Omega DMD4380, DMD4380-DC User Manual
DMD4380
LifetimeTM
DMD4380-DC
DC-DC Isolated Transmitter
M-5001/0219
Model Power
DMD4380
DMD4380-DC
Description
The DMD4380 is a field-rangeable signal isolator/transmitter/converter. It accepts a DC voltage or current input and provides an
optically isolated DC voltage or current output that is linearly related
to the input. Full 3-way isolation (input, output, power) makes this
module useful for ground loop elimination, signal conversion and
isolation, common mode signal rejection, or noise pickup reduction.
Standard on the DMD4380 is a 15 VDC loop excitation supply for the
input and a 20 VDC loop excitation supply for the output. These power
supplies can be selectively wired to power passive mA devices.
A green input LED and a red output LED vary in intensity with changes
in the process input and output signals. These provide a quick visual
picture of your process loop at all times.
An output test button provides a fixed output (independent of the
input) when held depressed. The test output level is potentiometer
adjustable from 0 to 100% of output span.
The I/O LEDS and the output test button greatly aid in saving time
during initial startup and/or troubleshooting.
DC Input Ranges
Field selectable ranges and offsets via switch settings
Voltage: 0-10 mVDC to 0-130 VDC
Bipolar voltage: ±5 mVDC to ±65 VDC
Current: 0-200 µADC to 0-50 mADC
Input offset: ±100% in 15% increments
Input Impedance (Voltage)
Voltage: 1 MΩ minimum
Current: 50 Ω typical
Voltage burden: 1 VDC at 20 mA current input
Common Mode Rejection
100 dB minimum
Input Loop Power Supply
15 VDC ±10%, regulated, 25 mADC
May be selectively wired for sinking or sourcing mA input
LoopTracker
Variable brightness LEDs indicate I/O loop level and status
DC Output Ranges
Field selectable ranges and offsets via switch settings
Voltage (10 mA max): 0-1 VDC to 0-10 VDC
Bipolar voltage: ±5 VDC or ±10 VDC
Current: 0-2 mADC to 0-20 mADC, 4-20 mADC
20 V compliance, 1000 Ω at 20 mA
Output Calibration
Multi-turn zero and span potentiometers
±15% of span adjustment range typical
Output Loop Power Supply
20 VDC nominal, regulated, 25 mADC, <10 mVRMS max. ripple
May be selectively wired for sinking or sourcing mA output
Output Test/Override
Front button sets output to test level when pressed or via external
contact closure
Potentiometer adjustable 0-100% of span
Output Ripple and Noise
Less than 10 mVRMS ripple and noise
Linearity
Better than ±0.1% of span
Ambient Temperature Range and Stability
–10°C to +60°C operating ambient
Better than ±0.02% of span per °C stability
Response Time
70 milliseconds typical
DF option: 1 millisecond typ. (output noise will exceed specifications)
Isolation
1200 VRMS minimum
Full isolation: power to input, power to output, input to output
Housing and Connectors
IP 40, requires installation in panel or enclosure
For use in Pollution Degree 2 Environment
Mount vertically to a 35 mm DIN rail
Four 4-terminal removable connectors, 14 AWG max wire size
Power
85-265 VAC, 50/60 Hz or 60-300 VDC, 2 W maximum
D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 2 W maximum
85-265 VAC, 50/60 Hz or 60-300 VDC
9-30 VDC or 10-32 VAC
Voltage Output
Switch E set to “V”
Current Sourcing Output
Switch E set to “I”
Current Sinking Output
switch E set to “I”
External Contact
for Test Function
Variable Brightness Output Indicator
Output Test Level Adjustment
Push to Test Output
Output Span Calibration
Variable Brightness Input Indicator
Output Zero Calibration
Voltage Input
Current Sinking Input
Source
Current Sourcing Input
To maintain full isolation avoid
combining power supplies in
common with input, output, or
unit power.
Cu 60/75°C
conductors
14 AWG
max.
13 Power AC or DC +
14 Earth Ground
16 Power AC or DC –
Loop
Power
Source
Loop
Power
21 3 4
21 3 4
4-20 mA
Device
+
+ –
–
– +
21 3 4
65 7 8
Omega Engineering Inc.
Test Cal.
