Explanation of Terminology
205
ML-5120A
LD General term for diode laser and FC-LD.
LD chip Semiconductor laser device.
Leakage breaker
Safety device to shut o the circuit at detection of a leakage current that ows from the power
supply to the ground.
N
N
Neutral point terminal. This is a terminal to be connected a neutral point of the circuit. Abbrevia-
tion of Neutral. → P.49
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.157
O
Optical ber
Cable to transmit light that is made of quarts glass or thin plastic ber. 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 classied into 2 types, namely, multi mode and single mode by the number of light propa-
gation modes, and the multi-mode optical ber is divided into step index (SI) and graded index (GI)
by refractive index distribution of the core.
Oscillator
In the laser equipment, the oscillator means a unit to amplify and oscillate laser light. This unit
consists of a laser medium, excitation source, amplier, etc. Laser is amplied and oscillated
when the laser medium is excited by excitation source.
Output unit
Unit to output the laser light transmitted by optical ber to the workpiece. The optical ber con-
nected to the branch unit is connected. → P.25 and P.50
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.157
PE
Protective earthing terminal. This is a terminal that is provided to ground a device. Abbreviation
of Protective Earth. → P.49
Peak power
At laser processing, the peak power means the energy amount per time (value resulting from divid-
ing the pulse energy by pulse width) and its unit is watt (W).
Peak value
Laser output peak value. "PEAK POWER" value (FIX/FLEX) or "POWER" value (CW) that is set
on the SCHEDULE screen in this laser. → P.89, P.91 and P.93
Photo MOS relay
Full solid relay that adopts a light emitting diode on the driving side and MOS (Metal-Oxide Semi-
conductor) FET (Field-Eect Transistor) for the contact. → P.122
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.
Powersharing
Laser light delivery specication. Single laser light is split into multiple beams by beamsplitter so
that laser light is output simultaneously to multiple optical bers. → P.119
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.
Introduction Part Operating Part Maintenance Part Appendixes
Installation and
Preparation Part
To Next Page
Loading...
Need help?
General