M-system M3LPA2 User manual

M3LPA2
P. 1 / 10EM-2657 Rev.3
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
FREQUENCY TRANSMITTER
(eld- and PC-congurable) MODEL M3LPA2
INSTRUCTION MANUAL
BEFORE USE ....
Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.
■PACKAGE INCLUDES:
Signal conditioner......................................................... (1)
I/O range and tag name label sheet ............................ (1)
■MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■INSTRUCTION MANUAL
This manual describes necessary points of caution when
you use this product, including installation, connection and
basic maintenance procedures.
The M3LPA2 with Option /A is programmable using the PC
configurator software. For detailed information on the PC
configuration, refer to the M3LPACFG instruction manual.
The M3LPACFG PC Configurator Software is downloadable
at M-System’s web site: http://www.m-system.co.jp.
POINTS OF CAUTION
■CONFORMITY WITH UL
•ThisequipmentissuitableforuseinaPollutionDegree2
environment.
•Thisequipmentistobeusedwiththemaximumoperat-
ingvoltage30Vrmsand42.4Vpeakor60VDC.
•Theequipmentmustbemountedinsideasuitablereen-
closure.
•Operatingtemperature:-25to+55°C(-13to+131°F)
■CONFORMITY WITH EC DIRECTIVES
•Functional insulation is maintained between the signal
input and output.
•Altitudeupto2000meters
•Theequipmentmustbemountedinsideapanel.
•Insertnoiseltersforthepowersourceconnectedtothe
unit.Densei-LambdaModelMBS-1220-22orequivalent
is recommended.
•Theactualinstallationenvironmentssuchaspanelcon-
figurations, connected devices, connected wires, may af-
fect the protection level of this unit when it is integrated
in a panel system. The user may have to review the CE
requirements in regard to the whole system and employ
additional protective measures to ensure the CE conform-
ity.
■POWER INPUT RATING & OPERATIONAL RANGE
Locate the power input rating marked on the product and
confirm its operational range as indicated below:
100–240VACrating:85–264V,47–66Hz,approx.3–5VA
 10–32VDCrating:9–36V,approx.3W
■SAFETY PRECAUTION
Before you remove the unit or mount it, turn off the power
supply and input signal for safety.
■ENVIRONMENT
•Indooruse
•Whenheavydustormetalparticlesarepresentintheair,
install the unit inside proper housing with sufficient ven-
tilation.
•Donotinstalltheunitwhereitissubjectedtocontinuous
vibration.Donotsubjecttheunittophysicalimpact.
•Environmentaltemperaturemustbewithin-25to+65°C
(-13to+149°F)withrelativehumiditywithin0to95%RH
in order to ensure adequate life span and operation.
•Besurethattheventilationslitsarenotcoveredwithca-
bles, etc.
■WIRING
•Do not install cables (power supply, input and output)
close to noise sources (relay drive cable, high frequency
line, etc.).
•Do not bind these cables together with those in which
noisesarepresent.Donotinstalltheminthesameduct.
■AND ....
The unit is designed to function as soon as power is sup-
plied, however, a warm up for 10 minutes is required for sat-
isfying complete performance described in the data sheet.

M3LPA2
P. 2 / 10EM-2657 Rev.3
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
COMPONENT IDENTIFICATION
■HOW TO OPEN THE COVER WHEN SETTING DIP SW
Holdatthetopandbottomoftheunitasshownbelowand
slide the housing cover gently to open until it hits the latch-
ing inside the unit.
■HOW TO SEPARATE THE EURO TYPE CONNECTOR
TERMINAL BLOCKS
Whenyouneedtoseparatetheeurotypeconnectortermi-
nal blocks from the transmitter body for wiring, insert a mi-
nus driver between the euro type connector terminal block
and the housing body, pull up the driver and pull out the
euro type connector terminal block.
INSTALLATION
■DIN RAIL MOUNTING
SettheunitsothatitsDINrailadaptorisatthebottom.
Position the upper hook at the rear side of the unit on the
DINrailandpushinthelower.Whenremovingtheunit,
push down the DIN rail adaptor utilizing a minus screw-
driver and pull.
Body
SW Setting
Specifications
(side)
• Housing Cover Fully Opened
Caution:
Handle the cover carefully to protect internal components from damage.
DO NOT pull beyond where the housing cover is latched. The plastic
housing may be damaged.
