BECT832-SSO Screwdriver Controller
Program Options and Editing
DELTA REGIS
Tools Inc.
SEQUENCE NUMBER (SL)
There are 5 programmable screw fastening sequences (SL=’U1’ to ‘U5’) available. In many cases, only the first
sequence (U1) will be needed. If the screwdriver is used to install a batch of fasteners with varying requirements,
multiple sequences may be necessary. For example, if an assembly requires the installation of 4 screws, where
3 screws are short and 1 screw is long, the controller can be programmed with 2 unique sequences - a sequence
for the short screws and one for the long screws. This would allow different time windows to be set-up for the two
different screw lengths. Each sequence must be programmed separately, and numbered in the order that the screws
will be installed (starting with Sequence U1). In this example, if the 3 short screws are to be installed first, enter
the program for Sequence ‘U1’ with a batch quantity of 3 and time parameters for the short screw. Then repeat the
program steps for Sequence ‘U2’ with a batch quantity of 1 and the time parameters for the long screw. Finally,
program Sequence ‘U3’ with a batch quantity of ‘00’ to signify that there are no further fasteners to install.
(For multiple sequences, refer also to info on setting dip switch #6 on pg. 13).
BATCH COUNT SETTING (SC)
Enter the desired number of fasteners to be installed per batch. Depending on the setting of DIP switch #1, the
display will either count down from the total batch value entered, or count up to the total batch value. The count will
only increment (and indicate a ‘GOOD’ rundown) if the rundown cycle falls within the limits set by the min and max
rundown time settings (see below). When all fasteners in the batch have been installed, the controller will indicate that
the batch is complete and the count will reset for the next cycle.
If, after a good rundown, the operator runs the screwdriver in reverse, the batch count value will decrement by a
count of one (based on the assumption that the operator is removing the last installed fastener).
The batch count can be reset to begin a new batch by pressing the ON/CLEAR key.
END OF BATCH RESET TIME (Rt)
When a rundown batch is completed, the controller provides a visual indication (count = ‘00’) and audible indication
(depending on audible settings) that the batch is complete, followed by a reset of the display count for the beginning
of the next batch. The END OF BATCH RESET TIME value determines how long these indicators will stay on before
the batch count resets. Please note that the screwdriver cannot be operated during this reset time period.
SLOW START TIME (RC) and SLOW START SPEED (SP)
Please refer to the section entitled ‘Screwdriver Speed Adjustments’ for further information on the Slow Start function.
MAXIMUM AND MINIMUM RUNDOWN TIME SETTINGS (Ht, Lt)
The controller determines whether a fastener rundown is deemed GOOD (OK) or NO GOOD (NG) by comparing the
actual time taken for the rundown cycle to a time window programmed by the user. For example, a cross threaded
screw will cause the screwdriver to shut-off too early (before min time) and a stripped screw will cause the driver to
run too long (beyond max time).
Cycle
Start
MIN Time
MAX Time
NO GOOD (NG)
GOOD (OK)
NO GOOD (NG)
If the fastening cycle completes (clutch trips) within the programmed time window, the
rundown cycle will be accepted as GOOD (OK) and the batch count will increment.
Time (seconds)
RECONFIRM TIME (LL)
If the assembly process requires that the operator has the ability to ‘double-hit’ the fastener (release and retrigger the
screwdriver on a fastener that has just been installed), a reconfirm time can be programmed into the control. During
this time period (which immediately follows the completion of the rundown), the operator is able to re-trigger the tool
without causing a No Good (NG) error signal to be generated. Slow start time (RC) must be set to a value of ‘0.0’ for
this function to be available, so that the tool has full power to run the re-hit cycle.
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