Braun D124.1S2 Manual

Post Office Box 29, Mount Holly, N.C. 28120 USA
Phone [phone] Fax [phone]
E-mail: BRAUNINST @ aol.com
Post Office Box 1106, D71301 Waiblingen
Phone [phone] Fax [phone]
E-mail: info @ braun-tacho.de
Internet: www.braun-tacho.de
D124.1S2-Manual_EN_Rev03 2020_APR_28 1
Speed and Direction Monitor Series
D124.1S2
with analog output and setpoint alarm
Instructions and
Operation Manual
valid for serial nos.
exceeding 211600
Contents page
Specifications .......................................................................................................2
Instructions for Use
Short form instructions for the operation...................................................3
Error signals...............................................................................................3
Programming
Procedure ...............................................................................................3, 6
Summary of programming steps................................................................4
Input, display and direction performance ............................................ 7 - 8
Analog output.............................................................................................9
Setpoint alarm............................................................................................9
Data Interface.............................................................................................9
Installation
Safety notes................................................................................................5
Function diagram and terminal nos..........................................................11
Dimensions ..............................................................................................12
Revision notes ....................................................................................................12

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Specifications
Design snap-on track enclosure for DIN 50022 rail 35 mm,
Dimensions:
Length 100 mm, width (incl. terminal blocks) 104 mm,, height 110 mm
weight....................................................................approx. 400 g
enclosure material ...........................................................plastics
terminals size................................................................. 2.5 mm2
Installation Conditions Ambient temperature in operation
Standard model: ......................................................0°C...+50°C
Model with suffix M (extended range): ...............-20°C...+65°C
Ambient temperature in storage..........................-40°C....+85°C
Electrical insulation grade......................................................... I
Voltage grade............................................................................ I
Protection grade ......................................... ...IP20 for terminals
Power Supply Supply voltage version U1: ................ 18....40Vac/dc
version U1M : ................ 20....40Vac/dc
version U2: ................ 85..265Vac/dc
version U2M : ................ 85..265Vac/dc
Consumption 5 W resp. 5 VA
Signal input matching speed/direction sensors series A5S3..
to other sources: response level on/off >7 volts/<4 volts
input impedance 100 kohms
sensor supply approx. 12 volts/max. 60 ma
speed measurement sequence 30 msec..10 sec (programmable)
Accuracy + 0.005 % of measurement + 1 in LSD
Analog output isolated and programmable .........................................0/4..20ma
resolution............................................................................12 bit
max. load..................................................................... 500 ohms
linearity error...................................................................... 0.1 %
Relay outputs 2, each SPDT
Breaking capacity voltage min 10 mv, max 250 v AC/DC
current min. 10 ua, max 2 amp AC, 1 amp DC
power rating max 100 W, 250 VA into ohmic load only.
Inductive load must be equipped with spark extinguisher
Display 5 digits LED red, with adjustable decimal point, programmable

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Application and Functions
In connection with the Speed/Direction Sensors series A5S3... the instrument provides:
Speed display, Direction signal output, Speed setpoint alarm output, Analog output proportional to the speed
Display and Operating Elements
LEDs
1 to 4
Operating Instructions
Display
In normal operation the display reads the speed in programmed unit and
decimals. LED 1 is permanently on, LED 2 is permanently off.
LED 3 indicates the excess of speed setpoint SP1(resp. reverse rotation)
LED 4 indicates reverse rotation sense of the object
In the programming phase the display indicates program step No., resp. the
corresponding parameter.
Error signal:
-E1- : unauthorized access with incorrect code No.
Display readings in operation
Response at sensor signal interrupt
In normal operation the Analog Output and the Setpoints follow the input
signal with the in step P00.03 programmed time. The Display update rate
additionally depends on step P02.01 . After a sudden interrupt of the input
pulses, the instrument reduces the measurement values following an auto-
matic step-down sequence. This starts as fast as the most recent measuring
sequence before interrupt, but then decreases slower and slower (reciprocal)
until it meets the programmed low end.
Response at sensor signal inter-
rupt
Programming procedure
To enter the programming phase, press both and keys simultaneously.
Select program group or step No. by keys (for next), (for previous).
Switch between group and step select by key .
Enter parameter by key .
Select digit by key .
Adjust figure by key (to increase), or (to decrease).
Acknowledge by key .
Return to operation by key .
Summary of parameters on next page, and detailed information in
section “Pr
o
gramming”.
Short form programming
instructions
1:
2 :
3 : SP 1
4 : SP 2
1
2
3
4
P
E
INDUSTRIE-ELEKTRONIK

