Masibus MAS-AO-08-D User manual

Doc. Ref No.m15/om/101
Issue No.:01
MAS-AO-08-D
INDEX
S PECIFICATION ................................................................................................................................................. 1
A PPLICATION .................................................................................................................................................... 1
C ONNECTION ..................................................................................................................................................... 2
S AFETY AND WARNING ................................................................................................................................. 2
I NSTALLATION ................................................................................................................................................... 2
O RDERING CODE ............................................................................................................................................. 3
T ROUBLE SHOOTING ...................................................................................................................................... 3

Doc. Ref No.: m15/om/101
Issue No.:01
1 | P a g e
MAS-AO-08-D
A PPLICATION
•Eliminate Ground Loop problems
•Protect Expensive control systems against Field Faults
•Isolate and Translate System Signals
•Field Interface for PLC/DCS/SCADA systems
Masibus Analog Output Field Interface Board has 8 channels that accepts
various types of current/voltage signals and converts them to isolated
current/voltage signals. It is compact universal DIN rail mounted with labeled
input and output connections. Independent zero & span adjustment for each
channel is possible.
8-Channel Analog Output Module
8-C HANNEL A NALOG O UTPUT M ODULE
8 channel configurations
Wide range of DC inputs and outputs
Independent zero & span for each
channel
Easy to calibrate
Accepts non-std. signal input option
DIN rail mounted
Compact Size
1. Dimension
225(L) x 90(W) x 90(D)
•All Dimension in mm.
S PECIFICATION
Input
No. of Channels & Type 8 Channel DC Volt/Current (Factory Set)
Input Range For Voltage : 1-5VDC,0-5VDC,0-10VDC
For Current : 4-20mA,0-20mA
Input Impedance Current I/P: 100 Ohms, Voltage I/P :> 5M
I/P connection
MKDS or 25pin D Type connector
Output
Output Type
Voltage/ Current
Output Range
For Voltage : 1-5VDC,0-5VDC,0-10VDC
For Current : 4-20mA,0-20mA
Output Load resistance
0/1 to 5V@ 1KΩmin,
0 to 10V@ 3KΩmin
0/4mA to 20mA@750Ωmax
Fault LED Indication
Red LED for over/under range(1-5V/4-20mA only)
Response Time ≤20milisecond
Accuracy 0.1% of output span
Drift 0.1% per Year
Calibration Zero & Span Individual per channel by multi-turn trim pots
O/P connection MKDS connector
Power supply
Power Supply 24VDC ±10%
Power Consumption < 12VA
Fuse Rating 2Amp (Fast Blown)
LED Indication Green LED – Healthy Status, Red LED –Fault Status
Isolation
1.5KV AC Input to Power, Output to Output and
Input to Output , Output to Power
Environmental
Operating temperature Operating at 0 to 50°C
Temp. Co-efficient ≤100 PPM
Relative humidity 30 to 95% RH non- condense
Environmental Protection Conformal Coating on PCB
Physical
Mounting Type DIN Rail (35 mm width)
Dimensions 225(L) x 90(W) x 90(D)
Weight Approx 400 gm
Terminal Detail
Terminal Block UL , CSA standard
Terminal Cable Size Upto 2.5mm² conductor

Doc. Ref No.: m15/om/101
Issue No.:01
2 | P a g e
MAS-AO-08-D
S AFETY AND WARNING
As MAS-AO-08-D with front panel potentiometer
calibration, must not be exposed to heavy shocks
or vibration which may cause SCM to get out of
calibration.
To avoid Electrostatic Discharge (ESD) to the SCM,
which may cause permanent damage, always
ground yourself by touching some ground
equipment.
Before installation or beginning of any
troubleshooting procedures the power to all
equipment must be switched off and isolated. Units
suspected of being faulty must be disconnected
and removed first and brought to a properly
equipped workshop for testing and repair.
Component replacement and internal adjustments
must be made by a company person only. Wiring
must be carried out by personnel, who have basic
electrical knowledge and practical experience.
All wiring must confirm to appropriate standards of
good practice and local codes and regulations.
Wiring must be suitable for voltage, current, and
temperature rating of the system. Beware not to
over-tighten the terminal screws.
C ONNECTION
Control Elements
Item
nos. Details
1 Main Power supply with electronic grounding
2 Fuse Fail LED indication
3 Power ON LED indication
4 MKDS Interface connector to DCS
5 25 Pin D type Male interface connector to DCS
6 Field output terminals
7 Product serial no.
Connection details
Connect rated power at terminal where 24VDC+ &
24VDC- described in wiring diagram.
Field Input/output Terminals:
Connect input between terminal where Input+ &
Input- for particular channel for Input Or 25 pin D
type PCB mounted male connector & take output
from where Output+ & Output- described in
connection details.
Input Connection Details for 25 Pin D Type
Pin No.
Description
1 Input0+
2 Input0-
3 Input1+
4 Input1-
5 Input2+
6 Input2-
7 Input3+
8 Input3-
9 Input4+
10 Input4-
11 Input5+
12 Input5-
13 Input6+
14 Input6-
15 Input7+
16 Input7-
BLOCK DIAGRAM

Doc. Ref No.: m15/om/101
Issue No.:01
3 | P a g e
MAS-AO-08-D
I NSTALLATION
Mounting:
Place the module with the DIN rail guide way on the
bottom edge of the DIN rail and then snap it
downwards.
The housing is mounted on the DIN rail by
swiveling it into place.
The Horizontal mounting arrangement Shown here,
allows good vertical air circulation .It is also
recommended to keep adequate gap between two
SCM.
Removal:
Release the snap-on catch using a screwdriver and
then detach the module from the bottom edge of the
DIN Rail.
O RDERING C ODE
ORDERING CODE
Model Input Type &
Range Output Type & Range Input Connection
MAS
-
AO
-
08-D x x
x
C 4-20mA C 4-20mA 0
PCB Terminal
Block
D 0-20mA D 0-20mA 1 D Type
connector
E 1-5VDC E 1-5VDC
F 0-5VDC F 0-5VDC
G 0-10VDC G 0-10VDC
S Special S Special
T ROUBLE S HOOTING
Unit Not Turning ON?
If RED LED on the module is ON then problem
can be bad connection or due to incorrect
rating of power fuse blows. If GREEN LED on
the module is ON, it indicates the module is in
healthy condition.
Unstable/Vague Reading
Check for loose connections.
First verify that all conventional instrumentation
norms have been followed for wiring. Make noise
away from the module. Check for ripple on power
supplies of Input & Output section.
Output not matching with the expected value
Kindly make sure that the output is really incorrect
with respect to input signal, before attempting any
re-calibration.
Fluctuation in Reading
The reason can be reverse input connections.
m
asibus
Automation & Instrumentation Pvt. Ltd.
B/30, GIDC Electronics Estate, Sector- 25,
Gandhinagar-382044, Gujarat, India
Ph: 91-079-23287275 / 76 / 77 / 78 / 79
Fax: [phone]
Email: [email protected]
Web: www.masibus.com