Control Microsystems 5604 - Recommended AC Power Supply Configuration; Figure 2: Recommended AC Power Supply Configuration

5604 Input/Output (I/O) Module - Hardware Manual
October 19, 2007
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4.2.1 Recommended AC Power Supply Configuration
This configuration uses a single Class 2 16vac transformer to power the controller board and the
5604 I/O Module. 24V is available on the controller module connector P3. This is used to power the
analog circuitry for the analog input and output circuits on the 5604 I/O module.
Notes on this configuration:
 The 24V-boosted output (VLOOP) can be switched on and off under the control of the
application program to save power to any loads connected to VLOOP.
 The DC output of the controller board is unregulated and can be boosted to a stable 24Vdc on
the 5604 I/O Module under the control of the application program.
 Only a limited amount of power is available from the controller. This configuration is not
recommended when a large amount of current is required at 24V.
 The Controller Board DC Power terminal must be connected to the same power supply as the
5604 I/O Module DC Power terminals.
120
Vrms
16
Vrms
Class 2
Transformer
AC/DC
PWR IN
DC PWR
+ –
1
2
3
4
5
6
P5
Controller Board
P3
5604 I/O Module
DC PWR
+ –
1
2
3
4
5
6
AOUT
0 1 COM
Vloop
+
Controller DC output
boosted to 24V
Figure 2: Recommended AC Power Supply Configuration