SMC Networks LECSN-T Series User Manual

11. OPTIONS AND PERIPHERAL EQUIPMENT
11 - 22
Instrument Receiver
Servo
amplifier
Servo motor M
2)
2)
8)
1)
7)
7) 7)
5)
3)
4)
6)
3)
Sensor
power
supply
Sensor
Noise transmission
route
Suppression techniques
1) 2) 3)
When measuring instruments, receivers, sensors, etc. which handle weak signals and may
malfunction due to noise and/or their signal cables are contained in a cabinet together with the
driver or run near the driver, such devices may malfunction due to noises transmitted through the
air. The following techniques are required.
1. Provide maximum clearance between easily affected devices and the driver.
2. Provide maximum clearance between easily affected signal cables and the I/O cables of the
driver.
3. Avoid wiring the power lines (input/output lines of the driver) and signal lines side by side or
bundling them together.
4. Insert a line noise filter to the I/O cables or a radio noise filter on the input line.
5. Use shielded wires for the signal and power lines, or put the lines in separate metal conduits.
4) 5) 6)
When the power lines and the signal lines are laid side by side or bundled together, magnetic
induction noise and static induction noise will be transmitted through the signal cables and
malfunction may occur. The following techniques are required.
1. Provide maximum clearance between easily affected devices and the driver.
2. Provide maximum clearance between easily affected signal cables and the I/O cables of the
driver.
3. Avoid wiring the power lines (input/output lines of the driver) and signal lines side by side or
bundling them together.
4. Use shielded wires for the signal and power lines, or put the lines in separate metal conduits.
7)
When the power supply of peripheral equipment is connected to the power supply of the driver
system, noises produced by the driver may be transmitted back through the power supply cable and
the devices may malfunction. The following techniques are required.
1. Install the radio noise filter (FR-BIF of Mitsubishi Electric Corparation) on the power lines (Input
lines) of the driver.
2. Install the line noise filter (FR-BSF01/FR-BLF of Mitsubishi Electric Corparation) on the power
lines of the driver.
8)
When the cables of peripheral equipment are connected to the driver to make a closed loop circuit,
leakage current may flow to malfunction the peripheral equipment. If so, malfunction may be
prevented by disconnecting the grounding cable of the peripheral device.
Driver

SMC Networks LECSN-T Series Specifications

General

Brand	SMC Networks
Model	LECSN-T Series
Category	Controller
Language	English