DIN Rail
35mm wide
Spring Loaded
DIN Rail Adaptor

M3LPA2
P. 3 / 10EM-2657 Rev.3
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
TERMINAL CONNECTIONS
Connect the unit as in the diagram below or refer to the connection diagram on the side of the unit.
INPUT *1
+
–
+
–
1
3
2
6
5
4
CONFIGURATOR JACK
7
8
11
12
OUTPUT
■Open Collector
*1. Input Connection Examples
■Two-wire Current Pulse
• Built-in Excitation
■Mechanical Contact
6
5
6
5
INPUT
4
5
3
6
5
4
5
6
■Excitation Supply
EXCITATION
3
6
100W
100W
■Voltage Pulse
6
5
INPUT
■RS-422 Line Driver Pulse
1
2
INPUT
+
–
+
–
+
–
INPUT
+
–
+
–
+
–
+
–
• External DC Supply
■DC POWERED TYPE
*2. Be aware that the AC power and DC power connect to different terminals.
*2
DC POWER INPUT *1
+
–
U
V
1
3
2
6
5
4
CONFIGURATOR JACK
7
8
10
12
OUTPUT
■AC POWERED TYPE
*2
AC POWER
■WIRING INSTRUCTIONS
 •Applicablewiresize
  Solid: 0.2to2.5mm2(0.55to1.75dia.)
  Stranded: 0.2to2.5mm2
Tinning wire ends may cause contact failure
and therefore is not recommended.
  Ferruled: 0.2to1.5mm2(0.55to1.35dia.)
The following Phoenix Contact terminals are
recommended:
    AI0.25-8YE 0.2to0.25mm2
    AI0.34-8TQ 0.25to0.34mm2
    AI0.5-8WH 0.34to0.5mm2
    AI0.75-8GY 0.5to0.75mm2
    AI1.0-8RD  0.75to1.0mm2
    AI1.5-8BK  1.0to1.5mm2
 •Exposewireconductorsby8mm(0.31”).
8 mm 8 mm
4 mm dia. max. 4 mm dia. max.
Wire exposure Recommended
ferruled wire

M3LPA2
P. 4 / 10EM-2657 Rev.3
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
Whenyouprogramthetransmittermodule,twocongura-
tionmodesareavailable:FieldCongurationusingDIPSW
/ control buttons, and PC Software. (The Option B type is
for the field configuration only.)
TheinternalDIPswitchesareusedtocongureinputand
output type. Once the module is configured, precise ranges
are set up with the front control buttons using a simula-
tor connected to the input terminals and a multimeter con-
nected to the output terminals as a reference.
The calibrated input and output ranges are stored in the in-
ternalmemory.ThemodulereadstheDIP-switch-calibrat-
ed configuration only once after the power supply is turned
on. Set the switches with the power supply removed.
■DIP SW CONFIGURATION MODE
TurntheSW3-8OFFtoenabletheDIPSW(FieldCongu-
ration) mode as shown in Table 1.
See Table 3 through 10 to configure the input and Table 11
for the output.
■PC CONFIGURATION MODE
TurntheSW3-8ONtoenablethePCCongurationmode
as shown in Table 1. All programmable features can be set
uponaPC regardlessofotherDIP SWsettingexceptfor
thefollowing:theoutputtypemustbeselectedwiththeDIP
SW1-1throughSW1-4(SeeTable12),andthepulsesensing
typeandnoiseltermustbeselectedwiththeDIPSW4-1
throughSW4-3(SeeTables9and10).
For detailed information on the PC configuration, refer to
the M3LPACFG instruction manual.
EXTERNAL & INTERNAL VIEWS
CONFIGURATION MODE & DIP SW SETTINGS
Configuration DIP SW
10 11 12
789
456
123
Configurator Jack
DOWN Button
UP Button
MODE Button
LED3 (LD3)
LED2 (LD2)
LED1 (LD1)
8
SW3
SW2
SW1
7654321
ON
OFF
ON
OFF
4321
ON
OFF
4321
SW4
■FRONT VIEW ■ SIDE VIEW
■CONFIGURATION MODE (SW3) Table 1
MODE SW3-8
DIPSW OFF Configuration mode can be
PC ON
ConrmedwiththefrontLED.
■FRONT CONTROL BUTTON LOCK (SW3) Table 2
LOCK SW3-1
PC Configuration is not disabled
Unlock OFF
when the front control button
Lock ON
function is locked.
