Digital Dream Standalone Motion Controller
DDCS-Expert Users Manual
Page-18
DDCS-Expert needs two power supplies,Main power is for controller system,IO Port power is
for Input and Output and MPG ports. Both power supply is 24VDC,current is 3A.In the System
Power input port ,the marked 24V and GND is the main power input ports;In the IO power input
ports,the COM+ and COM- is the power input ports for Input/Output Port and MPG.Please keep
in mind,only when the two power supplies are connected correctly the controller can be work
properly.
Many new users only give system power,then the limited switches,the relay,and MPG and
spindle don’t work at all,then please go to check if you also give power to IO ports.
IO power gives the power to all the IO ports,include the Limited switch,Relay,MPG,Etop and
all other Input and output Ports,without it,spindle,MPG,Input and Output ports cannot work.
In order to avoid electrical noise it is highly recommended to use two separate 24V power
supplies.
In order to avoid high-frequency electrical noise from power supply cable,it is highly recom-
mended to intall a noise filter at the power input to the switch power supply.
4.2 Power Supply Input
GND
PE
24V
Filter
Switch Power
Supply 1
L
N
+24V
GND
PE
PE
COM-
COM+
Filter
Switch Power
Supply 2
L
N
+24V
GND
PE
PE
DC24V +
-
IN01-
IN20
BN
BK
BU
Proximity Switch
NPN
Normal Open Mode
COM+
COM-
DC24V
+
-
IN01-
IN20
COM+
COM-
Figure 4-3 Power Supply Wiring Methods
Figure 4-4 How the IO Power gives power to the Input Ports