44
4. Relay Disabled means that you do not want to use this particular relay for this application.
Once you have selected the type of relay you want this relay to be, press the Enter/Yes key.
If you selected MODE CHNG RELAY, the next display will show “RELAY ON ????.” The
question marks can be a combination of the letters STPL. This indicates the modes for which the
relay will be activated. (S - Stop, T - Test, P - Production, and L - Learn, respectively) You can
set any combination of these by pressing the keys 0,1,2, and 3 which stand for the letters S, T, P,
and L respectively. Any letter which is displayed specifies a mode for which the relay will be
activated. When the display shows the correct combination, press Enter/Yes.
Each Relay, regardless of the mode designation can be configured to Turn On or Turn Off either
“Immediately” or “Cycled”. The display will show “ON-IMMEDIATE” or “ON-CYCLED”. A
relay configured as CYCLED will change states after a given number of cycles and/or a given
number of seconds. The delay in cycles can be from zero to nine cycles. Cycles are defined by a
position sensor which is user selected (one of two), and senses “ON” or “OFF” as selected. The
time delay is from 0.00 to 9.99 seconds. Cycles and Time can be used together or individually.
If ON-CYCLED is chosen, the display “DELAY 0 CYCLES” will be shown. Enter the number of
cycles (0 to 9) and press Enter/Yes. The display will now show “+0.00 SECONDS”. Enter the
time delay (0.00 to 9.99) and press Enter/Yes. The display will show “PROX SW LINE - 1".
This indicates which position sensor will be used to count the number of cycles for the delay.
Enter 1 or 2 and press Enter/Yes. The next display is “ON WHEN ON”, and pressing Next/No
will toggle the ON/OFF. This means that the relay changes states when the position sensor is on -
after the number of cycles and the time specified have completed.
The “OFF - IMMEDIATE” display will now appear which can be changed to “OFF - CYCLED”
by pressing Next and then Enter. The OFF sequence sets up exactly the same as the ON sequence
in the paragraph above except the “ON WHEN ON” display becomes “OFF WHEN ON” in the
OFF sequence. This means that the relay returns to the original state after the number of cycles
and the time specified have completed.
At this point Relay 2 can be designated or the function can be exited by pressing the Clear key.
Each relay is independent of the others. In practice, a user might set “RELAY 1 as the MODE
CHANGE RELAY, to stop a machine such as a thread roller. RELAY 2 could be set up as an
EXCEPTION RELAY connected to a diverter to separate bad parts. A short time delay might be
set to allow time for the bad part to arrive at the diverter. RELAY 3 could be set as a BREAK
RELAY to notify the operator, via a buzzer or other indicator, that a pre-set number of pieces have
been made and more blanks should be added to the feeder. An OFF delay could be set so the
indicator would stay on for several seconds before stopping the machine.