■INPUT TYPE (SW2) Table 3
INPUT SW2-2 SW2-1
Open collector OFF OFF
Mechanical contact
Voltage pulse ON OFF
Two-wire current pulse OFF ON
RS-422linedriverpulse ON ON
■FREQUENCY RANGE (SW2) Table 4
FREQUENCY SW2-5 SW2-4 SW2-3
0–10Hz ON OFF OFF
0–100Hz OFF ON OFF
0–1kHz ON ON OFF
0–10kHz OFF OFF ON 
0–200kHz ON OFF ON
■PULSE AMPLITUDE (SW2) Table 5
AMPLITUDE
MAXIMUM VOLTAGE SW2-8 SW2-7 SW2-6
50–100Vp-p 100V*1OFF OFF OFF
25–50Vp-p 50V*2ON OFF OFF
10–25Vp-p 25V OFF ON OFF
5–10Vp-p 10V ON ON OFF
1–5Vp-p 5V OFF OFF ON
0.5–1Vp-p 1V ON OFF ON
0.1–0.5Vp-p 0.5V OFF ON ON
*1.Max.30Vrms,42.4Vpeakor60VDCforULapproval
*2.Max.30Vrms,42.4Vpeakor50VDCforULapproval
■CUTOUT (SW3) Table 6
SW3-7isusableonlywiththeM3LPA2-x/B.
CUTOUT SW3-7
With(0.1%xed) ON 
Without OFF

M3LPA2
P. 5 / 10EM-2657 Rev.3
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
■POLARITY (SW3) Table 7
POLARITY SW3-6
Bipolor OFF
Unipolor ON
WhenBipolorisselected,theinternalthresholdlevelis
fixed to 0V.
■EXCITATION SUPPLY (SW3) Table 8
EXCITATION SW3-5 SW3-4
4V ON OFF
8V OFF ON
12V ON ON
■PULSE SENSING (SW4) *2Table 9
SENSING SW4-3
Capacitorcoupled*3OFF
DCcoupled*4ON
*2.DIPSWsettingisrequiredforPCcongurationtype.
*3.Frequencyrangemustbe0–100Hzorhigher.0– 1
kHzorhigherforsinusoidalwaveforminput.Frequencies
lowerthan10Hzmaybeoutofaccuracyconformance.
*4.Forsinusoidalwaveforminputwiththepulseampli-
tude smaller than 1V p-p, the frequency range must be 0
–1kHzorhigher,orextendthesamplingtimebyusing
the PC configurator software.
■NOISE FILTER (SW4) *2Table 10
FILTER SW4-2 SW4-1
Large ON OFF
Small OFF ON
Without OFF OFF
Timeconstantissetto50msec.withthe‘large’noiselter
settingandto10msec.withthe‘small’noiseltersetting.
■OUTPUT TYPE (SW3 & 1) Table 11
OUTPUT
SW3-3 SW3-2 SW1-4 SW1-3 SW1-2 SW1-1
0 – 20mA OFF ON OFF ON OFF OFF
-2.5–+2.5V ON OFF ON OFF OFF ON
-10–+10V OFF OFF ON OFF ON OFF
■OUTPUT TYPE / PC CONFIG (SW1) *2Table 12
OUTPUT SW1-4 SW1-3 SW1-2 SW1-1
0 – 20mA OFF ON OFF OFF
-2.5–+2.5V ON OFF OFF ON
-10–+10V ON OFF ON OFF
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2)DIPSWsetting:Checkthattheswitchesaresettoap-
propriate positions.
3) Power input voltage: Check voltage across the terminal
10–12(AC)or11–12(DC)withamultimeter.
4) Input:Checkthattheinputsignaliswithin0–100%of
full-scale.
5) Output:  Check that the load resistance meets the de-
scribed specifications.
MAINTENANCE
Regularcalibrationprocedureisexplainedbelow:
■CALIBRATION
Warmuptheunitforatleast10minutes.Apply0%,25%,
50%, 75% and 100% input signal.  Check that the output
signal for the respective input signal remains within accu-
racydescribedinthedatasheet.Whentheoutputisoutof
tolerance, recalibrate the unit using the PC Configurator
Software (model: M3LPACFG).

M3LPA2
P. 6 / 10EM-2657 Rev.3
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
I/O RANGING & FINE ADJUSTMENTS
After the DIP SW setting is complete, set up the precise
input and output range using the front control buttons. Be
sure that the front control button function is enabled with
theDIPswitchsetting.
