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C-VX875
Instructions Manual
4.CCNNECTICN
4-1. Example of user I/C Interface Power Supply Connection
Relay unit etc.
Switching regulator
J1
J2
+
・CMRCN
+24V
24V ・TDK
C-VX875
J1
Cable
EXTV supply
GND
etc.
-
・CCSEL
FG
(CB-25A/4C etc.)
Relay unit etc.
+24V
+24V
x6
GND
Driver
24V supply
GND
x6
FG
(CB-35/PS etc.)
・For the user interface power supply (EXTV) of controller C-VX875, c24Vdc from the
common power supply so that it turns on and off in synchronization with externally connected
equipment. For easy connection, use the optional relay unit.
・For the power supply used for the driver interface(CCTx signal,DRST signal), use one prepared
by the controller, such as DRSTCCM.
For details, refer to Section 4-2, "Examples of Connection to Drivers."
◆ Power may be supplied to the driver from a power supply different from the C-VX875 such as
by connecting to the CCTx or DRST signal of the servo driver or motor free (MF) signal of
the stepping driver.
If so and power supply to the driver (+Vo) is greater than power
supply to the C-VX875 (+V), leak current i flows through the protection diode of the output
circuit and the input circuit of the connection destination may be put in the CN state.
When another power
+24V(+V)
supply is used
+Vo
i
DRST
Leak current
C-VX875 output circuit
Driver input(DRST、MF etc.)