Chapter
4
A complete listing of a sample ladder logic program is included at the back of this manual.
Examples shown here are for reference.
All values are 0 (default) on initial start-up. This means that all alarms are
disabled. You must make the following adjustments for proper operation:
•
•
•
•
•
•
set calibration numbers
set meter scale
set capacity (maximum load) alarms
set minimum load alarms
set sample count
set trend alarms
Steps 2 and 3 require adjustment to the three position toggle switch on the inside panel of the module.
Step 1. Set the Run mode bit to Bypass
⇒
From your operator interface, put the tonnage module into bypass mode. (Both the setup and run lights on
the tonnage module should be off.)
Rung 3:2
| PANELVIEW | CH'S 1&2 |
| MODE | MODULE |
| BUTTON | BYPASS BIT |
| (BYPASS) | |
| N10:20 O:4 |
|----] [---------------------------------------------------------------------------------------------------------------( )-----|
| 3 1 |
NOTE: Make sure that only 1 bit is set at any time for Panel Mode, integer N10:20.
Step 2. Balance Sensor Input.
1. Set three-position switch to OFF (center) position.
2. Turn balance potentiometer until 0’s are all displayed.
3. If two sensors are wired, follow this procedure for both channels.
⇒
If you are using Helm Panel Software select SET CAL NO. on menu. Adjust balance pot until 0’s are
displayed.
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