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Specifications Specifications 11/8/2017
Products: UI-8/AO-4
Functionalities: I/O Communication, Engineering, Hardware, Smoke Control
Product version: 1.6, 1.7, 1.8, 1.9

I/O Modules UI-8/AO-4 and UI-8/AO-4-H

I/O Modules UI-8/AO-4 and UI-8/AO-4-H

I/O Modules UI-8/AO-4 and UI-8/AO-4-H

Introduction

The UI-8/AO-4 and UI-8/AO-4-H are universal input, 8 channel and analog output, 4 channel I/O modules.

The universal inputs are ideal for any mix of temperature, pressure, flow, status points, and similar point types in a building control system.

The universal inputs can be configured to read several different types of inputs:

  • Digital

  • Counter

  • Supervised

  • Voltage

  • Current

  • Temperature

  • Resistive

As counter inputs they are commonly used in energy metering applications. As supervised inputs they are used for security applications where it is critical to know whether or not a wire has been cut or shorted. These events provide a separate indication of alarms and trouble conditions to the system.

The analog outputs are capable of supporting analog voltage or current point types. Therefore, analog outputs support a wide range of devices, such as actuators.

Function

Modular and scalable system

The modules are part of a modular system that delivers power and communications on a common bus. Connecting modules is a one-step process: just slide the modules together using the built-in connectors.

Patented two-piece design

Each module can be separated from its terminal base to allow the site to be wired prior to the installation of the electronics. The patented locking mechanism serves as handles for removing the module from its base. All critical components have a protective cover that permits convection cooling to occur.

Two-piece design

Two-piece design

Hot-connect and Hot-swap

Because critical applications require 24-hour operation, Schneider Electric designed the I/O modules for hot-connection of terminal bases and hot-swapping of the modules to their bases. This design ensures continuous power and communication during service operations.

Auto-addressing

The auto-addressing feature eliminates the need for setting DIP switches or pressing commission buttons. Each module automatically knows its order in the chain and assigns itself accordingly – significantly reducing engineering and maintenance time.

Simple DIN-rail installation

Fasteners easily snap into a locked position for panel installation. The fastener has a quick-release feature for easy DIN-rail removal.

Efficient terminal management

The I/O module terminals are clearly labeled and protected by transparent covers. The input and output terminals are at the top and bottom of each module and are accessible for maintenance without removing the module. The StruxureWare Building Operation WorkStation software can generate custom as-built labels for each module. Pre-perforated letter and A4 size label sheets are available as an accessory.

Accommodates multiple row panel installations

The SmartStruxure devices use built-in connectors for single row connectivity, side by side. If a panel size requires multiple rows, extension cords are available.

LED status indicators

The I/O module has a status indicator that denotes the health and status of the module.

Each input channel has a dedicated two color status LED. The LED can be configured to display either red or green for each input state.

Hand/Off/Auto switches

The front panel of the UI-8/AO-4-H includes Hand/Off/Auto (HOA) switches to provide override control of the analog outputs.

Each output also has a potentiometer to modulate the output signal when the switch is in the Hand position.

The position of the HOA switch is readable through user interfaces, such as the StruxureWare Building Operation WorkStation software, enabling more precise monitoring and control.

Protection

Protection components on the inputs and the outputs protect against high-voltage short-duration transient events.

The current inputs are protected against over current.

The analog outputs have current limits to protect against permanent short-circuit to ground.

