Unit installation

E-3

• Now we are ready to make a preset. We will use a macro to set the analog high alarm for

the proper position and turn the rotor on in the clockwise direction. When it gets to the

alarm point, it will turn itself off. Turn the rotor to a direction you would like to make a

preset for. Read the direction with the macro we wrote earlier and write down the reading.

Now program a macro to contain two commands: first set the analog high alarm to the

direction reading you just wrote down, then call the motor CW macro. In the following

example, the macro number will be signified by MMM, the analog line will be assumed to be

line 1 on I/O board 1, the direction reading you wrote down is DDDD and the CW macro

number will be CCC.

055 MMM D or unkey (erase the old contents)

056 MMM 104 1 1 1 0 xxxx D or unkey (make the macro set the high alarm point)

056 MMM CCC D or unkey (make the macro start the rotor clockwise)

• Turn the rotor all of the way CCW with the CCW macro. From now on you can use this

macro as a "reset rotor" command. You will need to execute it and wait for it to finish

turning all of the way CCW before you tell the rotor to go to each new preset. You may

want to change the name of this macro with Command 110.

• Now try the preset we set two steps ago by executing macro MMM. It should start the

rotor turning clockwise. The high alarm should stop it when it gets to the proper position.

• Reset the rotor and try the preset again. If everything works, rename the preset macro

(MMM) to some descriptive name with Command 010 and make more presets.