Gesint DMF User manual

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DMF
FREQUENCY DIVIDER / MULTIPLIER
qOpto-isolated input with OPTO (SENSUS)
, NAMUR,
REED, NPN, PNP photoelectric sensors
, paddlewheel
flow sensors F3.00.F (FLOWX3)
q12 Vdc, 100 mA built-in sensor power-supply
qDivider selectable in a 1...9999 range (
up to 3 decimal
digits)
qDisplay visible divider preset value
qOutput signal :
n30mA@24V static NPN / PNP (opto-isolated),
nREED relais with 250mA@100V SPST contact
q2...250 ms settable output pulse time
qInformation about p
ower on, input signal, output
signal
qCasing suitable for being coupled onto a DIN 2M rail
|
=24 Vdc
=24 Vac

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1.0 PACKING LIST
The package includes:
quser's manual (this document)
qsafety precautions and notes
qapparatus
2.0 SAFETY PRECAUTIONS
Carefully read the warnings supplied with the product (see 1.0, Packing list) along with the instructions
written in this document before using the device.
The product is an electronic instrument, thus it must not be considered a machine; consequently, it is not
subject to the requirements fixed by the EC Directive relating to Machinery.
If the product is used as part of a machine, it cannot be started if the machine does not meet the Directive
requirements.
The product marking does not relieve the customer from fulfilling the obligations provided by the law
concerning the end-item.
Check the device code in advance and select the suitable power supply voltage (see par. 3.6 in this
manual).
Provide for an appropriate protection on the power circuits; we recommend using a 300mA fuse with a
medium time delay.
The apparatus is fulmination resistant (“surge” internal protection)
Before supplying power, make sure that the model corresponds to the one you are
installing (see paragraph 4.5).
3.0 GENERAL DESCRIPTION
Frequency divider / multiplier. The device is provided with:
qan opto-isolated input for OPTO (Sensus), NAMUR, REED, NPN (10...30 Vdc), PNP (10...30 Vdc),
photoelectric sensors
qbuilt-in sensor power-supply (12Vdc / 100 mA max)
qinput max frequency : static 400 Hz
reed 15 Hz
qoutput signals: static NPN/PNP (opto-isolated) 30 mA / 24V
REED relais (with SPST contact) 250 mA / 100V
q2 to 250 ms settable output pulse time
qkeypad selectable divider in a 1...9999 range with selectable resolution (no, one, two, three decimal
digits)
qindication through display DP of: power (PWR)
active input (IN)
active output (OUT)
3.1 OPERATING CYCLE
Each input pulse is counted; the Decimal Point “IN” displays that.
When reaching a whole number,an output pulse is generated; the Decimal Point “OUT” displays that. The
decimal part is stored and added up to the next pulse.
Example 1: Divider = 2
Every two input pulses the device generates an output pulse.
Example 2: Divider = 53.4
After getting the 54th pulse, the device generates an output pulse and keeps the value 0.011236
[(54/53.4) -1] stored to add it up to the next counting.

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4.0 PREPARATION FOR USE
4.1 FIRST SETTING UP
The device is designed for being mounted as a back panel.
It is necessary to prepare a DIN rail to hang the device on.
4.2 ASSEMBLY AND INSTALLATION
The equipment can be snap-fitted for mounting: hook the top (which is not provided with the black spring
hook) up onto the DIN rail and press slightly to hook up the lower part until the spring hook fits together.
(To make the operation easy pull the black tab gently by means of a screwdriver of appropriate size).
Refer to the diagrams below for connection.
Make all electrical connections with power supply off.
4.3 FRONT VIEW
1=divider display set with four 9mm-digits [1]
2= decimal point PWR to display the power supply voltage in use [2]
3= decimal point IN to display the active input [2]
4= decimal point OUT to display the active output [2]
5=SHIFT key to: access the parameter value modification
shift the digit selected during the value modification
exit the parameter value modification
6=UP key to :access the programming menu
increase the digit selected during the value modification
[1] it lights up only during programming
[2] active only when operating

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4.4 CONNECTIONS
4.5 POWER SUPPLY
Check the instrument model (see code) and select the correct power supply voltage to
prevent damages.
Model Power supply
DMF 24 Vac / 24 Vdc ± 10%
Always provide adequate protection against voltage surges to avoid irreversible damages
to the device.

