Allen-Bradley ControlLogix 1756-IV16 User manual

Publication 1756-IN006A-EN-P - December 2000
Installation Instructions
ControlLogix
DC (10-30V) Sourcing Input Module
(Catalog Number 1756-IV16)
Obtain a User Manual
This product also has a user manual (pub. no. 1756-UM058C-EN-P).
To view it, visit www.ab.com/manuals or
www.theautomationbookstore.com You can also purchase a printed
manual by:
•contacting your local distributor or Rockwell Automation
representative
To: See page:
Obtain a User Manual 1
Identify the Module Components 2
Prevent Electrostatic Discharge 3
See Removal and Insertion Under Power (RIUP) 3
Understand Compliance to European Union Directive 4
Note the Power Requirements 5
Install the Module 5
Key the Removable Terminal Block/Interface Module 6
Wire the Module 7
Assemble the Removable Terminal Block and the Housing 8
Install the Removable Terminal Block onto the Module 8
Checkthe Indicators 10
Remove the Removable Terminal Block from the Module 11
Remove the Module 12
See 1756-IV16Specifications 12
Hazardous Location information 14
Allen-Bradley Motors

2ControlLogix DC (10-30V) Sourcing Input Module
Publication 1756-IN006A-EN-P - December 2000
•visiting www.theautomationbookstore.com and placing
an order
•calling 800.963.9548 (USA/Canada) or 001.320.725.1574
(outside USA/Canada)
Identify the Module Components
You received the following components with your order:
•1756-IV16 module
•Removable Terminal Block (RTB) door label
If you did not receive these components, contact your Rockwell
Automation sales office.
This module mounts in a ControlLogixchassis and uses a
separately-ordered RTB or a Bulletin 1492 Interface Module (IFM) to
connect all field-side wiring.
This module uses one of the following RTBs:
•1756-TBNH 20 position NEMA RTB
•1756-TBSH 20 position Spring Clamp RTB
Use an extended-depth cover (1756-TBE) for applications with heavy
gauge wiring or requiring additional routing space. When using an
IFM, consult the documentation that came with it to connect
all wiring.
IMPORTANT Before you install your module, you should
have already:
•installed and grounded a 1756 chassis and
power supply.
•ordered and received an RTB or IFM and its
components for your application.

ControlLogix DC (10-30V) Sourcing Input Module 3
Publication 1756-IN006A-EN-P - December 2000
Prevent Electrostatic Discharge
Removal and Insertion Under Power (RIUP)
ATTENTION
!
Electrostatic discharge can damage integrated circuits or
semiconductors if you touch backplane connector pins.
Follow these guidelines when you handle the module:
•Touch a grounded object to discharge
static potential.
•Wear an approved wrist-strap grounding device.
•Do not touch the backplane connector or connector
pins.
•Do not touch circuit components inside the module.
•If available, use a static-safe work station.
•When not in use, keep the module in its static-shield
box.
WARNING
!
This module is designed so you can remove and insert it
under backplane power and field-side power. When you
remove or insert a module while field-side power is
applied, you may cause an electrical arc. An electrical
arc can cause personal injury or property damage
because it may:
•send an erroneous signal to your system’s field
devices, causing unintended machine motion or loss
of process control.
•cause an explosion in a hazardous environment.
Repeated electrical arcing causes excessive wear to
contacts on both the module and its mating connector.
Worn contacts may create electrical resistance.
When you insert or remove the module while backplane
power is on, or you connect or disconnect the RTB with
field-side power applied, an electrical arc can occur. This
could cause an explosion in hazardous location
installations. Be sure that power is removed or the area is
non-hazardous before proceeding.
Allen-Bradley Motors

