Specialized Concentrated Focused
Principle of System Signal
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15
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Power Requirement
It is recommended to adopt DC24V/4.5A switch power for relays on the terminal board. If there are a
great many DC 24V relays controlled by binary output signal, you can appropriately expand the power
source capacity or add extra power (forcibly sharing ground with external power supply). Z axis brake
and solenoid valve also need DC 24V instead of external power to the greatest extent to reduce the
interference to CNC device by solenoid valve, etc.
2.1.2.
Binary Output
Signal characteristics
The internal equivalent circuit of binary output is shown in Fig. 2-3.
2.7K
Ω
7.2K
Ω
3K
Ω
OUTX
Fig. 2-3 Equivalent circuit of binary output interface
Technical parameters
Supply voltage: 24V DC power.
Current: the binary output is OC (open-collector) output, whose maximum allowable sucked current is
500mA.
Connection of Binary Output and External Circuit
The connection of solid-state relay and binary outputs is shown in Fig. 2-4.
2.7K
Ω
7.2K
Ω
3K
Ω
OUTX
-
+
+24V
Solid-state relay
DC-
SSR
2k
Fig. 2-4 Connection of solid-state relay and binary output
