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SC-F70
SC-F70
PID Operation Operating Instructions
2. For power lines
Wiring of the controller power source should be done so it will not
be affected by noise from power sources. When a source of noise is
nearby and the controller is affected by the noise, use a noise filter.
1.) Certain types of noise filter may not perform properly. Consider
the line voltage, filter frequency characteristics, and other things
before selecting a filter.
We recommend using the ZCB2203-11S filter, manufactured by
TDK.
2.) Be sure to mount noise filters on grounded panels, and use the
shortest cable possible between the noise filter output and
controller power terminal. A filter mounted on a longer cable may
be ineffective.
3.) When power cables and other cables for the controller are
adversely affected by noise, twist the power supply cables together.
The smaller the pitch, the greater effectiveness against noise.
4.) Do not install fuses, switches, or other such items on the cables
between the noise filter output and the controller power terminals,
because this may adversely affect filter performance.
3. For grounding
1.) Use only power cables that conform to local electrical codes.
To ground the controller, use cables with a nominal cross-
sectional area of 2.0 mm
2
(0.031 sq.in.) or more, use the same
contact point as the contact ground on the actuator, and ground in
the shortest possible distance.
2.) It will take about 3 seconds for the controller to prepare for
contact output when the power is turned on. When using the
controller to send a signal to an external interlock circuit or other
circuits, add a delay relay.
IN
OUT
Noise filter
Make interval short
Make as short
as possible
Lead Wire
Controller power
source terminals
Lead Wire
Controller Power Source
