Allen-Bradley MicroLogix 1200 User Manual page 142

F-8 System Loading and Heat Dissipation
Table F.14 Calculating the Current for Expansion I/O
1762-IF4
1762-IF2OF2
1762-IQ16
1762-IR4
1762-IT4
1762-OA8
1762-OB8
1762-OB16
1762-OF4
1762-OW8
1762-OW16
1762-OX6I
Total Modules (6 maximum):
(1) Refer to your expansion I/O Installation Instructions for Current Requirements not listed in this table.
Table F.15 Validating Systems using 1762-L40AWA, 1762-L40BXB, 1762-L40AWAR or 1762-L40BXBR
Maximum Allowable Values
Current:
600 mA at 5V dc 500 mA at 24V dc
System Loading:
15 Watts
Table F.16 Validating Systems using 1762-L40BWA or 1762-L40BWAR
Maximum Allowable Values
Current for Devices Connected to the +24V dc Sensor
Supply:
400 mA at 24V dc
Current for MicroLogix Accessories and Expansion I/O: Current (Subtotal 1 from Table F.13 + Subtotal 2 from page Table F.14.):
600 mA at 5V dc
System Loading:
Publication 1762-UM001D-EN-P - March 2004
Calculated Values
Current (Subtotal 1 from Table F.13 + Subtotal 2 from Table F.14.):
System Loading:
= (________ mA x 5V) + (________ mA x 24V)
= __________ mW + __________ mW
= __________ mW
= __________ W
500 mA at 24V dc
40 50
40 105
60 0
40 50
40 50
115 0
115 0
175 0
40 165
80 90
120 140
110 110
Subtotal 2:
Calculated Values
Sum of all sensor currents
Include 1761-NET-AIC here rather than in Table F.13, if it is powered externally
by the sensor supply
mA at 24V dc
mA at 5 V dc
System Loading:
mA at 24V dc