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Chapter 5
Wire the GuardPLC 2000 Controller and I/O
Safety-related Analog
Output Module (1755-OF8)
Current Draw
The 1755-OF8 module uses analog outputs to transfer analog values
from the user program into outputs ranging from ±10V DC and
0…20 mA. The relationship between the value in the user program
and the output value is linear and is displayed in this table.
Logic Value
Output Voltage
Output Current
0
0.00V
0.0 mA
1000
10.00V
20.0 mA
-1000
-10.00V
na
The GuardPLC 2000 controller features several different modules.
These modules and their backplane current draw specifications are
listed in this table.
Cat. No.
Current Draw at 3.3V DC
Current Draw at 24V DC
1755-IB24XO16
0.3 A
0.5 A
1755-IF8
0.15 A
0.4 A
1755-OF8
0.15 A
0.4 A
1755-HSC
0.8 A
0.1 A
1755-L1
1.5 A
1.0 A
TIP
The GuardPLC 2000 controller can draw up to 30 A. The majority
of this 30 A is used to source inputs and outputs. Only 1 A is
required to operate the CPU module.
Connect the power supply, 1755-PB720, to the 24V DC supply
voltage. Refer to the GuardPLC 2000 Power Supply Installation
Instructions, publication 1755-IN007, for detailed instructions.
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Publication 1753-UM001C-EN-P - March 2010