Rockwell Automation 1794-IM16_OM16 FLEX I/O 240V AC Input and Output Modules - Manual (Page 3)

FLEX I/O 240V AC Digital Input and Output Modules 3
Publication 1794-IN123B-EN-P - May 2009
Connecting Wiring for your 1794-OM16 Module
(using a 1794-TBN or TBNF Terminal Base)
1. Connect individual output wiring to terminals 0...15 on the 16-33 row (B),
and the 34-51 row (C) as indicated in Table 1.
2. Auxiliary terminal blocks are required to connect the associated L2
common for each channel. Connect the L2 side of the load together and
then connect to L2 on the power supply.
3. Connect 240V AC power L1 to terminal 34 on the 34-51 row (C).
4. Connect 240V AC common L2 to terminal 16 on the 16-33 row (B).
5. If daisychaining power to the next terminal base, connect a jumper from
terminal 51 (240V AC L1) on this base unit to terminal 34 on the next base
unit.
6. If continuing 240V AC common (L2) to the next base unit, connect a
jumper from terminal 33 (240V AC common L2) on this base unit to
terminal 16 on the next base unit.
Note: Total current draw through terminal base connection is limited to 10A.
Separate power connections to each terminal base may be necessary.
Configure Your AC Module
Set the Input Filter Time for the 1794-IM16 Module
You can increase the input filter time (FT) for channels 00...15 by setting the
corresponding bits in the output image table (complementary word) for the module.
For example, setting bits 00, 01 and 02 as shown below sets the off-to-on filter time
for inputs 00...11 to 12 ms. For other settings, refer to the Input Filter Time table.
To increase the filter time, set the bits according to Input Filter Times.
Input Filter Times
Specifications
Image Table Memory Map for the 1794-IM16 Module
Dec 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Oct 17 16 15 14 13 12 11 10 7 6 5 4 3 2 1 0
Read Input Data
Read Bit 15 Counter
Write R EF EC Reserved Filter Time 12...15 Filter Time 0...11
Where I = Input status
R = Reserved
EF = Enable Filter 0 = Enabled
EC = Enable Counter 0 = Enabled
Image Table Memory Map for the 1794-OM16 Module
Dec 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Oct 17 16 15 14 13 12 11 10 7 6 5 4 3 2 1 0
Read Not used - Set to 0
Write O15 O14 O13 O12 O11 O10 O9 O8 O7 O6 O5 O4 O3 O2 O1 O0
Where O = Output
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
FT = 12...15 FT = 0...11
O:010
Dec.
1 0 0
7 6 5 4 3
FLL
I:000
00
Fill File
Source
Destination
Length
#O:010
1
Write FT to
complement of
input module
Write filter time on system startup.
2 1 0
= 44 Octal or 36 Decimal
0 1 0 1 0 0
Bits Description Maximum Filter
Time (ms) 02 01 00 Filter Time for inputs 00...11 Selected Filter
Time
05 04 03 Filter Time for inputs 12...15 Off to On On to Off
0 0 0 Filter Time 0 (Default) 256 μ s 7.5 26.5
0 0 1 Filter Time 1 512 μ s 8 27
0 1 0 Filter Time 2 1 ms 9 28
0 1 1 Filter Time 3 2 ms 10 29
1 0 0 Filter Time 4 4 ms 12 31
1 0 1 Filter Time 5 8 ms 16 35
1 1 0 Filter Time 6 16 ms 24.5 44
1 1 1 Filter Time 7 32 ms 42 60.5
Specifications - FLEX I/O 240V AC Input Module 1794-IM16
Attribute Value
Number of I/O channels 16, nonisolated
Module location Cat. No. 1794-TBN
On-state voltage 159V AC min @ 47...63 Hz
240V AC nom @ 47...63 Hz
264V AC max @ 47...63 Hz
On-state current 5.30mA minimum @ 159V AC, 47Hz
11mA nominal @ 240V AC, 60Hz
13.29mA maximum @ 264V AC, 63Hz
Off-state voltage, max 40V AC
Off-state current, max 2.6 mA
Isolation voltage 250V (continuous), Basic Insulation Type
Type tested at 1706V DC for 60 s, between field side and system
No isolation between individual channels
+5V Field Bus current 32 mA
Power dissipation, max 6 W @ 264V AC
Thermal dissipation, max 20.47 BTU/hr @ 264V AC
Indicators (field side) 16 yellow status indicators
Input impedance 22.2 k Ω
Input filter time (1)
Off to On
On to Off
(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.
Refer to Input Filter Times table
Inrush current, max 450mA