The front LEDs’ colors and ashing patterns help you to
easily identify the transmitter’s status and confirm the set-
up actions in each step of Calibration Modes. Please read
the following explanations referring to “Calibration Flow
Chart”inPage6.
■PREPARATION (e.g. M3LPA2-R4/A, DC powered type)
1) Mount the DIP-SW-congured M3LPA2 on to a DIN
rail.
2) Connect the M3LPA2 to a simulator and a multimeter
andtoaDCpowersourceasshownbelow.
3) Turn the power supply on and wait for 10 minutes.
■INPUT & OUTPUT RANGING
[Example] Setting input to 10 – 80 Hz (DIP SW range 0
–100Hz),outputto1–5VDC(DIPSWrange±10V).
1) Run Mode: Conrm that the green LED is blinking
(modelM3LPA2-x/A)orthegreenLEDturnson(model
M3LPA2-x/B).
2) Threshold Calibration Mode: Press MODE button for
longerthan5secondsuntiltheLD1redlightisON.
3) Threshold Setting: Apply the full-scale input level (e.g.
100Hz)fromthesimulatorandpushUPorDOWNbut-
tons until the output meter shows the full-scale output
level(e.g.+10V).
4) Input Calibration Mode: Push MODE button and con-
rmthattheLD1redlightisONandtheLD2redlight
is blinking.
5) 0% Input Ranging: Apply the desired minimum input
level (e.g. 10 Hz) from the simulator and push DOWN
buttonuntiltheLD1ashesforapprox.5sec.andthen
turnsOFF.Whenyoureleasethebutton,theLD1isre-
turned to ON.
 TheashingLD1meansthatthevalueisstoredinthe
memory.  If LED’s ashing frequency does not change,
the entered level may be inappropriate: too small a span,
or out of usable range (same for all steps).
 Forsetting0%inputto0Hz,applycertainfrequencybe-
low1Hz.
6) 100%InputRanging:Applythedesiredmaximuminput
level(e.g.80Hz)fromthesimulatorandpushUPbutton
untiltheLD1 ashesfor approx.5sec.and thenturns
OFF.Whenyoureleasethebutton,theLD1isreturned
to ON.
7) Output Conguration Mode: Push MODE button and
conrmthat theLD1 redlight isON andthe LD3red
lightinsteadofLD2isblinking.
5
6
7
8
11
12
M3LPA2 Multimeter
Simulator +
–
Power Source
+–
+
–
Example with voltage pulse.
See Connection Diagram
for other input types.
Example with
DC power.
8) 0%OutputRanging:Increaseordecreasethesimulated
input until the meter shows the desired minimum out-
put level (e.g. 1V).  Push DOWN button until the LD1
ashesforapprox.5sec.andthenturnsOFF.Whenyou
releasethebutton,theLD1isreturnedtoON.
9) 100% Output Ranging: Increase or decrease the simu-
lated input until the meter shows the desired maximum
output level (e.g. 5V).  Push UP button until the LD1
ashesforapprox.5sec.andthenturnsOFF.Whenyou
releasethebutton,theLD1isreturnedtoON.
10 )RunMode:Programmingcomplete,pushMODEbutton
andconrmthatonlytheLD1greenlightisblinking.

M3LPA2
P. 7 / 10EM-2657 Rev.3
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
POWER ON
Amber LED
Green LED
Control
Buttons
Red LED
OFF
ON
Blink
RUN MODE
LD2
LD3
A
G
RUN MODE
LD2
LD3
G
R
LD1
LD2
LD3
LD1
LD2
LD3
0% INPUT
CONFIGURED
100% INPUT
CONFIGURED
INPUT
CALIBRATION
MODE
LD1
OUTPUT
CALIBRATION
MODE
LD2
LD3
LD1
LD2
LD3
0% OUTPUT
CONFIGURED
100% OUTPUT
CONFIGURED
G
G
R
R
R R
G
R
R
G
Fine Adjustments ? I/O Ranging ?
PUSH MODE 1 – 2 s PRESS & HOLD MODE > 5s
PUSH MODE
PUSH MODE PUSH MODE
PUSH MODE
PUSH DOWN
PUSH UP
DOWN
UP
MODE
PUSH DOWN
PUSH UP
When you set 0% or 100% input/output ranges,
keep pressing UP or DOWN button until the
LD1 flashes for approx. 5 seconds and turns off,
which indicates the setup is complete.
