Download IO-IIM Input Isolation Modules

IO-IIM
Date of Issue: 15/11/2012
Issue Number: 5.7
Page 1 of 4
IO-IIM
Input Isolation Modules
Features:



Benefit:
Floating voltage outputs
Sensor powered from IO-IIM
DIN Rail mounting

Isolates the output from the supply
ground
Technical Overview
The IO-IIM range are Intended for use with BMS controllers where an input signal requires galvanic isolation
from power ground. The IO-IIM provides DC isolation from ground and accepts either a current or voltage input.
The modules are powered by 24Vac and provides a 24Vdc supply up to 100mA for the sensor. The output
galvanically isolated with respect to the input/supply ground.
Tel: +44 (0)1732 861200. - E-mail: [email protected]. - Web: www.sontay.com.
© 2012 Sontay Limited. All rights reserved
IO-IIM
Date of Issue: 15/11/2012
Issue Number: 5.7
Page 2 of 4
Specification:
Input signal:
IO-IIM-I
IO-IIM-V
Output signal
IO-IIM-I
IO-IIM-V
Output current
Supply
Typical current
Power supply to sensor
Max. sensor current
Connections
Ambient range
Dimensions
Country of origin
Part Codes:
IO-IIM-I
4-20mA, input isolation module
4-20mA
0-10V or 0-5Vdc
IO-IIM-V
0-10Vdc
0-10Vdc or 0-5Vdc
20mA max.
24Vac only (+15%, -10%)
80mA + load
24Vdc (±5%)
100mA
Rising cage terminals for 0.52.5mm² cable
-10 to +50°C (14 to 122°F)
75 x 102 x 65mm
(2.95 x 4.02 x 2.56”)
UK
0-5V/0-10Vdc, input isolation module
.
The products referred to in this data sheet meet the
requirements of EU Directive 2004/108/EC
Tel: +44 (0)1732 861200. - E-mail: [email protected]. - Web: www.sontay.com.
© 2012 Sontay Limited. All rights reserved
IO-IIM
Date of Issue: 15/11/2012
Issue Number: 5.7
Page 3 of 4
Applications & Function:
Intended for applications where the BEMS controller can only accept floating inputs and there are problems with sensor
grounding. Also useful for situations where a BEMS system is interfacing to other equipment which requires a floating input.
If used on the output of a controller which has a floating ground it is essential that the 24Vac supply to the module is also
floating.
Notes:

The IO-IIM-I provides a 24Vdc supply to the sensor but requires a 24Vac supply itself with one side grounded.

If the sensor is loop powered, the Sensor Gnd terminal is unused.
The IO-IIM-V and IO-IIM-I modules each provide complete electrical isolation from the supply and sensor input to the output.
Each comprises an opto-isolator with an integral power supply which powers the electronics and, if required the sensor.
A controller or an external power supply provides 24Vac power to the IO-IIM, which provides a 24Vdc regulated supply, at
up to 100mA. The output voltage is 0-10Vdc for an IO-IIM-I and either 0-5Vdc or 0-10Vdc for an IO-IIM-V.
Installation & Set-up:
Antistatic precautions must be observed when handling these modules. The PCB contains circuitry that can be
damaged by static discharge.
1.
The IO-IIM should only be installed by a competent, suitably trained technician, experienced in installation with
hazardous voltages. (>50Vac & <1000Vac or >75Vdc & 1500Vdc)
2.
Ensure that all power is disconnected before carrying out any work on the IO-IIM.
3.
Maximum cable is 2.5mm², care must be taken not to over tighten terminals.
4.
When mounting the IO-IIM care should be taken not to stress the PCB when fitting to the DIN rail. If it is necessary
remove the module from the DIN rail, be sure to use a flat bladed screwdriver to release the DIN clips.
The IO-IIM-I is factory set so that 4-20mA on the input becomes 0-10Vdc on the output.
The IO-IIM-V has two inputs; ÷1 and ÷2, so that if required a 0-10V signal can be converted to a 0-5Vdc signal by wiring it to
the ÷2 input. Alternatively, a 0-5Vdc signal can be connected to the ÷1 input to give an isolated 0-5Vdc output. The same
applies to a 0-10Vdc signal to give a 0-10Vdc output.
.
Tel: +44 (0)1732 861200. - E-mail: [email protected]. - Web: www.sontay.com.
© 2012 Sontay Limited. All rights reserved
IO-IIM
Date of Issue: 15/11/2012
Issue Number: 5.7
Page 4 of 4
Connections:
Output +
Output -
OP+ OP-
OP+ OP-
GND IP/1
IP/2 24VDC
Sensor 0v
1 i/p signal
2 i/p signal
Sensor 24Vdc
GND 24Vac
Supply 0v
24Vac
GND 4-20mA 24VDC
Sensor 0v
4-20mA signal
Sensor 24Vdc
Supply 0v
24Vac
GND 24Vac
IO-IIM-V
Output +
Output -
IO-IIM-I
Whilst every effort has been made to ensure the accuracy of this specification, Sontay cannot accept responsibility for damage, injury,
loss or expense from errors or omissions. In the interest of technical improvement, this specification may be altered without notice.
Tel: +44 (0)1732 861200. - E-mail: [email protected]. - Web: www.sontay.com.
© 2012 Sontay Limited. All rights reserved