Delta Regis BECT840-SSO User manual

BECT840/940(N)-SSO(-3SL) Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
CAUTION - Please read, understand, and follow all operating and safety instructions in
this manual before using the BECT840/940-SSO controller.
This controller is designed for use exclusively with the following Delta Regis Brushless
Electric Screwdrivers:
BECT840(N)-SSO: CESL810-812, CESL823-829(P/F/PF), CESPT824-829
BECT940-SSO: CESL(T)835(P)M-CESL(T)895(P)M, CESP(T)835-865,
CESL(T)935-955(P/F/PF), CESLT835-875(M/F)/RA(H/S)
Do not attempt to use these controller with any other tools.
If you have any questions or concerns, please contact us at:
Delta Regis Tools, Inc.
7370 Commercial Circle
Fort Pierce, FL 34951
USA
Ph [phone]
Fx [phone]
E-mail: [email protected]
Website: www.deltaregis.com
Doc. Delta Regis_BECT840_940-SSO_R0.1
Copyright © 2018 Delta Regis Tools, Inc

BECT840/940(N)-SSO Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
www.deltaregis.com
Page 2
Important - Installation and Safety
1. Please read and understand the operation manual and follow all safety and operation instructions.
2. Place the controller in a suitable dry, indoor location. Do not use this controller in damp, wet or high
temperature environments. Do not use in the presence of ammable liquids or gases.
3. Ensure that the controller has proper ventilation. Do not expose the controller to areas subject to
airborne contaminants (eg. dust, metal lings).
4. Use only a properly grounded electrical outlet of the correct supply voltage to power the screwdriver
co ntroller. Ensure that the supply outlet is overload protected and of su󰀩cient amperage capacity.
5. Use only the correct plug for the controller and outlet. Hold the plug of the power cord when
connecting or disconnecting. Do not pull on the cable.
6. Do not expose the cable or controller to oil, chemicals, or heat. Ensure that the cable is routed and
used in such a manner as to not be subject to sharp objects that may abrade or cut the cable.
7. Locate the controller in a suitable, safe location on a steady surface. Do not place in a high location
where there may be a risk of it falling. Secure the controller in position to prevent possible movement
caused by pulling on the power or tool cables.
8. Do not cover the controller or stack any objects on top of or near the controller. Ensure that adequate
clearance and ventilation is provided around the perimeter of the controller.
9. The BECT840/940(N)-SSO Controllers are for use exclusively with Delta Regis brand screwdrivers
as specied on page 3. Use of these controllers with any other tool may result in malfunction,
damage, or injury.
10. In the event that the controller is overloaded beyond the maximum current rating, an internal fuse will
disrupt power. Should the controller stop functioning, or exhibit abnormal or intermittent operation,
please discontinue use immediately and send the controller to an authorized service centre for
troubleshooting and repair.
11. Excessive duty cycle will cause the tool and/or controller to overheat. If this occurs, discontinue use
until cooled down and reduce cycle rate. As a general rule, do not exceed 10-15 screws/minute.
12. The brushless screwdrivers incorporate a protection circuit which stops the electric screwdriver if
the tool is switched from forward to reverse while running. Should this happen, the operator must
release the tool trigger and restart the fastening cycle.
13. Turn the main power switch o󰀨 when the controller is not being used. Unplug the controller if it is not
being used on a regular basis.
14. Do not attempt to disassemble or repair the screwdriver or controller. Repairs should only be
performed by qualied technicians properly trained in the safe operation, troubleshooting, and repair
of these devices. Please consult Delta Regis for the location of the nearest service depot.
15. Use only the factory specied Delta Regis brand replacement parts and accessories with these tools
and controllers.
16. Any damage to the tool and/or controller resulting from misuse, abuse, or failure to follow these
guidelines will void the limited product warranty.
Warning - Failure to understand and follow proper installation guidelines, safety requirements,
and operating instructions may result in malfunction, component damage, property damage,
shock hazard, re hazard, injury or death.
Grounding - This controller (and AC power cord) is equipped with a 3-prong electrical receptacle/plug
with ground pin. The controller must be connected to a properly grounded AC electrical outlet. Do not
attempt to use this controller without a properly functioning ground connection. Never connect a live
circuit to the ground pin or internal yellow-green ground wire.