When you release the button, the LD1 is returned
to ON.
If the LED does not change, the entered level may
be inappropriate: e.g. out of usable range.
*For the model M3LPA2-x/A, the green LED is blinking.
For the model M3LPA2-x/B, the green LED turns on.
In order to change the threshold, apply simulated
100% input signal and push UP (increase) or DOWN
(decrease) buttons until the output meter shows
100% output signal as in the example below.
When polarity is set to Bipolor, because the internal
threshold level is fixed to 0V, the threshold calibration
mode does not function.
[Example]
Input range: 0 to 100 Hz
Output range: -10 to +10V
Apply 100 Hz and the output meters must show +10V.
Once the transmitter
enters the fine zero
calibration mode,
the output goes to
preadjusted 0%
value regardless
of the present input
signal.
Once the transmitter
enters the fine span
calibration mode,
the output goes to
preadjusted 100%
value regardless
of the present input
signal.
FINE ZERO
CALIBRATION MODE
UP or DOWN
LD1
LD2
LD3
R
PUSH MODE
THRESHOLD
CALIBRATION MODE
UP or DOWN
FINE SPAN
CALIBRATION MODE
UP or DOWN
Apply simulated 0% input signal.
Apply simulated 100% input signal.
Adjust simulated input until the output meter
shows desired 0% output.
Adjust simulated input until the output meter
shows desired 100% output.
LD1*
LD1*
■CALIBRATION FLOW CHART

M3LPA2
P. 8 / 10EM-2657 Rev.3
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
■I/O RANGE LABEL
Blank I/O range labels are included in the product pack-
age.Writeintheconguredrangesandputthelabelon
the side as shown below.
INPUT
OUTPUT
I/O Range Label (included in the product package)
■OUTPUT TYPE & RANGE Table 14
OUTPUT TYPE MINIMUM SPAN MAXIMUM RANGE CONFORMANCE RANGE
DCCurrent 1mA 0to20mA 0to24mA 
DCVoltage,NarrowSpans 250mV -2.5to+2.5V -3to+3V 
DCVoltage,WideSpans 1V -10to+10V -11.5to+11.5V
■INPUT TYPE & RANGE Table 13
INPUT TYPE MINIMUM AMPLITUDE MAXIMUM RANGE MAXIMUM AMPLITUDE
OpenCollector 4V 0–200kHz 12V
MechanicalContact 4V 0–10Hz 12V 
VoltagePulse 0.1V 0–200kHz 100V
Two-wireCurrentPulse 4mA 0–200kHz 25mA 
RS-422LineDriverPulse –– 0–200kHz ––
■ZERO & SPAN ADJUSTMENTS
Afterthetransmitterisinstalledandoperational,nezero
and span tuning can be performed as explained below. Both
zeroandspanareadjustablewithin±15%.
1) Run Mode: Conrm that the green LED is blinking
(modelM3LPA2-x/A)orthegreenLEDturnson(model
M3LPA2-x/B).
2) Fine Zero Calibration Mode: Press MODE button for 1
or2secondsuntiltheLD1redlightisONandtheLD2
green light is blinking.
3) UseUP(increase)andDOWN(decrease)buttonstoad-
justtheoutputto0%.
4) Fine Span Calibration Mode: Push MODE button and
conrmthattheLD1redlightisONandtheLD3green
lightinsteadofLD2isblinking.
5) UseUP(increase)andDOWN(decrease)buttonstoad-
justtheoutputto100%.
6) RunMode:PushMODEbuttonandconrmthatonlythe
LD1greenlightisblinking.
Note 1: Calibration steps can be skipped when not needed
byrepeatingpushingMODEbuttons.
Note 2: There is no limitation of entering values for multi-
ple times within one step of Calibration Mode. Signal level
isstoredeachtimetherespectiveUPorDOWNbuttonis
pressed.However,fortheinputranging,endalwayswith
100%(UP).
Note3:Once thetransmitter enters thene zero or span
calibrationmode,theoutputgoestopreadjusted0%or100%
value respectively regardless of the present input signal.

M3LPA2
P. 9 / 10EM-2657 Rev.3
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
ADJUSTING DETECTING LEVEL BY USING PC CONFIGURATOR SOFTWARE
PC Configurator Software (model: M3LPACFG) can be used to adjust the detecting level with Option /A type. Appropriate
detectinglevelisdeterminedaccordingtotheowchartbelow(voltagepulseor2-wirecurrentpulseinputonly).
