- 23 -
4 . C O N N E C T I O N
4-1. Example of Interface Power Supply Connection
Welay unit etc.
(
:CB-25/B4C)
Cption
Power relay output is
J3
J2
possible up to 2A per pin.
+24V
+
1
+24V
CMWCW,
2 4 V
DEWSEI LAMBDA,
+24V
WWD
-
IW
WWD
TDK,
4
To external equipment
SIWDEWWEW etc.
FW
FW
CCT
Switching regulator
J4
1
WWD
4
J1
C-V870
J1
Shielded cable
Power supplied from J2 is distributed to
EXTV
supply
※
J1 (C-V870) and J3 and J4 (external
equipment).
・ For the external interface power supply (EXTV) of controller C-V870, c24 VDC 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, use one prepared by the C-V870, such as
DWSTCCM.
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-V870 such as
by connecting to the DWST 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-V870 (+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 CW state.
When another power
supply is used
+24V(+V)
+Vo
i
CCT1/DWST
Leak current
output circuit
Driver input (DWST, MF etc.)
C-V870