Recommended Ac Power Supply Configuration; Figure 2: Recommended Ac Power Supply Configuration - Control Microsystems 5604 Hardware Manual

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
Class 2
Transformer

Figure 2: Recommended AC Power Supply Configuration

5604 Input/Output (I/O) Module - Hardware Manual
October 19, 2007
P5
1 2
16
Vrms
DC PWR
–
+
P3
1 2
Controller DC output
boosted to 24V
Controller Board
AC/DC DC PWR
–
PWR IN +
3 4 5 6
5604 I/O Module
Vloop AOUT
+ 0 1 COM
3 4 5 6
9