Test
Span
Zero
DMD4380
DC to DC
Isolated Transmitter
109 11 12
– +
Voltage
Xmtr
109 11 12
–
– +
+
+ –
mA
Xmtr
109 11 12
+15V –
mA
Xmtr
1413 15 16
Voltage
Device
– +
mA
Device
– +20V
Ri
Output
LED
Input
LED
Ri
Ri
User’s Guide
Ri
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e-mail: info@omega.com
For latest product manuals:
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MADE IN
Lead
Pb
Free
WARNING: This product can expose you to chemicals including nickel, which are known to the State of California to cause
cancer or birth defects or other reproductive harm. For more
information go to www.P65Warnings.ca.gov
1 2 3 4
Output
Input
Power
5 6 7 8
9 10 11 12
13 14 15 16
Remote Test
Do not connect
anything to
unused terminals
Wire terminal torque
0.5 to 0.6 Nm or
4.4 to 5.3 in-lbs
2
DMD4380 Series DC-DC Isolated Transmitter
Range Selection
See the tables to select I/O ranges for your application. It is generally
easier to select ranges before installation. The module label lists
common ranges.
For ranges that fall between the listed ranges, use the next highest
setting and trim the output signal with the zero and span potentiometers.
Switches A and B: Input range
Switch C: Input offset
Switch D: Output range
Switch E: “V” for voltage output or “I” for current output
Note that when using a current shunt input, it measures a mV drop
across a fixed resistance, typically 50 mV, 75 mV or 100 mV. The correct input setting would be the appropriate mV range for the shunt.
Electrical Connections
WARNING! All wiring must be performed by a qualified electrician or
instrumentation engineer. Avoid shock hazards! Turn signal input,
output, and power off before connecting or disconnecting wiring,
removing, or installing module.
See diagram for wiring examples. Polarity must be observed for input
and output wiring connections. If the input and/or output do not function, check switch settings and wiring polarity.
Device Connected to Output Terminal Terminal Switch E
Voltage input
Passive mA (current) input.
Module provides loop power
mA (current) input device that
provides loop power.
Device Connected to Input Terminal Terminal
Voltage output
mA (current) output that provides loop power
Passive mA (current) output.
Module provides loop power
Output 0-1 V 0-2 V 0-4 V 1-5 V 0-5 V 0-8 V 2-10 V 0-10 V ±5 V ±10 V 0-2 mA 0-4 mA 0-8 mA 2-10 mA 0-10 mA 0-16 mA 4-20 mA 0-20 mA
Switches
Input
±10 mV
±20 mV
±25 mV
±40 mV
±50 mV
±65 mV
±80 mV
±100 mV
±125 mV
±130 mV
±160 mV
±200 mV
±250 mV
±260 mV
±325 mV
±400 mV
±500 mV
±650 mV
±800 mV
±1.25 V
±1.3 V
±1.6 V
±2.5 V
±3.25 V
±6.5 V
±10 V
±12.5 V
±13 V
±16.25 V
±20 V
±25 V
±32.5 V
±50 V
±65 V
ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE ABCDE
0330V 0338V 0331V 0336V 0339V 0332V 0337V 0333V 0334V 0335V 0330I 0338I 0331I 0336I 0339I 0332I 0337I 0333I
±5 mV
0730V 0738V 0731V 0736V 0739V 0732V 0737V 0733V 0734V 0735V 0730I 0738I 0731I 0736I 0739I 0732I 0737I 0733I
1330V 1338V 1331V 1336V 1339V 1332V 1337V 1333V 1334V 1335V 1333I 1338I 1331I 1336I 1339I 1332I 1337I 1333I
0B30V 0B38V 0B31V 0B36V 0B39V 0B32V 0B37V 0B33V 0B34V 0B35V 0B30I 0B38I 0B31I 0B36I 0B39I 0B32I 0B37I 0B33I
1730V 1738V 1731V 1736V 1739V 1732V 1737V 1733V 1734V 1735V 1730I 1738I 1731I 1736I 1739I 1732I 1737I 1733I
0130V 0138V 0131V 0136V 0139V 0132V 0137V 0133V 0134V 0135V 0130I 0138I 0131I 0136I 0139I 0132I 0137I 0133I
3330V 3338V 3331V 3336V 3339V 3332V 3337V 3333V 3334V 3335V 3330I 3338I 3331I 3336I 3339I 3332I 3337I 3333I
9330V 9338V 9331V 9336V 9339V 9332V 9337V 9333V 9334V 9335V 9330I 9338I 9331I 9336I 9339I 9332I 9337I 9333I
0530V 0538V 0531V 0536V 0539V 0532V 0537V 0533V 0534V 0535V 0530I 0538I 0531I 0536I 0539I 0532I 0537I 0533I