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Summary of programming steps and their initial parameters as set on delivery
comments
program- on data set on delivery *)
Step No. page parameter function (initial data)
P00.00 6 access code request 0000
.01 6 new code figure 0000
.02 6 lock status (1= unlocked, 0=locked) 1 = unlocked
.03 6 minimum measuring time (see table) 3 = 0.4s
P01.00 7 scaling decimals of input signal frequency 0 = none
.01 7 value of nominal input frequency (Hz) 00100
.02 7 decimals of corresponding speed 0 = none
.03 7 corresponding speed (unit as desired) 00100
.04 7 low end of speed range 00001
P02.00 8 LSDs on zero 0 = none
.01 8 Display updating sequence 0.3 (sec)
.02 8 Direction output assigned to no-power condition (0 = forw., 1 = rev.) 1 = reverse
.03 8 minimum no of reverse pulses to release reverse alarm 05
.04 8 time period for reset of reverse pulse counter (xxx seconds) 010 sec
.05 8 forced direction at zero speed (0 = no, 1 = forw, 2 = rev) 0 = no
.06 8 reverse alarm latched until reset (0 = no, 1= yes) 0 = no
P03.00 9 analog output high end speed value 10000
.01 9 low end speed value 00000
.02 9 zero level (0 = dead zero, 1 = live zero) 0
.03 9 1 = fix value
P04.00 9 setpoint (SP1) in unit as programmed for display 01000
.01 9 hysteresis bandwidth (XX % of SP1) 05 (%)
.02 9 hysteresis location (0=above, 1=below, 2=symm) 1 = below SP
.03 10 alarm output assigned to "no-power" (see table) 0 = < SP
.04 10 alarm output assigned to starter phase 0 = < SP
.05 10 time elapse of starter phase (XXX sec) 000 (sec)
.06 10 function of output SP1(0 = setpoint SP1, 1 = reverse alarm SP2 0 = setpoint
P05.00 10 not relevant 0
.01 10 not relevant 001
*) unless stated otherwise in extra sheet.

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Installation
Safety Notes
This instrument has been designed and inspected according to stand-
ards DIN 57 411 / VDE 0411Sect 1, and IEC 348. Observe these
instructions and wiring diagrams carefully, to ensure this protection.
The installation must only be done by adequately qualified personnel.
General Instructions
Specifically, connect the ground terminal of the instrument to a safe
ground potential.
Do not open the instrument. Connections and all programming are
done from outside. When removing it from its enclosure however,
from whatever reason, make sure that power is switched off.
The instrument may be installed in any position, but not in the imme-
diate neighborhood of interfering sources.
Signal leads must be carefully shielded, and should not be run in
bundles with power or relay control leads.
The ground terminal (PE) is internally separated from common zero,
but tied by a 100 k resistor to it.
EMI
The unit complies with all relevant regulations, as determined by the
Policy of the European Committee for Electrotechnical Standardiza-
tion (CENELEC), for the Electromagnetic Compatibility
(89/336/EWG). Testing and inspection has been performed according
to Standards DIN-EN 50081-2 and DIN-EN 50082-2 with status No-
vember 1994. Thereby, the product meets all requirements to be
marked by the CE sign.
Strict observance of these instruction during installation and use is an
indispensable precondition hereto. Specifically to be observed:
Terminals must be kept off all undue access;
power supply and all input and output leads must be protected against
voltage interference, higher than specified operation data, and they
must be protected against electrostatic discharge.
General information and instruc-
tions to installation and wiring.
See last pages for specific wiring
diagrams and dimension sheet.

