Construction Mode
2-46 Manual # 42-02-7223
Learning the Safety Configuration
The controller is set to match the job safety configuration before shipping. By default, Construc-
tion Mode is also enabled before the controller is shipped. You should not have to make
changes to the Safety screen until you exit Construction Mode.
The safety configuration for the job is stored in two locations in iControl (FLASH and EEPROM
on the SAF board). iControl constantly checks current safety information against stored data
and also compares the data in the two stored locations to make certain they continue to match.
If you make a change on the Safety screen, you will need to do a “learn” operation to write the
new data to iControl:
1. From the View menu select Setup and click Safety.
2. On the Setup > Safety > Configuration tab, make necessary changes.
3. Select Acquire from the Write privilege menu (if you have not yet acquired write privi-
leges to the iBox), then click Send to save the changes to iControl.
The controller will generate a safety mismatch fault because the settings you have just sent do
not match its stored information.
4. Verify that the iBox is in Inspection mode (Inspection switch set to INSP). Set the Learn
switch to ON.
5. The Learn section of the Safety > Configuration tab should indicate that the controller
is ready to learn.
6. Click on the Learn button. The controller will take a few seconds to learn the new infor-
mation and will then confirm that the safety configurations again match.
7. Set the iBox Learn switch back to the OFF position.
The message window on the Safety> Configuration tab should report Safety Configura-
tions OK.
While iControl is in Construction Mode, specific safety and operational features are automati-
cally bypassed. These are:
• All cartop signals, including DP1 and DP2 (position encoder pulse streams).
• Normal and Emergency limit switches, NTS and ETS velocity and position logic. Except
Normal Limit Switches DNTD and UNTD.
• Only Machine Room and Cartop Inspection are allowed. Will not allow Hoistway Access or
COP Inspection.
• EQ signals, both seismic and counterweight derailment, are absent.
• Fire sensor signals are absent.
•No cartop comm.
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