0A30V 0A38V 0A31V 0A36V 0A39V 0A32V 0A37V 0A33V 0A34V 0A35V 0A30I 0A38I 0A31I 0A36I 0A39I 0A32I 0A37I 0A33I
3730V 3738V 3731V 3736V 3739V 3732V 3737V 3733V 3734V 3735V 3730I 3738I 3731I 3736I 3739I 3732I 3737I 3733I
9730V 9738V 9731V 9736V 9739V 9732V 9737V 9733V 9734V 9735V 9730I 9738I 9731I 9736I 9739I 9732I 9737I 9733I
1130V 1138V 1131V 1136V 1139V 1132V 1137V 1133V 1134V 1135V 1130I 1138I 1131I 1136I 1139I 1132I 1137I 1133I
0030V 0038V 0031V 0036V 0039V 0032V 0037V 0033V 0034V 0035V 0030I 0038I 0031I 0036I 0039I 0032I 0037I 0033I
B330V B338V B331V B336V B339V B332V B337V B333V B334V B335V B330I B338I B331I B336I B339I B332I B337I B333I
3B30V 3B38V 3B31V 3B36V 3B39V 3B32V 3B37V 3B33V 3B34V 3B35V 3B30I 3B38I 3B31I 3B36I 3B39I 3B32I 3B37I 3B33I
1530V 1538V 1531V 1536V 1539V 1532V 1537V 1533V 1534V 1535V 1530I 1538I 1531I 1536I 1539I 1532I 1537I 1533I
0430V 0438V 0431V 0436V 0439V 0432V 0437V 0433V 0434V 0435V 0430I 0438I 0431I 0436I 0439I 0432I 0437I 0433I
3130V 3138V 3131V 3136V 3139V 3132V 3137V 3133V 3134V 3135V 3130I 3138I 3131I 3136I 3139I 3132I 3137I 3133I
9130V 9138V 9131V 9136V 9139V 9132V 9137V 9133V 9134V 9135V 9130I 9138I 9131I 9136I 9139I 9132I 9137I 9133I
1030V 1038V 1031V 1036V 1039V 1032V 1037V 1033V 1034V 1035V 1030I 1038I 1031I 1036I 1039I 1032I 1037I 1033I
±1 V
0830V 0838V 0831V 0836V 0839V 0832V 0837V 0833V 0834V 0835V 0830I 0838I 0831I 0836I 0839I 0832I 0837I 0833I
3530V 3538V 3531V 3536V 3539V 3532V 3537V 3533V 3534V 3535V 3530I 3538I 3531I 3536I 3539I 3532I 3537I 3533I
9530V 9538V 9531V 9536V 9539V 9532V 9537V 9533V 9534V 9535V 9530I 9538I 9531I 9536I 9539I 9532I 9537I 9533I
1430V 1438V 1431V 1436V 1439V 1432V 1437V 1333V 1434V 1435V 1430I 1438I 1431I 1436I 1439I 1432I 1437I 1433I
±2 V
2030V 2038V 2031V 2036V 2039V 2032V 2037V 2033V 2034V 2035V 2030I 2038I 2031I 2036I 2039I 2032I 2037I 2033I
3030V 3038V 3031V 3036V 3039V 3032V 3037V 3033V 3034V 3035V 3030I 3038I 3031I 3036I 3039I 3032I 3037I 3033I
9030V 9038V 9031V 9036V 9039V 9032V 9037V 9033V 9034V 9035V 9030I 9038I 9031I 9036I 9039I 9032I 9037I 9033I
±4 V
2430V 2438V 2431V 2436V 2439V 2432V 2437V 2433V 2434V 2435V 2430I 2438I 2431I 2436I 2439I 2432I 2437I 2433I
±5 V
3430V 3438V 3431V 3436V 3439V 3432V 3437V 3433V 3434V 3435V 3430I 3438I 3431I 3436I 3439I 3432I 3437I 3433I
9430V 9438V 9431V 9436V 9439V 9432V 9437V 9433V 9434V 9435V 9430I 9438I 9431I 9436I 9439I 9432I 9437I 9433I
±8 V
1C30V 1C38V 1C31V 1C36V 1C39V 1C32V 1C37V 1C33V 1C34V 1C35V 1C30I 1C38I 1C31I 1C36I 1C39I 1C32I 1C37I 1C33I
2830V 2838V 2831V 2836V 2839V 2832V 2837V 2833V 2834V 2835V 2830I 2838I 2831I 2836I 2839I 2832I 2837I 2833I
B030V B038V B031V B036V B039V B032V B037V B033V B034V B035V B030I B038I B031I B036I B039I B032I B037I B033I
3830V 3838V 3831V 3836V 3839V 3832V 3837V 3833V 3834V 3835V 3830I 3838I 3831I 3836I 3839I 3832I 3837I 3833I
A430V A438V A431V A436V A439V A432V A437V A433V A434V A435V A430I A438I A431I A436I A439I A432I A437I A433I
2C30V 2C38V 2C31V 2C36V 2C39V 2C32V 2C37V 2C33V 2C34V 2C35I 2C30I 2C38I 2C31I 2C36I 2C39I 2C32I 2C37I 2C33I
3C30V 3C38V 3C31V 3C36V 3C39V 3C32V 3C37V 3C33V 3C34V 3C35V 3C30I 3C38I 3C31I 3C36I 3C39I 3C32I 3C37I 3C33I
A830V A838V A831V A836V A839V A832V A837V A833V A834V A835V A830I A838I A831I A836I A839I A832I A837I A833I
B830V B838V B831V B836V B839V B832V B837V B833V B834V B835V B830I B838I B831I B836I B839I B832I B837I B833I
3 (–) 4 (+)
3 (–) 4 (+20 V)
2 (–) 3 (+)
9 (–) 11 (+)
9 (–) 11 (+)
11 (–) 10 (+15 V)
Using the Loop Power Supplies with Current Signals
Determine if your device (PLC, display, transmitter etc.) provides
power to the current loop or if the loop must be powered by the
DMD4380. Typical voltage may be 9-24 VDC at your device's terminals if it provides power to the loop.
If your device does not power the current loop, the module can
