Step 6: Selecting Power Supplies - GE 90-30 PLC Series Installation And Hardware Manual

12

Step 6: Selecting Power Supplies

The following factors affect your Power Supply selection decisions. See the "Power Supplies"
chapter for additional details.
Table 12-1. Power Supply Feature Comparison Table
IC693PWR321 30 Watts
IC693PWR330 30 Watts
IC693PWR322 30 Watts
IC693PWR331 30 Watts
* Total of all outputs combined cannot exceed 30 watts.
12-6 Series 90-30 PLC Installation and Hardware Manual – August 2002
10-slot. If you only need a 5-slot size, you may want to consider whether the extra slots that a
10-slot size provides would be advantageous for possible future expansion. On the other hand,
the 5-slot size requires less space.
Expansion and Remote baseplates - These also come in 5-slot and 10-slot sizes. In general,
it is best to use Expansion baseplates where possible instead of Remote baseplates because of
the better speed performance of the Expansion baseplates. Where a total cable distance of over
50 feet is required, Remote baseplates must be used. In cases where you only need a 5-slot
size, you may want to consider whether it would be advantageous to use a 10-slot size in order
to have open slots for future expansion. That factor should be weighed against the fact that the
5-slot size requires less space and costs less.
Physical size - For locations with size limitations, one or more 5-slot baseplates may be a good
choice. See the "Baseplates" chapter for baseplate dimensions and clearance requirements.
Number of Modules Required - The number of modules needed at each location will have a
bearing on the sizes of racks required. You may choose to use a smaller rack (5-slot), if
possible, to save cost and space. However, as noted below, a larger rack (10-slot) with unused
slots will leave some room for future expansion, if desired.
Power capacity - All Series 90-30 Power Supplies have three individual outputs: +5VDC,
+24VDC (Relay), and +24VDC (Isolated). Although all of these Power Supplies are rated at
30 Watts maximum total output, the rating of the +5VDC output varies from supply to supply,
as shown in the following table. For applications requiring heavy loading of the +5VDC
supply, choose one of the "High Output" power supplies: IC693PWR330 or IC693PWR331.
Input voltage - As seen in the next table, nominal input voltage choices are 24VDC, 48VDC,
120VAC, 125VDC, and 240VAC.
Catalog Load
Number Capacity
100 to 240 VAC or
125 VDC
100 to 240 VAC or
125 VDC
24 or 48 VDC
24 VDC
Nominal
Input Output Capacities (Voltage/Power *)
+5 VDC +24 VDC Isolated
15 watts 20 watts
+5 VDC +24 VDC Isolated
30 watts 20 watts
+5 VDC +24 VDC Isolated
15 watts 20 watts
+5 VDC +24 VDC Isolated
30 watts 20 watts
+24 VDC Relay
15 watts
+24 VDC Relay
15 watts
+24 VDC Relay
15 watts
+24 VDC Relay
15 watts
GFK-0356Q