BECT840/940(N)-SSO Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
www.deltaregis.com
Page 3
Model Number BECT840(N)-SSO(-3SL); BECT940-SSO(-3SL)
Input 100–240V AC, 50/60Hz, ~6.3A
Output 40 / 32 / 24 VDC, 220W (360W BECT940-SSO)
Speeds Hi / Lo (switch selectable)
Applicable Screwdriver Models
BECT840(N)-SSO(-3SL) • CESL810-812
• CESL823-829(P/F/PF)
• CESPT824-829
BECT940-SSO(-3SL) • All BECT840(N)-SSO compatible models
• CESL(T)835(P)M-CESL(T)895(P)M
• CESP(T)835-865
• CESL(T)935-955(P/F/PF)
• CESLT835-875(M/F)/RA(H/S)
Slow Start Function Selectable ON / OFF
Slow Start Time Adjustment 0–9.9 seconds
Slow Start Speed Adjustment ~30–100% of rated speed
Count Method (selectable) Count up to total / count down from total
Count Setting Range (rundowns/batch) 1–99
Time Window Settings
Minimum acceptable rundown time 0.00–9.90 seconds (0.01 sec increments)
Maximum acceptable rundown time 0.0–9.9 seconds (0.1 sec increments)
Audible Alarm Settings (selectable)
‘On’ sounds when Good / No Good / Batch Complete
‘OF‘ sounds when No Good
‘FF’ sounds when Batch Complete / No Good
‘EF‘ sounds when Good / Batch Complete
Input Connections Remote Start, Remote Reverse, Disable Tool,
External Conrm, Enable Batch, External Clear
Output Connections Rundown OK, Rundown NG, Batch Complete
Dimensions (L x W x H) 248 x 130 x 100 mm
Weight 2.5 kg
Approvals CE/RoHS/ETL
Included Accessories AC power cord, Key for program lock, User
manual

BECT840/940(N)-SSO Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
www.deltaregis.com
Page 4
Controller Overview
AC INPUT CABLE
RECEPTACLE AND
MAIN POWER
ON/OFF SWITCH
SCREWDRIVER
CABLE CONNECTOR
SCREWDRIVER
HI/LO SPEED
SELECTOR
INPUT/OUTPUT
CONNECTION
TERMINAL BLOCK
DIP SWITCH FOR
SELECTING OPTIONAL
FUNCTIONS
KEYPAD AND INDICATORS
FOR PROGRAMMING AND
STATUS MONITORING
PROGRAM FUNCTION
KEY LOCK
Front Face of
Controller
Rear Panel of
Controller
OUTPUT VOLTAGE
SELECT SWITCH
24/32 OR 32/40 VDC
INPUT VOLTAGE
SELECT SWITCH
110V OR 220V
(TOP OF UNIT,
BECT940-SSO ONLY)

BECT840/940(N)-SSO Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
www.deltaregis.com
Page 5
Getting Started
The BECT840/940(N)-SSO is designed to work with both 32VDC and 40VDC brushless screwdrivers. In
order to accomodate the series of tool being used, an OUTPUT voltage must be set via a covered selection
switch on the rear face of the controller. Slightly loosen (do not remove) the two screws securing the
OUTPUT cover in place. Pivot the cover down and move the slide switch left (24V–32V) for 32VDC brushless
screwdrivers or right (32V–40V) for 40VDC brushless screwdrivers. Reposition and tighten the cover.
Connect the 6-pin cable of a compatible Delta Regis brushless screwdriver from the tool to the controller.
Delta Regis 40VDC brushless tools plug directly into the controller connector. 32VDC brushless tools require
use of an adapter cable. Ensure that the cable is installed in the proper orientation (spring guard at tool end)
and that the connectors are seated properly with the fastening rings secured. On the BECT940-SSO, it is
important to set the proper supply voltage on the input voltage select switch before the unit is plugged in to
power.
Plug the controller into a properly grounded AC outlet. Turn ON the main power switch on the back of the
controller. The audible alarm will beep, the RUN indicator LED (green) will light up, and the display panel will
show the starting batch count value. One of the three output voltage LED indicators (24/32/40V) will be lit up,
indicating the controller’s output voltage to the tool. Changing the speed selector switch from HI to LO will
toggle between the two available speeds/voltages for that series of tool.
Keypad and Programming Basics
ON - CLEAR KEY
Pressing and holding the ON
button for 5+ seconds will cause
the display to go blank. In this
mode the screwdriver will function
at HI/LO speed, but there will be
no other functionality (counting,
slow start, etc). Pressing ON from
this mode will restore the display
and added functionality.
Other uses of ON/CLEAR
are explained where required
throughout this manual.
SELECT KEY
The SELECT key is used primarily
for entering the program editing
mode and cycling through the
available program settings.
Other uses of SELECT are
explained where required
throughout this manual.
UP / DOWN ARROW KEYS
The UP and DOWN arrow keys
are primarily used to make
adjustments to numeric values
when in the program edit mode.
Pressing both keys
simultaneously cycles through
the available sound options for
the controller.
Other uses of the ARROW keys
are explained where required
throughout this manual.
SOFTWARE KEYPAD LOCK
Pressing SELECT + UP ARROW together will toggle the
software keypad lock on/o󰀨. This lock limits functionality of
the keypad (eg - no entering program edit mode).
‘LC’ will momentarily display, indicating locked. ‘Un’ will
display indicating unlocked.

