Connection Chapter Three CNC Device Connection
166
3.7.2 Technology Specifications
●
Photoelectric hookup technology with max. isolation voltage 2500VRMS
●
Supply voltage: 24V.
3.7.3 Connection Method
Connection
Layout
1
）
CNC outputs the signal to control the relative operation of machine, its direction
：
CNC
machine.
2
）
Except for SVC signal, other signals are driven by ULN2803 transistor array. max. load
instantaneous current is 200mA. The transistor conducts and the common port is +24V, when
the signal is valid.
3
）
When the machine side is connected with the relay and other inductance loads(within 20cm),
it must be employed with the spark suppressor which should be close to the load as possible.
When the machine is connected with the electric capacity load, it must be employed with the
current-limiting resistance in series.
4
）
M8, M9, M3, M4, M5 can be defined as the level or pulse control mode by MODM bit of P12.
When it is the pulse control mode, the pulse width of M code is defined by P15.
5
）
M10, M11, M78, M79 can be defined as the level or pulse control mode by HMOD bit of P25.
When it is the pulse control mode, the pulse width of M code is defined by P25.
6
）
S01, S02, S03, S04, M21/M22, M23/M24, M41, M42, M43, MSP are only the level control
mode. M11, M22, M24 have no signals to output.
a) Pulse control mode: output sequence of M3, M4, M5, MSP as follows
：
M3 or M4
M5
MSP
+
_
Machine side
CNC side
C
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Conv
erter
LM358
10
Ω
0V
13
25
T1
T2
T3
T1