provide power using the appropriate terminals as indicated on the
wiring diagram.
Module Power
Check white model/serial number label for module operating voltage
to make sure it matches available power.
When using DC power, either polarity is acceptable, but for consistency with similar products, positive (+) can be wired to terminal 13
and negative (–) can be wired to terminal 16.
Mounting to a DIN Rail
The housing is IP40 rated and requires vertical installation on a
35 mm DIN rail in a protective panel or enclosure away from heat
sources. Do not block air flow. Allow 1" (25 mm) above and below
housing vents for air circulation.
1. Tilt front of module downward and position against DIN rail.
2. Clip lower mount to bottom edge of DIN rail.
3. Push front of module upward until upper mount snaps into place.
Removal
1. Push up on the bottom back of the module.
V
2. Tilt front of module downward to release upper mount from top
edge of DIN rail.
3. The module can now be removed from the DIN rail.
I
Calibration
Front-mounted Zero and Span potentiometers are used to calibrate
I
the output to compensate for load and lead variations.
Note: Perform the following calibration procedure any time switch
settings are changed.
1. Apply power to the module and allow a minimum 20 minute
warm up time.
2. Using an accurate calibration source, provide an input to the module
equal to the minimum input required for the application.
3. Using an accurate measurement device for the output, adjust
the Zero potentiometer for the exact minimum output desired.
The Zero control should only be adjusted when the input signal
is at its minimum. This will produce the corresponding minimum
output signal. For example: 4 mA for a 4-20 mA output or –10 V
for a ±10V output.
4. Set the input at maximum and adjust the Span pot for the
exact maximum output desired. The Span control should only
be adjusted when the input signal is at its maximum. This will
produce the corresponding maximum output signal. Example: for
4-20 mA output, the Span control will provide adjustment for the
20 mA or high end of the signal.
5. Repeat adjustments for maximum accuracy.
Output Test Function
When the Test button is pressed it will drive the output with a known
good signal that can be used as a diagnostic aid during initial start-up
or troubleshooting. When released, the output will return to normal.
The Test Cal. potentiometer is factory set to approximately 50%
output. It can be adjusted to set the test output from 0 to 100% of
the output span. Press and hold the Test button and adjust the Test
Cal. potentiometer for the desired output level.
Operation
The DMD4380 accepts a DC voltage or current input and provides an
optically isolated DC voltage or current output that is linearly related
to the input.
The green input LED provides a visual indication that a signal is being
sensed by the input circuitry of the module. It also indicates the input
signal strength by changing in intensity as the process changes from
minimum to maximum.
If the LED fails to illuminate, or fails to change in intensity as the
process changes, check the module power or signal input wiring. The
red output LED provides a visual indication that the output signal is
functioning. It becomes brighter as the input and the corresponding
output change from minimum to maximum.
For current outputs, the red LED will only light if the output loop current path is complete. For either current or voltage outputs, failure to
illuminate or a failure to change in intensity as the process changes
may indicate a problem with the module power or signal output
wiring. Note that it may be difficult to see the LEDs under bright
lighting conditions.
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