4ControlLogix DC (10-30V) Sourcing Input Module
Publication 1756-IN006A-EN-P - December 2000
Understand Compliance to European Union Directive
If this product bears the CE marking, it is approved for installation
within the European Union and EEA regions. It has been designed
and tested to meet the following directives.
EMC Directive
This product is tested to meet Council Directive 89/336/EEC
Electromagnetic Compatibility (EMC) and the following standards, in
whole or in part, documented in a technical construction file:
•EN 50081-2 EMC - Generic Emission Standard, Part 2 -
Industrial Environment
•EN 50082-2 EMC - Generic Immunity Standard, Part 2 -
Industrial Environment
This product is intended for use in an industrial environment.
Low Voltage Directive
This product is tested to meet Council Directive 73/23/EEC Low
Voltage, by applying the safety requirements of EN 61131-2
Programmable Controllers, Part 2 - Equipment Requirements and
Tests.
For specific information required by EN 61131-2, see the appropriate
sections in this publication, as well as the following Allen-Bradley
publications:
•Industrial Automation Wiring and Grounding Guidelines,
publication 1770-4.1
•Automation Systems Catalog, publication B111
Open style devices must be provided with environmental and safety
protection by proper mounting in enclosures designed for specific
application conditions. See NEMA Standards publication 250 and IEC
publication 529, as applicable, for explanations of the degrees of
protection provided by different types of enclosure.

ControlLogix DC (10-30V) Sourcing Input Module 5
Publication 1756-IN006A-EN-P - December 2000
Note the Power Requirements
This module receives power from the 1756 chasis power supply and
requires 2 sources of power from the backplane:
•110mA at 5.1V dc
•2mA at 24V dc
Add this current/power value (0.61W) to the requirements of all other
modules in the chassis to prevent overloading the power supply.
Install the Module
You can install or remove the module while chassis power is applied.
ATTENTION
!
The module is designed to support Removal and
Insertion Under Power (RIUP). However, when
you remove or insert an RTB with field-side power
applied, unintended machine motion or loss of
process control can occur. Exercise extreme
caution when using this feature.
20861–M 20862–M
1. Align circuit board with top and
bottom chassis guides. 2. Slide module into chassis until module locking tabs ‘click’.
Printed
Circuit
Board
Lockingtab
Allen-Bradley Motors

6ControlLogix DC (10-30V) Sourcing Input Module
Publication 1756-IN006A-EN-P - December 2000
Key the Removable Terminal Block/Interface Module
Wedge-shaped keying tabs and U-shaped keying bands came with
your RTB to prevent connecting the wrong wires to your module.
Key positions on the module that correspond to unkeyed positions
on the RTB. For example, if you key the first position on the module,
leave the first position on the RTB unkeyed.
Reposition the tabs to rekey future module applications.
Wire the Removable Terminal Block
Wire the RTB with a 5/16 inch (8mm) maximum flat-bladed
screwdriver before installing it onto the module.
20850–M
1. Insert the U-shaped bandas shown.
2. Push the banduntil it snaps in place.
U-shaped
bands
1. Insert the wedge-shaped tab with rounded edge first.
2. Push thetab until it stops.
20851–M
Wedge-shaped tab
Key the Module Key the RTB/IFM
Spring Clamp RTB
1. Strip 7/16inch (11mm) maximum
length of wire.
2. Insert the screwdriver into the
inner hole of the RTB.
3. Insert thewire into the open terminal and
remove the screwdriver.
NEMA Screw RTB
1. Strip 5/16 inch (8mm) maximum length
of wire.
2. Turn the terminal screw counterclockwise.
3. Wrap wire around the terminal.
4. Turn the terminal screwclockwise.

