3

T1

T1

GP2

T2

T2

T2

T2

V4

T2

T2

GP3

X

T3

X

T3

V5

BiV

T3

GP4

BiV

T4

BiV

T4

T1

BiV

T4

I1

 

 

 

 

 

 

 

 

I2

X

X

X

X

 

 

 

 

 

 

 

 

I3

X

X

X

X

X

 

 

 

 

 

 

 

 

I4

X

X

X

X

X

 

 

 

 

 

 

 

 

Table C–Analog input channel assignments

0350046-J0 Rev C

Page 61 of 127

Refer to the back of this manual for Factory Service and Technical Support contact information

Calibration

From this pop-up window, the Supervisor can calibrate the selected channel by setting the high point or low point or both as shown in the following example:

Figure 47–Analog Inputs calibration example

Tap to Cancel or proceed through the screens in the example above. Apply or Discard the calibration information as desired.

NOTE: a more detailed method of procedure can be found by visiting the Alpha website at www.alpha.ca. Look under the Support menu item!

0350046-J0 Rev C

Page 62 of 127

Visit the Alpha website at www.alpha.ca for the latest manual and product downloads

Static Calibration

Static calibration enables the Supervisor to calibrate controller analog inputs without the need for a live signal at the input. This is especially useful for calibrating current inputs for systems in the field. See Figures below:

Discard changes and return to previous screen

Sliders and scroll bars are used for navigation

Select menu item to configure

Tap Save or Restore

Default as required Accept changes and return to previous screen

Figure 48–Static calibration window

Figure 49–Static calibration (via web interface)

0350046-J0 Rev C

Page 63 of 127