Rockwell Automation 1771-IBD INSTL INSTR DC (10-30V) INPUT - Manual (Page 3)

DC (10-30V) Input Module 3
Publication 1771-5.53 – April 1999
Your module receives its power through the 1771 I/O chassis
backplane from the chassis power supply. The module requires
130mA from the output of this supply. To calculate the requirements
for the backplane power supply, add 130mA to the power
requirements of all other modules in the I/O chassis. Calculating the
requirements will prevent an overload to the chassis backplane
and/or backplane power supply.
The off delay filter time is preset to 1ms. To change the filter time to
6ms, do the following:
1. Turn off power to the I/O chassis.
2. Locate the off-delay filter time configuration plug on the top-left
edge of the printed circuit board as shown below.
6ms OFF 1ms OFF
Off-Delay Filter Time Jumper
Top edge of circuit board
(shown in 1ms off position)
12636-I
module
Filter Delay Configuration Plug
3. Use your finger to slide the jumper off the 1ms position (the
middle post and the right post).
4. Carefully reposition the jumper by sliding it onto the 6ms
position (the middle post and the left post).
Key the Backplane Connector
Place your module in any slot in the chassis
except the leftmost slot which is reserved for
processors or adapters.
ATTENTION: Observe the following
precautions when inserting or removing
keys:
•
insert or remove keys with your fingers
•
make sure that key placement is correct
Incorrect keying or the use of a tool can
result in damage to the backplane
connector and possible system faults.
!
Position the keying bands in the backplane connectors to correspond to
the key slots on the module.
Place the keying bands:
between 10 and 12
between 16 and 18
You can change the position of these bands if subsequent system design
and rewiring makes insertion of a different type of module necessary.
Upper Connector
11022-I
I/O chassis
Power Requirements
Set the Filter Off Delay