BECT840/940(N)-SSO Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
www.deltaregis.com
Page 6
SEQUENCE NUMBER (SL)
There are 5 programmable screw fastening sequences (SL=’U1’ to ‘U5’) available. In many cases, only the rst
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 di󰀨erent time windows to be set-up for the two
di󰀨erent 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 rst, 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-o󰀨 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 reconrm 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.

Page 7
BECT8/940(N)-SSO
DELTA REGIS
Tools Inc.
Notes and Guidelines:
Programming Mode Locks
To view or edit the sequences, the KEY
LOCK must be unlocked and the software
lock (toggled by pressing SELECT+UP
simultaneously) must also be unlocked
(Un). If the lock is on when you attempt
to enter programming an LC will be
displayed.
(Rt) Batch Reset Time
At batch completion, the screwdriver will
not operate for the length of the batch
reset time setting.
(RC) Slow Start Time
The slow start time must be less than the
time required to install the screw. The tool
must switch to full speed before the clutch
activates for shut-o󰀨.
(SP) Slow Start Speed
Slow start speed is adjustable in steps
from lowest (L1 ~ 30% of full spd) to
highest (L9 ~ 85% of full spd). L0 equals
100% of run speed or slow start o󰀨.
(Ht) High Time and (Lt) Low Time
The Ht and Lt settings establish a time
window for OK/NG evaluation of a fastener
rundown. Low Time (Lt) must be set to a
value lower than High Time (Ht) during
programming or an error (Er) will occur.
Ht value must be > Lt.
SEQUENCE LIST
(5 available sequences)
Press and hold SELECT
for about 5 seconds
until ‘SL’ displays.
Release to view
programmed value.
SEQUENCE # U1-U5
(select # to edit) Adjust value
UP / DOWN
Press until
‘SC’ displays.
Release to
view value. Adjust value
UP / DOWN
SCREW BATCH COUNT
(# of screws per batch)
MIN = 00 screws
MAX = 99 screws
Press until
‘Rt’ displays.
Release to
view value. Adjust value
UP / DOWN
BATCH RESET TIME
(delay after batch OK)
0.0 - 9.9 seconds
(tool will be inactive)
Press until
‘RC’ displays.
Release to
view value. Adjust value
UP / DOWN
SLOW START TIME
(length of slow start)
0.0 - 9.9 seconds
(set < rundown time)
Press until
‘Ht’ displays.
Release to
view value. Adjust value
UP / DOWN
HIGH TIME SETTING
(max. rundown time)
0.0 - 9.9 seconds
(cycle NG if time > Ht)
Press until
‘Lt’ displays.
Release to
view value. LOW TIME SETTING
(min. rundown time)
3 digit value, 0.00 - 9.99 seconds, format‘x.xx.’
ON/CLR to toggle left/right, value shown = 1.25
Press until
‘SP’ displays.
Release to
view value. Adjust value
UP / DOWN
SLOW START SPEED
(percent of run speed)
L1 (slow) - L9 (fast)
L0 = slow start o
START - EDIT
PROGRAM
continued on next page...
Adjust value
UP / DOWN