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Programming
Program Structure
A program step No. is assigned to each parameter.
The entire steps are divided into program groups, to facilitate the ad-
dressing. Therefore, the address appears as PXX.xx , where XX is the
group No., and xx the No. of the specific step in this group.
Programming Procedure
To enter the programming phase, keep key depressed when touching
key . The display switches to P00.00, indicating the first program step.
The group No. blinks, indicating that it may be increased or decreased,
using or .
Once in the desired group, touch , to switch to step No selection. In-
crease or decrease the same way. Return to group selection by again.
When in the desired step, touch . The display now reads the actual
parameter of this step. It may be varied, if data access is authorized, or
access key unlocked. Programming a new parameter is done digit by
digit. The digit ready to receive a new number blinks in display. Select a
higher value by key , or a lower one by key . Move to the next digit
at left (if necessary) by key , and proceed accordingly. With the entire
parameter ready prepared, touch again. Not before then it will become
valid.
touched instead leaves the parameter at its previous value.
Leave the programming phase by again touching . The display returns
to process readings.
Programmable Parameters
Group P00.xx
Data Access and Minimum Measuring Period
Key figure to access
Programming access to all parameters can be locked by a password num-
ber. If not properly served, the parameters may be called to display but
not varied. If not properly served, the display reads -E1-,and any pro-
gramming in a later program step will be rejected.
Note:
If the knowledge of the password number went lost it may be recalled to
display by a procedure, as described in a separate sheet K0-095 (not
included into these instructions). The code figure than appears by 4 dig-
its, headed by a _ sign.
In a subsequent program step, a new code may be established, substitut-
ing the one previously valid.
The key function may be disengaged by a next program step. With au-
thorized access, set parameter to 1 in step No .02, to generally unlock the
key. This may prove practical during the installation phase to facilitate
the adjustments. Once installed, the key function should be re- activated,
by programming parameter 0 in this step.
Program steps grouping
PXX.xx
group step
programming procedure
Step P00.00
Code figure to access
Step P00.01
new code figure
Step P00.02
unlock access key

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Minimum Measuring Period
All rate measurements are based on a time interval measurement over a
(variable) number of input signal pulses. A programmable minimum
measuring period thus will be maintained, automatically including more
input pulses into every measurement with increasing input frequency.
This establishes an averaging over the programmed period of time, which
helps to stabilize the measurements, specifically with fluctuating varia-
bles. As a standard, a minimum time of 0.4 sec is recommended. A
shorter period should only be selected to trace a fast variation (by the
analog signal or alarm). A longer period however reduces the maximum
allowable input frequency, as listed below.
The parameter of P00.03 defines the minimum measuring period:of time,
with a number of steps available:
parameter minimum time max input frequency
0 = 0.03 s 100 kHz
1 = 0.07 s 100 kHz
2 = 0.1 s 100 kHz
3 = 0.4 s 100 kHz
4 = 0.8 s 75 kHz
5 = 2.0 s 30 kHz
6 = 5.0 s 12 kHz
7 = 10.0 s 6 kHz
Note:
The updating sequence for the display will be defined in a separate pro-
gram step (P02.01).
Step P00.03
minimum measuring time
Group P01.xx
Measurement Configuration
Input Scaling
Scaling defines the relation between the input signal frequency (in terms
of Hz), and the corresponding display (in the unit term and decimal
position as required by the application). Both values are free programma-
ble by their decimals and numerical amount. Of course, they must refer to
the same operation level. This reference point is recommended at the
high end of the intended operation range, but can be surpassed in the
later operation without error.
Example:
A signal frequency of 13250 Hz corresponds to a speed of 5000 RPM.
Program as follows: in step P01.00 parameter 0
in step P01.01 parameter 13250
in step P01.02 parameter 0
in step P01.03 parameter 5000
General Note to the resolution:
Do not use too many decimals! If there are more decimals than justified
by the operational fluctuation of the variable, and the transmitter resolu-
tion, the minor digits in display will fluctuate accordingly.
Note:
The parameters as set on delivery, apply to 60 pulses per revolution.
Step P01.00
decimals for input frequency
Step P01.01
signal frequency at reference
Step P01.02
decimals for display
Step P01.03
speed value at reference

