Duplexing
Manual # 42-02-1P28 A3 5-107
Duplexing
A great advantage of the Motion 2000 TS is how easily it can be duplexed. Because the duplex-
ing logic is completely internal to the computers, it requires only a connecting cable and the set-
ting of the number of cars option. The duplexing logic provides for proper assignment of hall
calls to cars and increases efficiency and decreases waiting time. (See Building Setup on page 5-
8.)
For duplex operation, serial hall calls are connected to both cars as shown in the job prints. One
car is selected to be the master dispatcher; the other is selected to be a local. For the car
selected as the Dispatcher, set CONFIG 02, System Control Parameters, Primary Dispatcher to
YES. For the other car, set Primary Dispatcher to NO.
Dispatching Algorithm
The dispatching algorithm for assigning hall calls will be real-time based on estimated time of
arrival (ETA). In calculating the estimated time of arrival for each elevator, the dispatcher will
consider, but not be limited to, the location of each elevator, the direction of travel, the existing
hall call and car call demand, door time, flight time, lobby removal time penalty and coinci-
dence call.
Hardware Connections
There are two critical items in duplexing hardware: Proper grounding between the two control-
ler subplates and proper installation of the duplexing cable. The hall calls will be connected to
both cars simultaneously. If, for any reason, the communication link between the two control-
lers does not function, each car will respond to the registered hall calls independently.
Troubleshooting
In a duplexing configuration, the controller designated the dispatcher is identified by the Dis-
patcher LED on the System Status box of the LCD Home screen. The other car is identified by
the same LED indicating the car ID of the car assuming the Dispatcher function. If the LED is
blank, the cars are not communicating.
Power Phasing
When cars are paired for duplex operation, input power phasing to the two must match.
1. Connect a multimeter, set for AC voltage, between a 2 Bus terminal on one controller
and a 2 Bus terminal on the second controller. If the meter reads close to zero (0) volts,
the two are in phase. If not:
• Swap two of the L1/L2/L3 inputs on one car and repeat step 1.
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