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4.6 ELECTRICAL CONNECTIONS
Two 6-pole terminal blocks are provided to electrically connect the interface (see figure 2): one at the
bottom (terminals identified by numbers 1 ... 6), one at the top (terminals identified by numbers 7 ... .12).
4.6.1 POWER SUPPLY
24 Vdc : to terminals5 (24, positive) and 6 (0, negative)
24 Vac : to terminals5 (24) and 6 (0)
4.6.2 REEDOUTPUT
Terminal 4 (CR)
Terminal 3 (R1)
4.6.3 STATIC OUTPUT (NPN/PNP)
Positive: terminal 1 (OUT+)
Negative: terminal 2 (OUT-)
4.6.4 COUNT OUTPUTS
4.6.4.1 NPN INPUT
Connect terminal 11 (N/P) to terminal 12 (+12) (see figure 5)
Fast input for static sensors (max 400 Hz): positive = 12 (+12)
negative = 10 (COM)
output = 7 (IN)
4.6.4.2 PNP INPUT
Connect terminal 11 (N/P) to terminal 10 (COM) (see figure 6)
Fast input for static sensors (max 400 Hz): positive = 12 (+12)
negative = 10 (COM)
output = 7 (IN)
4.6.4.3 INPUT FROM OPTOELECTRONIC SENSOR
Connect terminal 11 (N/P) to terminal 10 (COM) (see figure7)
Input for optoelectronic sensor (max 400 Hz): positive = 12 (+12)
negative = 8 (FTC)
output = 7 (IN)
4.6.4.4 OPTO INPUT (SENSUS)
Connect terminal 11 (N/P) to terminal 12 (+12) (see figure8)
Input for NAMUR type static sensors(max 400 Hz): positive = 7 (IN)
negative = 10 (COM)

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4.6.4.5 NAMUR INPUT
Connect terminal 11 (N/P) to terminal 12 (+12) (see figure 9)
Input for NAMUR type static sensors(max 400 Hz): positive = 7 (IN)
negative = 10 (COM)
4.6.4.6 INPUT FROM MODULARIS SENSOR
Connect terminal 11 (N/P) to terminal 12 (+12) (see figure10)
Input for MODULARIS sensor (max 400 Hz): white = 7 (IN)
brown = 10 (COM)
4.6.4.7 REED INPUT
Connect terminal 11 (N/P) to terminal 12 (+12) (see figure 11)
Connect terminal 9 (FLT) to terminal 10 (COM) (see figure11)
Mechanical contact(not powered) between terminal 7 (IN) and 10 (COM)
4.6.4.8 PADDLEWHEEL FLOW SENSOR (F3.00.F -FLOWX3) INPUT
Connect terminal 11 (N/P) to terminal 12 (+12); see figure 12(cable connenction) or figure 13 (DIN
connector)
Input for paddlewheel flow sensor (max 400 Hz): white = 12 (+12)
brown = 10 (COM)
green = 7 (IN)

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4.7 FUNCTIONAL CHECK
Supply power.
The Decimal Point “PWR” should light up.
The Decimal Point “IN” displays the incoming pulses at the input.
The Decimal Point “OUT” displays the output generated pulses.
4.8 STORAGE
When storing the equipment for long times, no specific interventions are required.
5.0 OPERATING INSTRUCTIONS
The device is designed to divide pulses and to interface different types of input signals (NPN, PNP, OPTO,
reed) in a NPN, PNP, reed logic.
The division can be set for whole or fractional numbers in a 1.000 to 9999 range.
The device is suitable for transforming signals coming from a liter-counter into liters or cubic meters.
5.1 OPERATION
When operating, the display is off;
threeDPsindicate:
nPWR (power on)
nIN (active input)
nOUT (active output)

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5.1.1 CYCLE
Each input pulse is counted; the Decimal Point “IN” displays that.
When reaching a whole number an output pulse is generated; the Decimal Point “OUT” displays that. The
decimal part is stored and added up to the next pulse.
The output pulse has a variable duration (2 to 250ms) according to the value set under parameter “t”.
Example 1:
Divider 8
Every eight input pulses the device generates an output pulse
Example 2:
Divider 53.4
When reaching 54 pulses, the device generates an output pulse and keeps the value 0.011236
[(54/53.4) -1] stored to add it up to the next count.
5.1.2 POWER ON
When power is supplied, the divider starts from zero.
Any residual count won’t be memorized.
5.2 PROGRAMMING
As soon as you access the programming, the display lights up and allows you to set the parameters.
Range
ParameterLabel on
display min max Default
Decimal point dP 030
Divider diU 19999 1
Pulse duration t2250 20
5.2.1 ACCESS
Press UP to gain access.
The display will first show the label “dP” for about a second and then the previously set value.
If you press UP again, two more labels will appear in sequence:
n“diU”
n“t”
5.2.2 SETTING A PARAMETER VALUE
To set a parameter value, press the key SHIFT for 1straight second; access is confirmed when the unit
digit starts flashing.
From this moment on:
nYou can modify the flashing digit using the key UP
nYou can change the flashing digit from units to tens, hundreds or thousands using the key SHIFT (the
max selection range depends on the max settable scale).
5.2.3 EXIT THE PARAMETER VALUE SETTING
To exit (and confirm the new set value) press SHIFT for one straight second. The digit you have selected
will stop flashing.
5.2.4 DECIMAL POINT “dP” PARAMETER
n0: no DP (9999)
n1: one DP (999.9)
n2: two DPs (99.99)
n3: three DPs (9.999)

