Rockwell Automation 1794-IC16_OC16 FLEX I/O 48V dc Input and Output Modules Inst. Inst. User Manual
Page 4
4
Publication 1794-IN105A-EN-P - April 2004
Derating Curve for the 1794-IC16
Nominal Input Current
5.0mA @ 48V dc
Isolation Voltage
Tested at 1900V dc for 1s between user and system
No isolation between individual channels
Flexbus Current
25mA
Power Dissipation
6.4W maximum @ 60V dc
Thermal Dissipation
Maximum 21.9 BTU/hr @ 60V dc
Input Filter Time
1
Off to On
On to Off
Minimum filter time of 1ms plus selected filter time of:
0.25ms, 0.5ms, 1ms, 2ms, 4ms, 8ms, 16ms, 32ms
0.25ms, 0.5ms, 1ms, 2ms, 4ms, 8ms, 16ms, 32ms
0.25ms default - Selectable using configuration word 3
Specifications - 48V dc 16 Output Module, Cat. No. 1794-OC16
Number of Outputs
16, nonisolated, sourcing
Module Location
Cat. No. 1794-TB2, -TB3, or -TB3S Terminal Base Unit
On-state Voltage
Range
30V dc minimum
48V dc nominal
60V dc maximum @ 45
o
C
55V dc maximum @ 55
o
C
Output Current Rating
8.0A (16 outputs @ 0.5A)
Off-state Voltage
60V dc maximum
On-state Current
2.0mA minimum per channel
500mA maximum per channel
Surge Current
4A for 10ms, repeatable every 2s
Off-state Leakage
1.0mA maximum
On-state Voltage Drop
1.0V dc maximum @ 0.5A
Isolation Voltage
Tested at 1900V dc for 1s between user and system
No isolation between individual channels
Output Signal Delay
2
Off to On
On to Off
0.5ms maximum
1.0ms maximum @ 25
o
C
2.0ms maximum @ 55
o
C
Flexbus Current
80mA
Power Dissipation
3.7W maximum @ 60V dc
Thermal Dissipation
12.6 BTU/hr @ 60V dc
Fusing
3
SANO MQ2 - 2A, 150V ac normal blow
General Specifications
1794-IC16
1794-OC16
Terminal Base Screw
Torque
7 pound-inches (0.8Nm)
Dimensions (with module
installed)
3.7H x 3.7W x 2.7D inches
94H x 94W x 69D mm
Indicators (field side
indication)
16 yellow status indicators
(customer device driven)
16 yellow status indicators
(logic driven)
External dc power
Supply voltage
Voltage range
Input Supply Current
48V dc nominal
30 to 60V dc (includes 5% ac
ripple)
51mA @ 30V dc
82mA @ 48V dc
107mA @ 60V dc
48V dc nominal
30 to 60V dc (includes 5% ac
ripple)
13mA @ 30V dc
21mA @ 48V dc
27mA @ 60V dc
Keyswitch Position
2
Environmental Conditions
Operating
Temperature
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 to 55°C (32 to 131°F)
Storage Temperature
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 to 85°C (–40 to 185°F)
Relative Humidity
IEC 60068-2-30 (Test Db, Un-packaged Non-operating
Damp Heat):
5 to 95% non-condensing
Vibration
IEC60068-2-6 (Test Fc, Operating):
5g @ 10-500Hz
Shock
IEC60068-2-27 (Test Ea, Unpackaged shock):
Operating 30g
Non-operating 50g
Emissions
CISPR 11:
Group 1, Class A (with appropriate enclosure)
ESD Immunity
IEC 61000-4-2:
8kV air discharges
4kV contact discharges
Radiated RF Immunity
IEC 61000-4-3:
10V/m with 1kHz sine-wave 80%AM from 30MHz to 1000MHz
EFT/B Immunity
IEC 61000-4-4:
±2kV at 5kHz on signal ports
±2kV at 5kHz on power ports
Surge Transient
Immunity
IEC 61000-4-5:
±1kV line-line(DM) and ±2kV line-earth(CM) on signal ports
±1kV line-line(DM) and ±2kV line-earth(CM) on power ports
Conducted RF
Immunity
IEC 61000-4-6:
10Vrms with 1kHz sine-wave 80%AM from 150kHz to 80MHz
Enclosure Type Rating
None (open-style)
Conductors
Wire Size
Category
4
12 to 22AWG (4 to 0.25mm
2
) stranded copper wire rated at 75°C or
higher
3/64 inch (1.2mm) insulation maximum
2
Certifications (when
product is marked)
5
UL
UL Listed Industrial Control Equipment
CSA CSA certified for Class I, Division 2, Groups A, B, C and D
Hazardous locations
EEx
5
European Union 94/9/EEC ATEX Directive, compliant with:
EN 50021; Potentially Explosive Atmospheres,
Protection “n” (Zone 2)
CE
5
European Union 89/336/EEC EMC Directive,
compliant with:
EN 61000-6-4; Industrial Emissions
EN 50082-2; Industrial Immunity
EN 61326; Meas./Control/Lab., Industrial Requirements
EN 61000-6-2; Industrial Immunity
C-Tick
5
- Australian Radiocommunications Act compliant with
AS/NZS CISPR 11, Industrial Emissions
1
Input off-to-on filter time is the time from a valid input signal to recognition by the module. Input on-to-off filter
time is time from the input signal dropping below the valid level to recognition by the module.
2
Delay time is the time from receipt of an output on or off command to t he output actually turning on or off.
3
Module outputs are not fused. Fusing is recommended. If fusing is desired, you must supply external fusing.
4
You use this category information for planning conductor routing as described in Allen-Bradley
publication 1770-4.1, Industrial Automation Wiring and Grounding Guidelines.
5
For the latest up-to-date information, see the Product Certification link at www.ab.com for Declarations of
Conformity, Certificates and other certification details. For notification of any additional release notes, refer to
www.ab.com/manuals/.
0
35
30
45
40
10
20
30
40
50
55
60
V
in
On-state
Voltage
(V dc)
Ambient Temperature
o
C
The area within the curve represents the safe operating range for the module under
various conditions of user supplied 48V dc supply voltages and ambient temperatures.
= Normal mounting safe operating range, (includes ).
= Other mounting positions (including inverted horizontal) safe operating range
41
29
50
55
60
Normal Mounting - Horizontal
Other Mounting (including Vertical, and Inverted Horizontal Mounting)
Voltage (max.)
Temperature (max.)
Normal Other
60
55
50
41
55
55
29
42
55