BECT840/940(N)-SSO Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
www.deltaregis.com
Page 8
3 Digit Time Values
The values for Lt, LL, rt, rr, and rS are 3-digit time values in
seconds, with a format of x.xx.
To view/edit the entered value, toggle left and right using
the ‘ON/CLEAR’ button. The position of the decimal point
on the screen indicates whether you are viewing the ‘ones’
and ‘tenths’ digits, or the ‘tenths’ and ‘hundredths’ digits
respectively.
Note that the ‘tenths’ digit appears on both screens.
Press until
‘LL’ displays.
Release to
view value. Adjust value
UP / DOWN
RE-HIT SCREW TIME
(re-hit after tightening)
3 digit value, 0.00 - 9.99 seconds, format‘x.xx.’
ON/CLR to toggle left/right, value shown = 0.50
The final option displayed will
be depend on the settings of ‘Rc’,
‘LL’ and ‘rt’. Once the final value is
adjusted, press SELECT to return to
normal operation.
EXIT PROGRAM
MODE
Press until
‘rt’ displays.
Release to
view value. Adjust value
UP / DOWN
AUTO-REVERSE TIME
(reverse after clutchout)
3 digit value, 0.00 - 9.99 seconds, format‘x.xx.’
ON/CLR to toggle left/right, value shown = 0.25
DISABLE ON ‘NG’
(conrm to continue)
n = no (o)
y = yes (must conrm)
Press until
‘nS’ displays.
Release to
view value. Toggle value
(LL) Re-Hit Screw Time
Programming of the (LL) value is
only available if Slow Start Time
(RC) is set to 0.0 (slow start o󰀨).
The re-hit function can’t be used in
conjunction with slow start.
(nS) Disable Screwdriver on ‘NG’
If ‘nS’ is set to y (yes), the screwdriver will be
disabled after a no good (NG) rundown. The operator
must conrm by pressing the SELECT key, or an
external conrm signal must be input through the I/O.
(applies to forward cw rotation only).
(rt) Auto-Reverse Time
Entering a value greater than 0.00
for auto-reverse time will cause the
driver to reverse after the clutch
trips for the preset amount of time.
‘LL’ must be set to 0.00 for the ‘rt’
function to be available.
Press until
‘rr’ displays.
Release to
view value. Adjust value
UP / DOWN
REVERSE / TIGHTEN
(reverse /pause/tighten)
3 digit value, 0.00 - 9.99 seconds, format‘x.xx.’
ON/CLR to toggle left/right, value shown = 0.20
(rr) and (rS)
Reverse / Pause / Tighten
Entering a value greater than 0.00
for ‘rr’ will start the cycle with a
timed reverse (‘rr’ value), followed
by a delay (‘rS’ value), then forward
until the clutch activates.
Note:
- FWD/REV switch must be in REV
position for the function to work.
- ‘LL’ and ‘rt’ must equal 0.00 for the
‘rr’ function to be available.
Press until
‘rr’ displays.
Release to
view value. Adjust value
UP / DOWN
PAUSE TIME
(delay from REV to FWD)
3 digit value, 0.00 - 9.99 seconds, format‘x.xx.’
ON/CLR to toggle left/right, value shown = 3.25
continued from previous page...

BECT840/940(N)-SSO Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
www.deltaregis.com
Page 9
Optional ‘dt’ and ‘tt’ Cycle Time Alarms, other misc options
Two optional alarms are provided to alert the operator if too much time is being taken to run the screws into the
assembly. The ‘dt’ Standby Time Alarm can be set in 1 second intervals. It is the allowable time to run each screw
cycle. If, during the batch, the screwdriver remains idle for a time exceeding the ‘dt’ value, an audible alarm will sound
and the display will ash ‘dt’ until the driver is triggered for the next cycle. (Note: depending on other program settings,
the operator may need to press ‘S’ to continue driving screws if ‘dt’ is ashing in the display.)
The ‘tt’ Total Batch Time Alarm can be set in 1 minute intervals. If the batch is not completed within the ‘tt’ time setting,
an alarm will sound and the display will ash ‘tt’ until the operator runs the driver and completes the batch. Only one of
the two optional alarms can be selected for use.
MAX. STANDBY TIME
BETWEEN RUNDOWNS
Time (seconds)
Range: 00 - 99
Press until ‘dt’ or ‘tt’
displays. Release to
view value.
Adjust value
UP / DOWN
MAX. TOTAL BATCH
TIME WARNING
Time (minutes)
Range: 00 - 99
Adjust value
UP / DOWN
n = no
y = yes
Toggle value
GATE SWITCH INPUT
PREFERRED LOGIC
Hi / Lo Toggle value
Press ‘SELECT’ to exit setting of ‘dt’ value..
If ‘dt’ value is greater than ‘00’, the display
will skip the ‘tt’ option and prompt for the
‘Sr’ setting.
If ‘dt’ = 00, the display will prompt for input
of a ‘tt’ value.
Press ‘SELECT’ to exit setting of ‘tt’ value.
Display will prompt for Sr setting
When using a single gate switch (DIP SW2 On)
to enable the batch start, option ‘SA’ allows the
choice of switching with either of the following:
Hi = use a normally closed contact,
momentarily open to enable
Lo = use a normally open contact,
momentarily close to enable
Press ‘SELECT’ to return to normal operating
mode. Count value is displayed.
The ‘Sr’ value is valid when the controller is
set to run multiple sequences (DIP SW6 On)
and the batch enable input (DIP SW2 On, or
DIP SW 2 & 4 On) is being used to conrm
the batch start via an external switch.
If ‘Sr’ is set to the default value of ‘n’ (no),
the controller will require an external enable
input at the beginning of the rst sequence
U1 only.
If ‘Sr’ is set to ‘y’ (yes), the controller will
require an enable input at the beginning of
each sequence (eg. U1, U2, and U3 will all
require an enable if 3 sequences are running
sequentially).
Press ‘SELECT’ to exit setting of ‘Sr’ value.
Display will prompt for SA setting