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Low end level
The parameter of this step defines the low end of active measurement, by
the same terms as selected for the speed display in the previous steps
P01.02 and .03.
When the speed is below this level – and this is the most important func-
tion of this step – the direction output can be forced into a preselected
sense, either forward or reverse or not changed (defined by step P02.03).
The direction sensor by nature detects the sense of rotation and maintains
its last state when the motion comes to stop (which might be an arbitrary
condition). This function step however allows to assign, for instance, a
forward signal to zero speed, thereby giving the “reverse” output a true
reverse run meaning.
When the speed is below this level, the measurement will be set to zero,
in display, analog output, and alarm condition.,
Step P01.04
Low end definiton
Group P02.xx
Display Performance and Direction Signal
Zeroing lesser significant digits
To eliminate a fluctuation in the last digit(s), as caused by fluctuations in
the variable or signal source, these digits can be kept at zero reading. Set
the number of those as the parameter of this step.
Note: If the paramter is set to 5, the display of the speed value will be
totally blanked.
Display updating sequence
Independent from the measuring period as programmed in step P00.03,
the display may have its own up-dating, programmable in steps of 0.1
seconds, up to 9.9 sec. Set the parameter to the desired time sequence.
A recommended value is 0.3 sec.
Step P02.00
number of LSDs to be kept
at zero
Step P02.01
display up-date sequence
Direction Output assigned to “No-Power” condition
The wiring diagram shows the direction output relay in its deenergized
position. To consider safety or other aspects of the application, this posi-
tion may either be assigned to “forward” or to “reverse” signal by:
Parameter 0 = forward, parameter 1 = reverse
Step P02.02
“no power” direction output
Minimum number of reverse pulses to release reverse alarm
Reverse alarm is released, if during a given time period (refer to P02.04) a
subsequent number reverse pulses have been counted. The amount of
pulses is adjustable from 01 to 99 pulses.
Step P02.03
minimum number of reverse pulses
Time period for reset of reverse pulse counter
A slow reverse motion could trigger an inadvertent reverse alarm. To
prevent this, the reverse pulse counter is periodically resetted after an
adjustable time period (001 to 999 seconds).
Step P02.04
time period for reset of reverse
pulse counter
Direction signal at low speed
When the speed is below the threshold set by program step P01.04, the
direction output can be set to a signal position determined by the parame-
ter: 0 = no change, 1 = forward, 2 = reverse.
Note: Settings 1 or 2 override the direction signal prevailing in the
sensor ou
t
put under this condition.
Step P02.05
direction signal at “low speed”

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Reverse alarm latched/not latched
A reverse alarm can be latched. It must be then resetted by control input
S2. Parameter 0 = alarm not latched, 1 = alarm is latched.
Step P02.06
reverse alarm latched/not latched
Program Group P03.xx
Analog output
High and low end of analog output span
High and low end of the analog output will be assigned to speed val-
ues by two program steps:
P03.00 defines the high end, P03.01 defines the low end of the analog
output. Both limits are set by the same terms as already defined for the
display.
Note:
This allows the low end to be set as high as 90 % of the high end,
resulting in a 10 times spreading (enhancement) of the converted
band. Further enhancement is not recommended.
Step P03.00
high end of analog output
Step P03.01
Low end of analog output
Analog output zero level
The parameter of step P03.02 defines:
0: without live zero
1: with live zero
Step P03.02
analog output zero level
Step P03.02
fix value 1, do not change
Program Range P04.xx
Defining the Speed Setpoint Alarm SP1
Alarm Setpoint
The setpoint SP1 is programmed by the same terms as selected for
the display of the speed.
Step P04.00
setpoint SP1
Alarm Hysteresis
The hysteresis is the margin between condition "excess" (>) and "no
excess" (<), defined by its bandwidth and its position in reference to
the setpoint. The hysteresis bandwidth is set as a percentage of the
setpoint.
The hysteresis band may be placed above setpoint, below setpoint, or
symmetrically around the setpoint.
"Above" means, the alarm goes to excess state (>) when the speed
exceeds the setpoint plus tolerance bandwidth, and it returns to no-
excess (<), when the variable drops below setpoint.
Set parameter 0 for this performance.
"Below" means, the alarm goes to excess (>) when the variable ex-
ceeds the setpoint, and it cancels to no-excess (<), when the variable
drops below setpoint minus tolerance.
Set parameter to 1 for this performance.
In "symmetrical" mode, the alarm goes to > when the variable ex-
ceeds the setpoint by half the tolerance band, and it cancels to < at half
the tolerance below setpoint.
Set parameter to 2 for this performance.
No-Power condition of the setpoint alarm
Without power supply to the unit, the alarm relay is de-energized. To
consider safety aspects of the application, this No
-
Power condition
Step P04.01
Alarm hysteresis bandwidth
Step P04.02
Alarm hysteresis position
0 = above setpoint
1 = below setpoint
2 = around setpoint
Step P04.03:
Alarm output at “no-power”

