Rockwell Automation 1771-ID16GM User Manual
Publication 1771-IN001A–EN–P – May 2000
ac (120V) Isolated Input
Module
Cat. No. 1771-ID16GM
Use this document as a guide when installing the ac Isolated Input
module.
For information on: See Page:
General Information 2
Understand compliance to European Union directives 2
Calculate power requirements 2
Initial handling 3
Set the filter time 3
Key the backplane connector 5
Install the module and field wiring arm 5
Connect the wiring to the module 6
Interpret the status indicators 8
CSA Hazardous Location Approval 10
Specifications 11
!
ATTENTION: The 1771-ID16GM isolated input
module is designed specifically for General Motors
Corporation use only. This module has specific input
current requirements as outlined in the specifications at
the end of this installation instruction.
For proper circuit operation:
• maximum input voltage is limited to 120V ac
• all inductive or solenoid input loads must provide
external surge suppression
In addition, this module has been qualified for Bulletin
700P style 120V relay circuits only.
Use this module in a series B or later I/O chassis. The
1771-ID16GM is not compatible with the 1771-AL
local I/O adapter.
Installation Instructions
Contents
ac (120V) Isolated Input Module2
Publication 1771-IN001A–EN–P – May 2000
This module contains customer-selectable input filtering to limit the
effects of voltage transients caused by contact bounce and/or radiated
electrical noise. The delay due to filtering is 9.0 or 18.0ms for
turning ac inputs on to off, and 1.0ms for turning ac inputs off to on.
The filter time is factory set to 9.0ms.
If this product has the CE mark 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 50081-2EMC – Generic Emission Standard,
Part 2 – Industrial Environment
• EN 50082-2EMC – 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 “Industrial Automation Wiring
and Grounding Guidelines,” Allen-Bradley publication 1770-4.1
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.
Your module receives its power through the 1771 I/O chassis
backplane from the chassis power supply. The module requires
75mA from the output of this supply. Add this to the requirements of
all other modules in the I/O chassis to prevent overloading the
chassis backplane and/or backplane power supply.
General Information
Understand Compliance to
European Union Directives
Calculate Power
Requirements
ac (120V) Isolated Input Module 3
Publication 1771-IN001A–EN–P – May 2000
The isolated input module is shipped in a static-shielded bag to guard
against electrostatic discharge damage. Observe the following
precautions when handling the module.
Electrostatic Discharge Damage
!
ATTENTION: Under some conditions, electrostatic
discharge can degrade performance or damage the
module. Observe the following precautions to guard
against electrostatic damage.
• Wear an approved wrist strap grounding device, or touch a
grounded object to discharge yourself before handling the
module.
• Do not touch the backplane connector or connector pins.
• If you configure or replace internal components, do not touch
other circuit components inside the module. If available, use a
static-free work station.
• When not in use, keep the module in a static-shielded bag.
The input module has 2 customer-selectable input filter time
jumpers. Jumper JPR 1 sets the input filter time for inputs 00 through
07, and jumper JPR 2 sets the input filter time for inputs 10 through
17. These filter times apply when the input is cycling from ON to
OFF. The OFF to ON filter time is fixed at 0.57ms. Refer to the
figure on page 4 for filter times and jumper settings.
Important: Half cycle dropout protection is dependent upon the
position of the jumpers. With the jumpers at the 9.0ms
position (Fast), half cycle protection may not be
guaranteed. If half cycle dropout protection is required,
position the jumpers in the 18.0ms position (Norm).
Maximum and minimum filter times are shown in
Table A.
Initial Handling
Set the Filter Time
Filter Time Jumpers
E1 = Jumper for inputs 00 through 07
E2 = Jumper for inputs 10 through 17
NORM
NORM
FAST
FAST
CH0–7
CH10–17
E1
E2
10557-I
ac (120V) Isolated Input Module4
Publication 1771-IN001A–EN–P – May 2000
To set the filtering time, proceed as follows:
1. Remove the side covers from the module circuit board by
removing the four screws securing the covers to the module and
remove the circuit board.
2. Position the jumpers as required to provide the filter time you
require (see below). Use your fingers to pull the jumper up and
position over the 2 pins corresponding to your selection (Fast or
Norm).
Setting the Filter Time Jumpers
Jumper Position Time Constant (ms)
Fast (factory default) 9.0 (ac)
Norm 18.0 (ac)
3. Reinstall the covers on the module circuit board and secure with 4
screws.
Table A
Minimum and Maximum Filter Times
Input
Voltage
Filter Time
(msec)
Off to On (ms)
Minimum Maximum Typical
On to Off (ms)
Minimum Maximum Typical
ac 9.0 0.5 7.0 2.0 7.0 33 20
ac 18.0 0.5 8.1 2.0 14.0 42 29
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