BECT840/940(N)-SSO Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
www.deltaregis.com
Page 10
Screwdriver Speed Adjustments
The controller provides two speed control options for the tool - HI/LO running speed and optional slow start.
A running speed of HI or LO may be selected via the rocker switch on the front face of the controller. Please
refer to the screwdriver catalog specications for the tool’s free speed RPM at the HI and LO settings.
The controller also has a selectable slow start option. This option can be helpful in engaging screw threads
properly to avoid cross-threading. The slow start is intended for initiating the fastener rundown only - the slow
start time must be limited so that the tool switches to full speed before the fastener completes its rundown.
There are two separate variables for setting up the slow start function - time and speed. Set the slow start
time by entering the desired slow start time value (0.0–9.9 sec) for function ‘RC’ during the programming
sequence. Set the slow start speed by selecting a value for function ‘SP’. You can choose between values
of L1-L9 (30% ~ 85% of screwdriver free speed rpm) or L0 (100%). Exit the program mode and engage the
start (trigger or push) mechanism on the screwdriver to check settings. Repeat until the desired result is
achieved.
Refer to the programming ow chart (pg. 7) for further details on entering parameters.
Audible Alarm Settings / OK and NG Lights
Along with the two digit count display, the controller also provides visual and audible indication of rundown
OK, rundown NG, and batch complete.
The OK (green) and NG (red) lamps indicate whether the rundown was GOOD or NO GOOD. If the rundown
is within the set parameters, the OK lamp will light up at the end of the rundown cycle. If the rundown is no
good, the NG lamp will light at the end of the rundown. When the fastening batch is completed, the batch
count value will display ‘00’ and then reset after a time delay determined by the value programmed into the
END OF BATCH RESET TIMER.
To suit individual user preferences, four variations of the audible alert are available. When active, the audible
alert provides a single short beep for rundown OK, a single long beep for batch complete, three short
beeps for rundown NG (below MIN time setting) and continuous short beeps until the trigger is released for
rundown NG (above MAX time setting).
The four selectable settings are:
ON sounds when... OK / NG / Batch Complete
OF sounds when... NG
FF sounds when... NG / Batch Complete
EF sounds when... OK / Batch Complete
To change the audible alert setting, with the controller in operating mode (not in programming mode), press
the UP and DOWN arrow keys simultaneously. The controller will loop to the next available audible setting
and show the new current audible setting value in the display.
Press the UP & DOWN
arrow keys simultaneously
to choose the next available
audible alarm setting.

BECT840/940(N)-SSO Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
www.deltaregis.com
Page 11
Input / Output Connector
An input/output connector is provided on the
back face of the controller for interfacing signals
with external equipment.
V+
DC voltage (+24VDC, 200mA max) available if
required to power external circuits
OK
Closes an output contact when an acceptable
(GOOD) rundown cycle is completed
NG
Closes an output contact when an unacceptable
(NG) rundown cycle occurs
OK ALL
Closes an output contact when the batch is
completed
COM
Common (0VDC) - used when wiring in external
input switches, or in conjunction with V+ supply
ENABLE
Input for external switch(es) verifying that the
driver can be enabled to begin a new batch. The
use of external switches is dependent on DIP
Switch Settings. Please see next page.
CLEAR
Input for external resetting of the batch count
CONFIRM
Input for external conrmation that the process
can continue (see DIP SW3 description)
OFF
ON
OFF
ON
OFF
ON
OFF
ON
Output Terminals
OUTPUT TERMINALS 2 thru 7
Connection pairs 2/3, 4/5 and 6/7 are dry relay
contact outputs (AC/DC 40V, 250mA max).
INPUT TERMINALS 8 thru 13, COM 14
Connect an external switch between COM
(terminal 14) and the input terminal (8–13). Use
a separate switch contact for each required
input. Closing the contact will activate the input.
DO NOT SUPPLY POWER TO INPUTS.
Input Terminals
OFF
ON
DISABLE
Input to externally disable the screwdriver
between rundowns as required by the process.
START and REVERSE
The reverse input works in conjunction with
the start input. Providing a START input signal
will remotely start the screwdriver; providing a
REVERSE input signal prior to the START input
will start the tool in reverse. This does not apply
to ‘-3SL’ models (see pg. 14 for details).
OFF
ON
V+ (24VDC, 200mA max)
OK output
NG output
OK ALL output
COM (0VDC)
CLEAR input
ENABLE input
CONFIRM input
DISABLE input
REVERSE input (‘-3SL’ SEQ input 2)
START input (‘-3SL’ SEQ input 1)

