Specifications
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
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.
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.
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.
The auto-addressing feature helps eliminating 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.
Fasteners easily snap into a locked position for panel installation. The fastener has a quick-release feature for easy DIN-rail removal.
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 EcoStruxure 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.
The SmartX devices use built-in connectors for single row connectivity, side by side. If a panel size requires multiple rows, extension cords are available.
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.
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 EcoStruxure Building Operation WorkStation software, enabling more precise monitoring and control.
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 flame rating
|
UL94-5VB
|
Enclosure
|
PC/ABS
|
Ingress protection 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; BS/EN 61000-6-3; FCC Part 15, Sub-part B, Class B
|
Immunity
|
BS/EN 61000-6-2
|
Safety standards
|
BS/EN 61010-1; UL 916 C-UL US Listed
|
Product
|
BS/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 must 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
|
| Measurement 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 2 , 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.
UI-16
DI-16
RTD-DI-16
AO-8 and AO-8-H
AO-V-8 and AO-V-8-H
DO-FA-12 and DO-FA-12-H
DO-FC-8 and DO-FC-8-H
UI-8/AO-V-4 and UI-8/AO-V-4-H
UI-8/DO-FC-4 and UI-8/DO-FC-4-H