Specifications

CHAPTER 3 INSTALLATION
3.3 Noise Countermeasures
13
All connected cable must be connected to the FG.
Refer to "Section 3.3.2 Shield Clamping of Cables" or "Appendix 2. Cable drawings" for the details on
the connection methods.
Unit name
Connector
name
Application/function Cable shield treatment
Control unit
(FCU6-MU
)
CF10
ENC2
I/O INTERFACE
Encoder
Required
Required
NC keyboard
(FCU6-KB
)
HANDLE
CF21
CF22
K/B
MOUSE
Manual pulse generator
RS-232-C (CH1, 2)
RS-232-C (CH3, 4)
PS/2 keyboard
PS/2 mouse
Required
Required
Required
Required
Required
Base I/O unit
(FCU6-DX2
)
(FCU6-DX3
)
(FCU6-DX4
)
CF10
SV1
SV2
ENC1
SKP
RIO1
RIO2
I/O interface
Servo/spindle amplifier
Servo/spindle amplifier
Spindle encoder
Skip
Remote I/O unit
Remote I/O unit
Required
Required
Required
Required
Required
Required
Required
3.3.3 Connecting Spark Killers
The generated noise must be removed when the coil/contact operates.
As a measure, connect a spark killer in parallel with the coil/contact.
Coil
Contact
E
SK
SK
The CR compound element is useful for eliminating noise generated by magnetic induction.
Spark killer C: 0.033 ~ 0.1µF
R: 10 ~ 120Ω