Technical data

Publication 1794-2.1 - January 2000
FLEX I/O and FLEX Integra Product Data
120V ac 16 Input Module Cat. No. 1794-IA16 37
Increasing the Input Filter Time
You can increase the input filter time (FT) for channels 00 through 11
and/or channels 12 through 15. Select the input filter time by setting
the corresponding bits in the output image table (complementary
word) for the module.
For example, to increase the off-to-on filter time for inputs 0 through
11 to 10ms for an ac input module at address rack 1, module group 0,
set bits 02, 01, and 00 as shown below.
Input Filter Times
Bits Description Maximum Filter Time
02 01 00 Filter Time for
Inputs 00-11
Off to On On to Off
05 04 03 Filter Time for
Inputs 12-15
0 0 0 Filter Time 0
(default)
7.5ms 26.5ms
0 0 1 Filter Time 1 8ms 27ms
0 1 0 Filter Time 2 9ms 28ms
0 1 1 Filter Time 3 10ms 29ms
1 0 0 Filter Time 4 12ms 31ms
1 0 1 Filter Time 5 16ms 35ms
1 1 0 Filter Time 6 24.5ms 44ms
1 1 1 Filter Time 7 42ms 60.5ms
O:010
FT = 00-11
Dec. (Octal) =3
Octal or
3 Decimal
Write Filter Time on system startup.
FLL
Fill File
Source 3
Destination #O:010
Length 1
Write FT to
complement of
input module.
I:000
00
41075
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
17 16 15 14 13 12 11 10 07 06 05 04 03 02 01 00
000011
FT = 12-15
Specifications - 1794-IA16
Number of Inputs 16 non-isolated
Module Location Cat. No. 1794-TB3, -TB3S, or -TBN
Terminal Base Unit
ON-State Voltage Minimum 74V ac, 47Hz
ON-State Minimum
Current Normal
Maximum
5.49mA @ 74V ac, 47Hz
12.06mA @ 120V ac, 60Hz
14.81mA @ 132V ac, 63Hz
OFF-State Voltage 20V ac maximum
Maximum OFF-State Current 2.87mA
Nominal Input Impedance 10K Ω
Nominal Input Current 12mA @ 120V ac, 60Hz
Isolation
Channel to Channel
Customer Power to
Input Channels
User to System
None required
None
100% tested at 2150V dc for 1s
Maximum Input
Filter Time
OFF to ON
(time from a valid input
signal to recognition
by block)
ON to OFF
(time from input
dropping below valid
level to recognition
by block)
7.5ms, 8ms, 9ms, 10ms,12ms, 16ms, 24.5ms, and
42ms
26.5ms, 27ms, 28ms, 29ms, 31ms, 35ms, 44ms,
and 60.5ms
Filter time selectable thru output image table
Default is 7.5ms off to on/26.5 on to off
Flexbus Current (max) 20mA @ 5V dc
Power Dissipation Maximum 6.4W @ 132V ac
Thermal Dissipation Maximum 21.8 BTU/hr @ 132V ac
Indicators (field side
indication, customer
device driven)
16 yellow status indicators
Keyswitch Position 8
General Specifications
External ac Power
Supply Voltage
Voltage Range
120V ac nominal
74 to 132V ac, 47-63Hz
Dimensions HxWxD 46mm x 94mm x 53mm
(1.8in x 3.7in x 2.1in)
Environmental Conditions
Operational Temperature
Storage Temperature
Relative Humidity
Shock Operating
Non-operating
Vibration
0 to 55
o
C (32 to 131
o
F)
-40 to 85
o
C (-40 to 185
o
F)
5 to 95% noncondensing
30g peak acceleration, 11(±1)ms pulse width
50g peak acceleration, 11(±1)ms pulse width
Tested 5g @ 10-500Hz per IEC 68-2-6
Conductors Wire Size
Category
12 gauge (4mm
2
) stranded maximum
3/64 inch (1.2mm) insulation maximum
1
1
Publication
Installation Instructions 1794-5.60
Agency Certification
1
Use this conductor category information for planning conductor routing. Refer to
publication 1770-4.1, “Industrial Automation Wiring and Grounding Guidelines for Noise
Immunity.”
Class I Division 2 certified
Groups A, B, C, D certified
Class I Zone 2 Group IIC certified