Rockwell Automation 1794-OA8_OA8K_OA8I_OA16 FLEX I/O Digital AC Output Modules Installation Instructions User Manual
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Publication 1794-IN103B-EN-P - May 2011
Derating Curve for 1794-OA16
(1)
Auxiliary terminal blocks are required to connect the associated 120V AC common for each channel
when using the 1794-TBN terminal base with the 1794-OA16.
(2)
Output signal delay is the time from receipt of an output on or off command to the output actually
turning on or off.
(3)
Module outputs are not fused. Fusing is recommended. If fusing is desired, you must supply external
fusing or use the 1794-TBNF terminal base, if recommended.
General Specifications
Attribute
Value
Terminal base screw torque
Determined by installed terminal base
Dimensions (with module
installed), HxWxD
94 x 94 x 69 mm
(3.7 x 3.7 x 2.7 in.)
Indicators (field side
indication, logic driven)
8 yellow status indicators – for 1794-OA8, 1794-OA8K
8 yellow status indicators – for 1794-OA8I
16 yellow status indicators – for 1794-OA16
Supply voltage or
voltage ranges
FlexBus: 5V DC, 80 mA
Output: 120V AC, 50/60 Hz, 0.5 A, Pilot Duty, 4 A total
Isolation voltage
120V (continuous), Basic Insulation Type, field side to backplane
No isolation between individual channels
Type tested @ 1250V AC for 60 s
Pilot Duty Rating
5 A Inrush
Keyswitch position
8
Enclosure type rating
None (open-style)
North American Temp Code
T4A – for 1794-OA8, 1794-OA8K, 1794-OA8I only
T4 – for 1794-OA16 only
IEC temp code
T4 – for 1794-OA8K only
Wire size
Determined by installed terminal base
Wiring
Category
(1)
2 – on signal ports
(1)
Use this Conductor Category information for planning conductor routing. Refer to Industrial Automation
Wiring and Grounding Guidelines, publication
.
Environmental Specifications
Attribute
Value
Temperature,
operating
IEC 60068-2-1 (Test Ad, Operating Cold),
IEC 60068-2-2 (Test Bd, Operating Dry Heat),
IEC 60068-2-14 (Test Nb, Operating Thermal Shock):
0…55 °C (32…131 °F)
Temperature,
nonoperating
IEC 60068-2-1 (Test Ab, Un-packaged Non-operating Cold),
IEC 60068-2-2 (Test Bb, Un-packaged Non-operating Dry Heat),
IEC 60068-2-14 (Test Na, Un-packaged Non-operating Thermal Shock):
-40…85 °C (-40…185 °F)
Temperature,
surrounding air, max
55 °C (131 °F)
Relative humidity
IEC 60068-2-30 (Test Db, Unpackaged Damp Heat):
5…95% noncondensing
Vibration
IEC60068-2-6 (Test Fc, Operating):
5 g @ 10…500 Hz
Shock, operating
IEC 60068-2-27 (Test Ea, Unpackaged Shock):
30 g
Shock, nonoperating
IEC 60068-2-27 (Test Ea, Unpackaged Shock):
50 g
Emissions
CISPR 11:
Group 1, Class A (with appropriate enclosure)
ESD immunity
IEC 61000-4-2:
4 kV contact discharges
8 kV air discharges
Radiated RF
immunity
(1794-OA8, 1794-OA8K)
IEC 61000-4-3:
10V/m with 1 kHz sine-wave 80% AM from 30…2000 MHz
10V/m with 200 Hz 50% Pulse 100% AM @ 900 MHz
1V/m with 1 kHz sine-wave 80% AM from 2000…2700 MHz
(1794-OA8I)
IEC 61000-4-3:
10V/m with 1 kHz sine-wave 80% AM from 30…2000 MHz
1V/m with 1 kHz sine-wave 80% AM from 2000…2700 MHz
(1794-OA16)
IEC 61000-4-3:
10V/m with 1 kHz sine-wave 80% AM from 80…2000 MHz
10V/m with 200 Hz 50% Pulse 100% AM @ 900 MHz
10V/m with 200 Hz 50% Pulse 100% AM @ 1890 MHz
3V/m with 1 kHz sine-wave 80% AM from 2000…2700 MHz
Vibration
IEC 60068-2-6 (Test Fc, Operating):
5 g @ 10…500 Hz
EFT/B immunity
IEC 61000-4-4:
±2 kV at 5 kHz on signal ports
Surge transient
immunity
IEC 61000-4-5:
±1 kV line-line(DM) and ±2 kV line-earth(CM) on signal ports
Conducted RF
immunity
(1794-OA8, 1794-OA8K, 1794-OA8I)
IEC 61000-4-6:
10V rms with 1 kHz sine-wave 80% AM from 150 kHz…30 MHz
(1794-OA16)
IEC 61000-4-6
10V rms with 1 kHz sine-wave 80% AM from 150 kHz…80 MHz
Oscillatory surge
withstand
IEEE C37.90.1:
2.5 kV
Certifications
Certifications
(when product is
marked)
(1)
Value
UL
UL Listed Industrial Control Equipment. See UL File E65584.
CSA
(for 1794-OA8,
1794-OA8K, and
1794-OA8I only)
CSA Certified Process Control Equipment. See CSA File LR54689C.
CSA Certified Process Control Equipment for Class I, Division 2
Group A,B,C,D Hazardous Locations. See CSA File LR69960C.
CSA
(for 1794-OA16 only)
CSA Certified Process Control Equipment. See CSA File LR93701.
CSA Certified Process Control Equipment for Class I, Division 2
Group A,B,C,D Hazardous Locations. See CSA File LR93701.
CE
European Union 2004/108/EC EMC Directive, compliant with:
EN 61326-1; Meas./Control/Lab., Industrial Requirements
EN 61000-6-2; Industrial Immunity
EN 61000-6-4; Industrial Emissions
EN 61131-2; Programmable Controllers (Clause 8, Zone A & B)
European Union 2006/95/EC LVD, compliant with:
EN 61131-2; Programmable Controllers (Clause 11)
C-Tick
Australian Radiocommunications Act, compliant with:
AS/NZS CISPR 11; Industrial Emissions
Ex
(for 1794-OA8K only)
European Union 94/9/EC ATEX Directive, compliant with:
EN 60079-15; Potentially Explosive Atmospheres, Protection "n"
EN 60079-0; General Requirements
II 3 G Ex nA nC IIC T4 X
(1)
See the Product Certification link at
for Declarations of Conformity, Certificates,
and other certification details.
Mounting
Temperature, max.
Normal horizontal
55 °C
Other mounting positions (including inverted horizontal, vertical)
51 °C
Environmental Specifications
Attribute
Value
0
72
10
20
30
40
50
55
60
V in
On-state
V
oltage
(V AC)
Ambient Temperature
oC
The area within the curve represents the safe operating range for the module under
various conditions of user supplied 120V AC supply voltages and ambient temperatures.
= Other mounting positions (including inverted horizontal, vertical)
safe operating range
80
88
96
102
110
115
120
132
51
= Normal mounting safe operating range. Includes
130
45677