Rockwell Automation 1771-ID16 SERIES B Install Instr ac/dc (120V)Isolated Input - Manual (Page 4)

ac/dc (120V) Isolated Input Module 4
Publication 1771-IN070B-EN-P - August 2002
The isolated input module is shipped in a static-shielded packaging
to guard against electrostatic discharge damage. Observe the
following precautions when handling the module.
!
ATTENTION
Preventing Electrostatic Discharge
This equipment is sensitive to electrostatic
discharge, which can cause internal damage and
affect normal operation. Follow these guidelines
when you handle this equipment:
•
Touch a grounded object to discharge potential
static.
•
Wear an approved grounding wriststrap.
•
Do not touch connectors or pins on component
boards.
•
Do not touch circuit components inside the
equipment.
•
If available, use a static–safe workstation.
•
When not in use, keep modules in appropriate
static–safe packaging.
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.
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 Table A
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
Calculate Power
Requirements
Set the Filter Time