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can be assigned to either alarm > or < condition, by a corresponding
parameter selection in this step:
0 = < setpoint
1 = > setpoint
Starter condition of alarms
A control signal to the Starter input (see diagram) throws the alarm
output to a programmable condition for an adjustable period of time.
This may be required for the starting period of a machine, specifically
if monitored for low speed alarm.
Parameter 0 sets output to > setpoint during starter phase,
parameter 1 sets output to < setpoint during starter phase,
Step P04.04
Alarm output during starter phase
Starter time elapse
The starter time elapse is adjusted in program step P04.05 with range
000...999 sec.
Step P04.05
starter time period
Relay output SP1 assigned to setpoint SP1 or to reverse alarm SP2
The relay SP1 can be assigned either to the setpoint SP1 or to the
reverse alarm SP2. If assigned to SP2, relay SP1 has identical function
as relay SP2.
Assignment is adjusted in step P04.06:
Parameter 0 = relay SP1 assigned to setpoint SP1
Parameter 1 = relay SP1 assigned to reverse alarm SP2
Step P04.06
assignment of relay output SP2
Program Range P05
Not relevant
Initial parameters
The unit comes programmed to initial parameters, as listed on page 4.
In course of the installation however, the specific adjustment to the
application conditions is indispensable.
initial parameters

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Function diagram and terminal nos.
Terminal Nos
Measurement
and
signal
processing
D/A-converter
and
output stage
C124
D124
E124
C10
C9
C124
19
18
D124
-
+ Analog output
0/4..20mamps
Contacts shown for de-energized relays
capacity maximal 250V/2A/100W use spark extinguisher with inductive
loads!
18b
18z
E124
B3 24 12b
power-
supply
U1: 18....40V uc
U2: 85..265V uc
observe type label
S1 : high = starter signal
Display
and
keys
reference
control inputs
high = level
+10..+24volts vs
ref
or contact closure
vs "sensor supply
Input
section and
sensor
supply Sensor supply
100 k
A2
A1
A3
1
2
38
screen (not connected to sensor
housing)
PE
dc ac
+ L1
-
N
32b
32z
8b
C2
C3
C1
5
4
3
relay SP1
setpoint alarm
or
reverse alarm
20b
22b
24b
C5
C6
C4
8
7
6
reverse alarm
SP2
26b
28b
30b
+12V / max. 60 mA
A5 32 10z
B2 26 10b
A10 20 24z
B1 25 12z Direction signal
S2 : high =reset of reverse
alarm
A10 31 8z
0V Common ref.
A12 37 2b
Frequency signal
= internal zero, isolated
from power supply
A
B
C
S
sensor
A5S3...
D
V / R
Marked cable ends of BRAUN
cables
4
2
1
3
connector pins

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100
75
104
35
110
104
Dimensions
Revision notes
11.2001
Changes versus edition of 4.1999
Operating temperature range for version M extended to –20°C to +65°C.
Supply voltage for version U1M: 20...40Vac/dc
6.2009 (for serial nos exceeding 211500)
Voltage output is obsolete.
Plug-in terminal blocks instead of fixed terminal blocks.
28.04.2020
English and German version harmonized. No technical change.