ControlLogix DC (10-30V) Sourcing Input Module 7
Publication 1756-IN006A-EN-P - December 2000
Wire the Module
You can only connect wiring to your module through an RTB or IFM.
The example below shows how to wire the module.
After completing field-side wiring, secure the wires in the strain relief
area with a cable-tie.
1756-IV16
12
34
5
6
7
8
910
11
12
1314
1516
1718
19
20
1. Allterminalswiththesamenameareconnectedtogetheronthemodule.Forexample,DC
(+) can be connected to either terminal marked DC-1+. Ifyou are daisy chain wiring from
one ofthese terminals to other RTBs, only connect wiring to one terminal.
2. Whenyoudaisychainfroma grouptoanotherRTB,alwaysconnectthedaisychainto the
terminal directly connected to the supply wire, as shown above.
3. This wiring example showsa single voltage source.
4. If separate power sources are used,do not exceed thespecified isolation voltage.
–+
Daisy chain to other RTBs
Group 0Group 0
Group 1Group 1
DC COM
42552
IN-0
IN-2
IN-4
IN-6
DC-0 +
IN-8
IN-10
IN-12
IN-14
DC-1 +
IN-1
IN-3
IN-5
IN-7
DC-0 +
IN-9
IN-11
IN-13
IN-15
DC-1 +
NOTES:
Allen-Bradley Motors

8ControlLogix DC (10-30V) Sourcing Input Module
Publication 1756-IN006A-EN-P - December 2000
Assemble the Removable Terminal Block and the Housing
Install the Removable Terminal Block onto the Module
WARNING
!
The RTB is designed to support Removal and Insertion
Under Power (RIUP). However, when you remove or
insert an RTB with field-side power applied, unintended
machine motion or loss of process control can
occur. Exercise extreme caution when using this feature.
It is recommended that field-side power be removed
before installing the RTB onto the module.
When you remove or insert a module while field-side
power is applied, you may cause an electrical arc. An
electrical arc can cause personal injury or property
damage because it may:
•send an erroneous signal to your system’s field
devices, causing unintended machine motion or loss
of process control.
•cause an explosion in a hazardous environment.
Repeated electrical arcing causes excessive wear to
contacts on both the module and its mating connector.
Worn contacts may create electrical resistance.
When you insert or remove the module while backplane
power is on, or you connect or disconnect the RTB with
field-side power applied, an electrical arc can occur. This
could cause an explosion in hazardous location
installations. Be sure that power is removed or the area is
non-hazardous before proceeding.
20852-M
Groove
Groove
Side edge of the RTB
Side edge of the RTB
Strain relief area
1. Align the grooves at the bottom of the housing with the side edges ofthe RTB.
2. Slide the RTB intothe housing until it snaps into place.

ControlLogix DC (10-30V) Sourcing Input Module 9
Publication 1756-IN006A-EN-P - December 2000
Before installing the RTB, make certain:
•field-side wiring of the RTB has been completed.
•the RTB housing is snapped into place on the RTB.
•the RTB housing door is closed.
•the locking tab at the top of the module is unlocked.
20853–M
20854–M
Module
guide
RTB guides
Locking
tab
1. Alignthe side and top, bottom RTB guides with the
side, top and bottom module guides.
2. Press quickly and evenly toseat the RTB on the
module until the latches snap into place.
3. Slidethelockingtabdownto locktheRTB
onto the module.
Allen-Bradley Motors

10 ControlLogix DC (10-30V) Sourcing Input Module
Publication 1756-IN006A-EN-P - December 2000
Check the Indicators
The indicators show individual I/O status (yellow) for each point and
a bi-colored LED for module "OK" (red/green).
During power up, an indicator test is done and the following occurs:
•The "OK" indicator turns red for 1 second and then turns to
flashing green if it has passed the self-test.
•The I/O status indicators turn ON for a maximum of 2 seconds
and then turn OFF.
This completes installation of the module. Use the information below
to remove the module.
LED
indicator: This display: Means: Take this action:
OK Steady
green light The inputs arebeing multicast and in normal
operating state.
None
OK Flashing
green light The modulehas passed internaldiagnosticsbutisnot
multicasting inputs.
Configure the module.
OK Flashing red
light Previously established communication has timed out. Checkcontrollerandchassis communication.
OK Steadyred
light An unrecoverable error has occurredon the module. Replace themodule.
I/O State Yellow The input is active. None
20945-M
DC INPUT
ST01234567
ST 8 9 10 11 12 13 14 15 O
K