Salter Brecknell 650 - Manual (Page 20)

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11. Press the SP3 key. Select enable or disable.
12. Press the CLEAR key to step back to the main menu.
To enter or change target values from the main menu:
1. Press the FUNCTIONS key.
2. Press the TARGET soft key. The scale prompts for the lower limit value.
3. Use the numeric keys to key-in the lower limit value then press the ENT key. The scale
prompts for the upper limit value.
4. Use the numeric keys to key-in the upper limit value then press the ENT key.
5. Place items on scale until the scale signals that the items are within the entered limits.
NOTE: To exit the target function, press the CLR key once.
Example: The following example shows a typical use of the TTL outputs from the TC- 2010.
1. Application is to fill a box of parts from a conveyor that.. The desired count is 1000 pcs
with tolerance of –5 pcs and + 5 pcs.
2. Set point 1 has a minimum value of 995 pcs and a maximum value of 1005 pcs.
3. Set point 2 has a jog time of 10 which is one second. (10 x 1/10
th sec)
4. Set point 3 is enabled and controls a push arm.
5. A box is placed on the scale and the weight is tared off.
6. A piece count is created.
7. The operator presses start on a control box and the conveyor starts moving parts into
the box.
8. When the count reaches 995 pcs, the conveyor stops.
9. The conveyor jogs forward for one second and stops for one second and repeats until
1005 pcs are counted.
10. A control arm then pushes the box off the scale and down a gravity conveyor.
NOTES:
1. If the count/weight value is below the minimum value, set TTL 1 is active, TTL 2 and 3
are off.
2. If the count value is equal to or greater than the minimum value but less than the
maximum value, TTL2 is active, TTL 1 and 3 are off.
3. If the count/weight value is greater than or equal to the maximum value, TTL3 is active
and TTL 1 & 2 are off.
MIN VALUE MAX VAULE
On if < Min value On if >= Min value & < Max On if >= Max value
Only one set point is active at a time. When a set point is active, the others are not.