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5.2.5 “diU” DIVIDER PARAMETER
The setting range of the divider is 1 to 9999.
In this setting the decimal point selected (if any) is lit.
5.2.6 OUTPUT PULSE “t” TIME PARAMETER
The setting range is 2... 250 ms.
5.2.7 EXIT PROGRAMMING
Press UP to exit the programming, after setting parameter “t”.
In any case, if no key has been pressed for 60 seconds, the device will exit the programming
automatically.
5.3 MANUAL CONTROLS
It is possible to locally interact with the device by means of the following manual controls (see Fig.1):
FIG 1
Key Function
5SHIFT Enter the parameter value modification function
Shift the digit selected when modifying the value
Exit the parameter value modification function
6UP Access the programming menu
Increase the digit selected when modifying the value
5.4 REMOTE CONTROLS
The device is provided with the following remote controls (see paragraphs 4.4 “Connections” and 4.6
“Electrical connections”):
qDigital input (including the transmitter supply output)
qNPN/PNP static output
qREED output
5.4.1 DIGITAL INPUT
See figure2; the device is provided with anoptoisolated digital input (IN).
Impedance: 2000 ohm
Logic level 0: 0…3V
Logic level 1: 6…30 Vdc
Max admissible distance for cables : 3metres.
5.4.2 STATIC OUTPUT
The device is provided with an optoisolated static output.
Max isolation voltage: 250V.
The connection can be either NPN (see figure 3) orPNP (see figure4).
Voltage: 10... 30 Vdc; Max current: 30 mA.
Short-circuit protection through self-resetting fuse.
Max admissible distance for cables : 3metres.
5.4.3 REED OUTPUT
SPST contact.
Max voltage: 100V.
Max current: 250 mA.
The coil is optoisolated to reduce the effects of inductive returns in the control electronics.

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5.4 MAINTENANCE
There are no parts that require maintenance.
6.0 TECHNICAL SPECIFICATIONS
6.1 GENERAL FEATURES
PACKAGE
Modular casing mounted on DIN EN 50022 rail (in
accordance with DIN 43880 rules)
Width: 2 modules (36 mm)
Height: 90 mm
Depth: 68 mm
Weight: 100g
Degree of protection: IP20
Connection by means of two fixed 6-pole terminals
DIGITAL INPUT
Signals: NPN, PNP, OPTO (SENSUS), namur,
optoelectronic, solaris, paddlewheel F3.00.F (FLOWX3)
Impedance : 2000 ohm
SENSOR POWER SUPPLY
Voltage : 12 Vdc
Current: max 100 mA
AUXILIARY POWER SUPPLY
Power supply voltage 24 Vdc; 24 Vac
Max consumption (draw) 1.5 W; 1.5 VA
Tolerance: ±10%
STATIC OUTPUT
Signal: NPN, PNP
Voltage 5…30 Vdc
Current : max 30 mA
Load: resistive, inductive
Protection: 50 mA self-resetting fuse
REED OUTPUT
Signal: non-powered contact
Voltage: 10…100 Vdc/Vac
Current : max 250 mA
Resistive load
6.2 AMBIENT CONDITIONS
6.2.1 TEMPERATURE
Operating temperature: –10°…50°C
6.2.2 HUMIDITY
Relative humidity: 0…95% -non condensing
6.2.3 ELECTROMAGNETIC COMPATIBILITY
According to EC Directive 2004/108
Generic standard: immunity for industrial environmentsEN61000-6-2
Generic standard: emission for industrial environmentsEN61000-6-4
6.2.4 ELECTRICAL SAFETY
According to EC Directive 2006/95
Standard relating to instrumentation EN61010-1
6.3 STORAGE
Storage temperature : -20°… +60°C
Relative humidity: 0…95% -non condensing
Dry and clean environments are recommended.
Avoid any exposure to corrosive acid exhalations.
Do not wash the apparatus with water.
Prevent liquid entrance in the internal circuits.