Specifications
Input channels
8
Output channels
4
DC input supply power
3.2 W
DC input supply voltage
24 VDC
Environment
Ambient temperature, operating
0 to 50 °C (32 to 122 °F)
Ambient temperature, storage
-20 to +70 °C (-4 to +158 °F)
Maximum humidity
95 % RH non-condensing
Material
Plastic rating
UL94-5VB
Enclosure
PC/ABS
Enclosure rating
IP 20
Mechanical
Dimensions including terminal base
90 W x 114 H x 64 D mm (3.6 W x 4.5 H x 2.5 D in.)
Weight including terminal base
0.276 kg (0.61 lb)
Weight excluding terminal base
0.152 kg (0.34 lb)
Terminal base
TB-IO-W1
Agency compliances
Emission
RCM; EN 61000-6-3; FCC Part 15, Sub-part B, Class B
Immunity
EN 61000-6-2
Safety
EN 61010-1; UL 916 C-UL US Listed
Product
EN 61326-1
Smoke control product safety
UL 864
Part numbers
UI-8/AO-4, I/O module
8 universal inputs, 4 analog voltage/current outputs
SXWUI8A4X10001
UI-8/AO-4-H, I/O module with HOA switches
8 universal inputs, 4 analog voltage/current outputs with Hand/Off/Auto override switches
TB-IO-W1, terminal base for I/O module
(Required for each I/O module)
SXWTBIOW110001
Accessory part numbers
DIN-RAIL-CLIP, DIN-rail end clip
package of 25 pieces
SXWDINEND10001
PRINTOUT-A4-W1, printout sheets for terminal labels
A4 sheet size, 100 sheets, 18 labels per sheet
SXWTERLBL10011
PRINTOUT-LTR-W1, printout sheets for terminal labels
Letter sheet size, 100 sheets, 16 labels per sheet
SXWTERLBL10012
S-CABLE-L, S-cable extension cord for the I/O bus, L shaped connectors
1.5 m
SXWSCABLE10002
S-CABLE-L, S-cable extension cord for the I/O bus, L shaped connectors
0.75 m
SXWSCABLE10003
Universal inputs
Absolute maximum ratings
-0.5 to +24 VDC
A/D converter resolution
12 bits
Digital
Range
Dry contact switch closure or open collector/open drain, 24 VDC, 2.4 mA
Minimum pulse width
120 ms
LED polarity
Software selectable, if the LED is activated when the input is high or low
LED color
Red or green, software selectable
Counter
Range
Dry contact switch closure or open collector/open drain, 24 VDC, 2.4 mA
Minimum pulse width
20 ms
Maximum frequency
25 Hz
LED polarity
Software selectable, if the LED is activated when the input is high or low
LED color
Red or green, software selectable
Supervised
5 V circuit, 1 or 2 resistors
Monitored switch combinations
Series only, parallel only, and series and parallel
Resistor range
1 to 10 kohm
For a 2-resistor configuration, each resistor is assumed to have the same value +/- 5 %
Voltage
Range
0 to 10 VDC
Accuracy
+/-(7 mV + 0.2 % of reading)
Resolution
2.7 mV
Impedance
100 kohm
Reliability check
Yes
Current
Range
0 to 20 mA
Accuracy
+/-(0.03 mA + 0.4 % of reading)
Resolution
5.6 μA
Impedance
47 ohm
Reliability check
Yes
Resistive
10 ohm to 10 kohm accuracy
+/-(7 + 4 x 10 -3 x R) ohm
R = Resistance in ohm
10 kohm to 60 kohm accuracy
+/-(4 x 10 -3 x R + 7 x 10 -8 x R 2 ) ohm
R = Resistance in ohm
Reliability check
Yes
Temperature
Range
-50 to +150 °C (-58 to +302 °F)
Reliability check
Yes
Supported thermistors
Honeywell
20 kohm
Type I (Continuum)
10 kohm
Type II (I/NET)
10 kohm
Type III (Satchwell)
10 kohm
Type IV (FD)
10 kohm
Type V (FD w/ 11k shunt)
Linearized 10 kohm
Satchwell D?T
Linearized 10 kohm
Johnson Controls
2.2 kohm
Xenta
1.8 kohm
Balco
1 kohm
Thermistor accuracy
20 kohm, 10 kohm, 2.2 kohm, and 1.8 kohm
-50 to -30 °C: +/-1.5 °C (-58 to -22 °F: +/-2.7 °F)
  
-30 to 0 °C: +/-0.5 °C (-22 to +32 °F: +/-0.9 °F)
  
0 to 50 °C: +/-0.2 °C (32 to 122 °F: +/-0.4 °F)
  
50 to 100 °C: +/-0.5 °C (122 to 212 °F: +/-0.9 °F)
  
100 to 150 °C: +/-1.5 °C (212 to 302 °F: +/-2.7 °F)
Linearized 10 kohm
-50 to -30 °C: +/-3.0 °C (-58 to -22 °F: +/-5.4 °F)
  
-30 to 0 °C: +/-1.0 °C (-22 to +32 °F: +/-1.8 °F)
  
0 to 50 °C: +/-0.3 °C (32 to 122 °F: +/-0.5 °F)
  
50 to 100 °C: +/-0.5 °C (122 to 212 °F: +/-0.9 °F)
  
100 to 150 °C: +/-2.0 °C (212 to 302 °F: +/-3.6 °F)
1 kohm
-50 to +150 °C: +/-1.5 °C (-58 to +302° F: +/-2.7 °F)
Analog outputs, AO
Voltage
Range
0 to 10 VDC
Accuracy 
+/-100 mV
Resolution 
42 mV 
Minimum load resistance 
5 kohm 
Load range 
-1 to +2 mA 
Reliability check 
Yes 
Terminals
Voltage Output (VO), Return (RET)
Current
Range
0 to 20 mA
Accuracy 
+/-0.2 mA 
Resolution 
0.1 mA 
Load range 
0 to 650 ohm
Reliability check 
Yes 
Terminals 
Current Output (CO), Return (RET)

For protection from excess current that could be produced by field wiring, follow these instructions:

  • Connect one RET terminal on each of the I/O modules to a common chassis/power ground rail in the control panel using a size 16 AWG, 1.3 mm, or larger wire.

  • Individual 24 VDC power sources to the field must be current limited to maximum of 4 amps for UL compliant installations, and no more than 6 amps in other areas.

  • For more information on wiring, see Hardware Reference Guide.

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