BECT840/940(N)-SSO Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
www.deltaregis.com
Page 12
DIP Switch Settings
There is a 7-position DIP Switch mounted in the rear face of the controller,
next to the I/O Connector. The controller is shipped from the factory with all
switches in the OFF (down) position. Please refer to the following guide to
select the proper switch positions to suit your specic application.
SW 1 - Counting Method
Determines whether the controller counts up from zero to the programmed batch value, or
counts down from the batch value to zero. OFF = Count Down, ON = Count Up
SW 2 - External Switch (GATE Input)
If the process requires that an external input signal be present (at the GATE input) to allow the
screwdriver to enable to start a new batch, then SW2 must be in the ON position. When SW2 is OFF,
the external GATE input signal is not required. Refer to the diagrams below (SW 4 description) for
further details on input signals and signal logic.
SW 3 - Manual or External Conrm to Reset Batch
With SW3 in the OFF position, the controller automatically resets to begin a new counting
batch after completion of the previous batch. Placing SW3 in the ON position will require the operator
to press the SELECT button (or require an external CONFIRM input) at the end of each batch before
the controller will reset to run a new batch. Upon batch completion, the display will ash ‘C3’ and the
screwdriver will be disabled until the SELECT button is pressed (or a CONFIRM signal is input).
SW 4 - Multiple External Switch Inputs (GATE Input)
In some instances, it may be desireable to interface two external input switches wired in
parallel to the GATE input. As an example, one switch might be triggered by a nished part leaving the
assembly station while the other is triggered by a new part entering the station. With SW4 in the OFF
position (and SW2 ON), one external switch signal is required to enable the screwdriver. With SW4 in
the ON position (and SW2 ON), two external switch signals are required to enable the driver.
OFF
ON
Last batch
completed
Batch resets,
driver enabled
Input
Signal
Waiting for input,
driver disabled.
Display ashes ‘C1’
External Switch
(GATE Input)
1 External Signal at GATE Input
(DIP SW2 on / SW4 o󰀨)
OFF
ON
Last batch
completed
Batch resets,
driver enabled
Input
Signal 1
Waiting for input,
driver disabled.
Display ashes ‘C2’
External Switch
(GATE Input)
Input
Signal 2
2 External Signals at GATE Input
(DIP SW2 on / SW4 on)

BECT840/940(N)-SSO Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
www.deltaregis.com
Page 13
SW 5 - Evaluate Rundown Time
When SW 5 is moved to the ON position, the controller enters a rundown evaluation mode, which can
assist in determining proper time window settings to program for the application. The operator will be allowed
to run multiple rundown cycles (as many as desired) and the display will show the actual cycle time for each
rundown. Certain program parameters must be entered after SW 5 is turned on, before the actual testing can
start. Please keep in mind that the fastener rundown time will change if any adjustments are made to running
speed (Hi/Lo), slow start speed, or slow start time. It is important that these adjustments are nalized before
using this rundown evaluation procedure.
The test sequence is as follows: (Note: The parameter setup portion of this test follows the standard
programming ow chart outlined earlier in the manual.)
1. Move DIP SW5 to the ON position.
2. The display ashes a value (eg. U1) - this value is the sequence number (SL) that the controller will use for
setup of the rundown parameters. If you wish to use a di󰀨erent sequence number, use the UP/DN arrow
keys to change.
3. Press SELECT. ‘SC’ will show in the display, followed by a value. Adjust the value to the desired ‘batch
count setting’ for your application.
4. Press SELECT. ‘Rt’ will show in the display, followed by a value. Adjust the value to the desired ‘end of
batch reset time’ for your application.
5. Press SELECT. ‘RC’ will show in the display, followed by a value. Adjust the value to the desired ‘slow start
time’ for your application.
6. Press SELECT. ‘SP’ will show in the display, followed by a value. Select a value for the desired slow start
speed (L0-L9). Refer to pg 8 for further details on speed settings.
7. Press SELECT. The display shows ‘0.0’. The tool is now ready to run tests. Use the screwdriver to
rundown the fastener on the application. The display will count up time in 0.1 second increments until the
cycle completes. Once complete, the cycle time will show in the display. Repeat the rundown as many
times as desired.
8. Move SW5 to the OFF position. The controller will program the last recorded rundown time as the
sequence’s Max. Acceptable Rundown Time (Ht) value. The controller returns to normal operation mode
and displays the batch count value.
9. Enter the Programming Mode (press and hold SELECT for 5 sec) to review/verify the settings and make
any nal adjustments to the time window values. Please refer to the programming ow chart for further
details on settings and values.
SW 6 - Multiple Rundown Sequences
With SW6 in the OFF position, the controller will run only the current program sequence to complete
the batch - it will not step to the next programmed sequence.
If you have multiple sequences programmed which you wish to run sequentially (see Sequence Number
(SL) on the programming page), setting SW6 to ON will cause the controller to step through the programmed
sequences in order until they have all been completed. A batch complete signal will be output once all
sequences have completed, and the controller will loop back to the start of sequence SL=U1 to start the next
batch. Note - if the controller encounters a sequence with a screw batch count (SC) set as zero, the controller
identies this as the end of the sequences and will loop back to the beginning to start a new batch.
SW 7 - Decrement Count on Reverse (see pg. 14 for -3SL version)
Following an OK rundown, if the operator switches the tool into REV and activates the trigger, the
count will decrement. With SW 7 OFF, the count will decrement by one screw. With SW 7 ON, the count will
decrement for each trigger activation in reverse (until the start count value has been reached).

