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G R O U P
Group Checks
To ensure all the lifts in the group are communicating with each other, check the RAM address which shows the position
of each lift.
Each lift has its position shown at the following RAM addresses.
Lift 1. - RAM location 81
Lift 2. - RAM location 91
Lift 3. - RAM location a1
Lift 4. - RAM location b1
Lift 5. - RAM location c1
Lift 6. - RAM location d1
To obtain RAM (R) address see Section 5, LCD Controller Status Options.
01-
R:80
e.g. For a 2 car group. Lift 1 is on level 1. Lift 2 is on level 2.
From lift 1 controller look at RAM address 91. (lift 2 position). This should read a value of 02.
From lift 2 controller look at RAM address 81. (lift 1 position). This should read a value of 01.
This proves each controller knows the position of the other lift in the group, therefore indicating serial communication
established.
If controllers are not communicating correctly, a value of 00 will be shown.
Group / Duplex faults
If group system is faulty check all wiring and connections as per Section 3.
Also, ensure EEPROM settings L# and #L have been set correctly. See section 2.
NB: Due to looping of 24V and 0V between all boards in the group, 24VDC shall still exist on any board, even though it
may have been turned off at the main Circuit Breaker.
DO NOT remove the 0V or 24V from such boards as back feeding shall occur which can false fire inputs.
Alternatively, it is ok to remove ALL plugs from the board. (ie removal for repair)
NOR IDL
][
80
01
ff 03
80
81
82 83
LIFT 1
02-
NOR IDL
R:90
80
90
91
LIFT 2
29
][
02
ff 03
92 93
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