START
Confirm the Sensitivity Scale in Table 14
below.
Assign the value in the following equation.
Detecting Level (V)*1=
DC Offset (V)*2¥ Sensitivity Scale
Set DIP SW to the DC coupling and adjust
the detecting level to the value calculated
above.
Set to 4V when the calculation result is
higher than 4V, set to -2V when it is lower
than -2V.
Set DIP SW to the capacitor
coupling and adjust the
detecting level to 0V.
DC coupled input sensing? No
Yes
*1.
*2.
Rounded off to one decimal place.
Divide a current input (mA) by 10 and convert it into voltage (V).
e.g. Offset = 10mA --> 10mA x 1/10 = 1V
Table 15
PULSE AMPLITUDE SENSITIVITY SCALE
 50–100Vp-p 1/20 
 25–50Vp-p 1/10 
 10–25Vp-p 1/5 
 5–10Vp-p 1/2
 1–5Vp-p 1 
 0.5–1Vp-p 1 
 0.1–0.5Vp-p 1
A specific sensitivity scale is applied according to the pulse
amplitudebysettinguptheDIPswitchandPCCongura-
tion Software. The scaled input voltage is then compared to
thedetectinglevelat-2.00through+4.00V.
WithDCcoupling,thescaledmaximuminputvoltagelevel
voltage must be higher than and the scaled minimum input
voltage level must be lower than the detecting level so that
the pulse state is accurately detected.
• Setting Examples
Voltage Input (DC Offset = Pulse Amplitude / 2)
PULSE AMPLITUDE DETECTING
AMPLITUDE (Vp-p) RANGE (Vp-p) LEVEL (V)
 100 50–100 2.5 
 50 25–50 2.5 
 30 25–50 1.5
 25 10–25 2.5 
 15 10–25 1.5 
 10 5–10 2.5
 7.5 5–10 1.9 
 5 1–5 2.5 
 3.5 1–5 1.8
 2 1–5 1 
 1 0.5–1 0.5 
 0.5 0.1–0.5 0.3
Current Input (DC Offset = Pulse Amplitude / 2)
PULSE AMPLITUDE DETECTING
AMPLITUDE (mAp-p) RANGE (Vp-p) LEVEL (V)
16(1.6Vp-p) 1–5 0.8 
25(2.5Vp-p) 1–5 1.3
HOW TO RESET TO DEFAULT STATUS
1)SetSW3-4andSW3-5toOFFposition.
2)TurnonthepowersupplytothetransmitterwhilepressingMODEbutton.
3)WaituntilgreenlightturnsonattheLD1,LD2andLD3.
4)ResetSW3-4andSW3-5tothepreviousposition.Turnoffandonthepowersupply.

M3LPA2
P. 10 / 10EM-2657 Rev.3
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
LD1
LD2
LD3
A
A
A
LD1
LD2
LD3
G
LD1
LD2
LD3
G
LD1
LD2
LD3
LD1
LD2
LD3
A
G
LD3
A
LD1
LD2
LD3
R
R
R
G
NORMAL OPERATION (RUN) MODE
ERROR MODE
System Error
Indicates the CPU’s communication error.
DIP SW Error
DIP SW configuration is inappropriate.
Check the DIP SW setting referring to Tables 2 – 11.
PC Configuration RUN Mode (Option A)
The transmitter is configured via PC and
is in normal operating conditions.
DIP SW Configuration RUN Mode
The transmitter is configured via DIP SW and
is in normal operating conditions.
Output Saturated in PC Configuration Mode
(Option A)
The output is saturated.
(approximately below -15% or above +115%)
Output Saturated in DIP SW Configuration Mode
The output is saturated.
(approximately below -15% or above +115%)
Amber LED
Green LED
Red LED
OFF
ON
Blink
A
G
R
STATUS INDICATOR LED
CombinationsofthethreefrontLEDs(LD1,LD2,LD3)in-
dicatethetransmitter’soperatingstatusbydifferentash-
ing patterns.
Examples are shown below.
10 11 12
789
456
123
106 (4.17)
18 (.71) 110.5 (4.35)
62 (2.44)
[5 (.20)]
• When mounting, no extra space is needed between units.
DIN RAIL
35mm wide
EXTERNAL DIMENSIONS mm (inch)