BECT840/940(N)-SSO Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
www.deltaregis.com
Page 14
Sequence Selection Inputs (-3SL Version Controllers Only)
The optional ‘-3SL Version’ of the controller has two input terminals (8 and 9) which allow selection of one of
the rst three programmed sequences (U1 through U3). The input is activated (logic state ‘1’) by connecting
the appropriate input terminal (8 and/or 9) to the COM terminal (14) through a dry switch contact.
The input logic is as follows:
Logic State* Resulting Action
Input 9 Input 8
0 0 No sequence selection, use the current sequence
0 1 Select Sequence ‘U1’
1 0 Select Sequence ‘U2’
1 1 Select Sequence ‘U3’
* Logic state is ‘0’ when the input terminal (8 or 9) is not connected to COM (terminal 14), logic state is ‘1’
when connected to the COM terminal.
Other notes regarding sequence selection:
1. Sequence select ‘00’ signies that sequence selection is turned o󰀨. The controller will remain in the
last selected sequence. If the sequence input is changed to ‘00’ in the middle of the batch cycle, the
controller will maintain its value in the batch count and wait for the operator to complete the batch. With
the input at ‘00’, the active sequence number can be changed using the programming buttons if desired.
2. Sequence input changes can only be made while the screwdriver is idle. While in the programming
mode (using the keypad to change settings), any attempt to change the sequence remotely through the
inputs will not occur until the user exits the setting mode.
3. When switching between sequences, the screwdriver will be disabled for a 1 second interval. During
this time, the buzzer will sound and both the OK and NG outputs will turn on together to acknowledge
the change. The display will show the new sequence number, followed by the starting batch count
value. After the 1 second sequence change, the screwdriver will be ready to operate (depending on the
conditions of the enable and disable inputs).
4. If the sequence is changed part way through the batch count (eg. from U1 to U2; U1 has a batch count
of 5 and only 3 screws have been installed), the change will take place immediately even though the
operator did not nish the batch. The count will reset to the starting value for the new U2 sequence that
has been selected. This is also the case (immediate change regardless of batch count value) when
changing from a sequence input of ‘00’ (o󰀨) to U1, U2 or U3.
5. DIP SW6 on the controller, when in the ON position, normally activates continuous stepping of the
program through multiple sequences. In the ‘-3SL VERSION’ of the controller, DIP SW6 will only be
functional if the input value for the sequence selection inputs is ‘00’ (o󰀨).
6. Following an OK rundown, if the operator switches the tool into REV and activates the trigger, the DIP
SW 7 setting determines how reversing the screwdriver a󰀨ects the batch count. With SW 7 OFF, the
count will decrement by one screw. With SW 7 ON, the count will not decrement when the driver is run
in reverse.

