Amada MF-C300A-SF, Оригинальное руководство пользователя, Страница: 190 / 199

190
MF-C300A-SF/C500A-SF
Explanation of Terminology
Leakage breaker
Safety device to shut off the circuit at detection of a leakage current that flows from the power
supply to the ground.
N
NAK
Control code that is used for communication between computers. Negative response that is sent
from computer of the transmission destination to the transmission source. Abbreviation of Nega-
tive Acknowledgement. → P.139
O
Optical fiber
Cable to transmit light that is made of quarts glass or thin plastic fiber. This cable consists of a
core of the center and a clad covering the surroundings, and light is propagated in the core. The
mode is classified into 2 types, namely, multi mode and single mode by the number of light propa -
gation modes, and the multi-mode optical fiber is divided into step index (SI) and graded index (GI)
by refractive index distribution of the core.
Oscillator
In the laser welder, the oscillator means a unit to amplify and oscillate laser light. This unit con-
sists of a laser medium, excitation source, amplifier, etc. Laser is amplified and oscillated when
the laser medium is excited by excitation source.
Output unit
Unit to output the laser light transmitted by optical fiber to the workpiece. The optical fiber con -
nected to the input unit is connected. → P.24 and P.45
P
Parity
Method to check whether data is correctly transmitted or received in data communication. A data
error is detected by using bit information or parity bit that is added to the data. Parity means Odd
and Even.
Parity bit
Data that is added to the source data to detect an error in data communication. The receiving
side collates with the parity bit by checking whether the number of 0s or 1s in the obtained bit
train is odd or even. When an error is found, data is retransmitted or processing is interrupted.
→ P.139
PE
Protective earthing terminal. This is a terminal that is provided to ground a device. Abbreviation
of Protective Earth. → P.43
Photo MOS relay
Full solid relay that adopts a light emitting diode on the driving side and MOS (Metal-Oxide Semi-
conductor) FET (Field-Effect Transistor) for the contact. → P.119
PLC
Device that exerts sequence control by executing the programmed contents of control in se-
quence. This is often called Sequencer (product name of Mitsubishi Electric Corporation). Ab-
breviation of Programmable Logic Controller.
pps Number of pulses per second. Abbreviation of pulse per second.
Protective glasses
Protective glasses that the operator puts on to protect the eyes from laser light. The protective
glasses are divided into some types by wavelength of laser light.
Pulse width Time during which laser light is irradiated.
R
Rated current
Maximum effective current value when a current can be continuously output.
This value indicates that it is prohibited to cause a current to continuously flow exceeding this
level.
Remote interlock
Interlock function to shut off the laser output in an emergency as a means for using the laser de -
vice safely. In this laser, the E-STOP connector (the REM. I/L connector when replacing our old
products) is connected to the door of the room so that laser light may be shut off when the door is
opened. → P.123 and P.124
Resistivity
Electric resistance generally used as a scale to indicate the hardness of current flow for a mate -
rial. Its unit is ohm (Ω). The value that indicates this resistance by unit volume (1 cm x 1 cm x 1
cm) is volume resistivity and its unit is ohm centimeter (Ωcm).