BECT840/940(N)-SSO Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
www.deltaregis.com
Page 15
During operation of the counting controller and screwdriver, the LED display may indicate an error code.
These codes indicate a fault that was encountered during the operation of the tool/controller.
Code Indicates Error Description Possible Cause / Solution
E3 Low Voltage
Protection
Screwdriver has stopped
because the operating
voltage is too low.
- tool supply voltage has dropped below acceptable
levels due to excessive current draw or malfunction.
If problem persists, send in for evaluation.
E4 High Temperature
Protection
Screwdriver has stopped
because the operating
temperature is too high.
- excessive duty cycle; allow tool/controller to cool
down and re-test at lower duty cycle
- internal issue; send for evaluation/service
E5 Stall Protection Screwdriver has stopped
because the motor stalled
abnormally.
- prevailing torque (eg. soft joint, thread cutting)
is causing the tool’s motor to slow down and stall
before reaching nal torque; evaluate suitability of
tool for the application
- internal damage to gearing, clutch, or lack of
lubrication is a󰀨ecting motor’s ability to complete the
rundown; inspect gearing and clutch
E7 FWD/REV Switch
Error
Controller detected a
change in the position of
the FWD/REV switch while
the tool was running.
- FWD/REV Button was moved by the operator
during rundown
- switch PCB improperly positioned in tool housing
or magnetic switching element has failed
E8 Brake Error Controller detected an
abnormal brake (clutch)
signal before the tool was
started.
- clutch is stuck at the top of the clutch ramp,
possibly caused by operator releasing trigger too
early in anticipation of shut-o󰀨. Turn o󰀨 power to the
driver, put a 1/4” hex key in the output shaft and turn
the output shaft to reset the clutch - you will here
a click when it resets. Ensure that operators are
instructed to hold the trigger until the tool clicks over
the clutch and shuts o󰀨.
- internal push rod mechanism for clutch shut-
o󰀨 is sticking or of incorrect length. Send tool for
evaluation/service.
E9 Flash Memory
Error
The internal ash memory
has failed.
- reset the controller to see if the error clears; if error
persists, send in for evaluation and service.
PC Power Change An error or change in the
tool supply voltage has
been detected.
- Hi/Lo speed switch position was changed with the
key lock turned ON. Lock must be o󰀨 to change
speed setting.
- voltage setting incorrect for screwdriver being
used. (eg. 40V setting selected for a 32V driver)
- very soft joint causing power drop during rundown
- faulty tool cable/connection; test with a new cable.

BECT840/940(N)-SSO Screwdriver Controller
Operation Manual
DELTA REGIS
Tools Inc.
www.deltaregis.com
Page 16
Display Codes
When waiting for operator or external input, the LED display will show one of a series of codes, depending
on the DIP switch settings and the expected input. Further explanation is provide below.
Waiting for input from a single external
switch connected to GATE input.
DIP Settings - SW2(On), SW3(O󰀨), SW4(O󰀨)
Waiting for input from two external
switches connected to GATE input.
DIP Settings - SW2(On), SW3(O󰀨), SW4(On)
Waiting for operator to press SELECT/
CONFIRM to verify batch reset.
DIP Settings - SW2(O󰀨), SW3(On), SW4(O󰀨)
Waiting for input from 1 external switch
and manual SELECT/CONFIRM.
DIP Settings - SW2(On), SW3(On), SW4(O󰀨)
Waiting for input from 2 external
switches & manual SELECT/CONFIRM.
DIP Settings - SW2(On), SW3(On), SW4(On)
Waiting for operator to press CLEAR.
Error detected during input of
conrmation signal. Press SELECT/
CONFIRM again to acknowledge.
Incorrect set-up during programming
mode. Example ‘Lt (min time) value
entered is > Ht (max time) value’.
The BECT840/940(N)-SSO Controllers are not user serviceable. Any repairs must be performed by a
Delta Regis authorized service center. Please consult Delta Regis Tools for further information and the
location of the nearest authorized service center.
Repairs to brushless DC screwdrivers must be performed by trained personnel, knowledgeable and
qualied in the repair of DC electric screwdrivers. Use only genuine Delta Regis parts when servicing
these products.
Do not attempt to modify the tools or controllers.
Service
The BECT840/940(N)-SSO Controller is warranted for one year from the date of purchase against defects
in material and workmanship. This warranty does not cover damage due to transportation, abuse,
misuse, or improper service. Our sole remedy is to repair or replace (at our discretion) any unit found
to be defective due to defects in material or workmanship. It is the responsibility of the user to return
any product thought to be defective, freight prepaid, to our warehouse for inspection and evaluation.
There is no warranty of merchantability or tness of purpose. In no event will Delta Regis Tools, Inc.
be liable for business interruptions, loss of prots, harm, injury, damage, personal injury, cost of delay,
or any other special, indirect, incidental, or consequential losses, costs, or damages.
Warranty