WELD 321 FINAL EXAM QUESTIONS AND ACCURATE
ANSWERS RATED A+
an actuator controls physical actions - ANSWER true
systems that assume the motion has taken place are called open loop - ANSWER true
an error in positioning caused by the reversal of travel direction is hysteresis error - ANSWER
false-backlash error
repeatability is defined as the range of positions attained when the system is repeatedly
commanded to one location under identical conditions - ANSWER true
absolute encoders do not lose their position when powered off - ANSWER true
which answer is not an example of a sensor
-stepper motor
-thermocouple
-proximity switch
-light curtain - ANSWER stepper motor
,on Panasonic a ___ command branches the next action according to the results of a condition
test
-increment
-if
-local
-set
-none are correct - ANSWER if
____ is the most common master controller for discreet operations such as assembly
-actuator
-industrial PC
-PLC
-robot - ANSWER PLC
what tier of master controller coordinates the functions of multiple PLCs, DCSs, and other
automated devices
-cell controllers
-corporate controllers
-process controllers
-vision controllers - ANSWER cell controllers
,____ control physical actions for the process controller
-thermocouples
-sensors
-actuators
-fixtures - ANSWER actuators
the Panasonic ___ command specifies destinations within the program
-increment
-call
-jump
-label - ANSWER label
which answer is a TYP f(x) performed by a robot controller when acting as cell master
controller on a small/simple cell
-manage I/O
-monitor complex safety devices
-operate vision systems
-coordinate multiple robots - ANSWER manage I/O
the ___ amplifier is the industry workhorse and most common type of servo motion amplifier
-linear
, -pulse width modulation (PWM)
pulse frequency modulation (PFM) - ANSWER PWM
a stepper motor is __
-common used with open loop control
-able to retain its position on power failure
-the smallest electrical machine increment - ANSWER commonly used with open loop control
precision/accuracy is __
-the measured difference btwn the actual position and the commanded position
-the smallest electrical machine increment
-the range of positions attained when a system is repeatedly commanded to one location -
ANSWER the measured difference btwn the actual position and the commanded position
a linear servo motor system is __
-the smallest electrical machine increment
-used without an encoder
-commonly used with open loop control
-direct drivewith no backlash - ANSWER direct drive with no backlash
an absolute encoder ___
ANSWERS RATED A+
an actuator controls physical actions - ANSWER true
systems that assume the motion has taken place are called open loop - ANSWER true
an error in positioning caused by the reversal of travel direction is hysteresis error - ANSWER
false-backlash error
repeatability is defined as the range of positions attained when the system is repeatedly
commanded to one location under identical conditions - ANSWER true
absolute encoders do not lose their position when powered off - ANSWER true
which answer is not an example of a sensor
-stepper motor
-thermocouple
-proximity switch
-light curtain - ANSWER stepper motor
,on Panasonic a ___ command branches the next action according to the results of a condition
test
-increment
-if
-local
-set
-none are correct - ANSWER if
____ is the most common master controller for discreet operations such as assembly
-actuator
-industrial PC
-PLC
-robot - ANSWER PLC
what tier of master controller coordinates the functions of multiple PLCs, DCSs, and other
automated devices
-cell controllers
-corporate controllers
-process controllers
-vision controllers - ANSWER cell controllers
,____ control physical actions for the process controller
-thermocouples
-sensors
-actuators
-fixtures - ANSWER actuators
the Panasonic ___ command specifies destinations within the program
-increment
-call
-jump
-label - ANSWER label
which answer is a TYP f(x) performed by a robot controller when acting as cell master
controller on a small/simple cell
-manage I/O
-monitor complex safety devices
-operate vision systems
-coordinate multiple robots - ANSWER manage I/O
the ___ amplifier is the industry workhorse and most common type of servo motion amplifier
-linear
, -pulse width modulation (PWM)
pulse frequency modulation (PFM) - ANSWER PWM
a stepper motor is __
-common used with open loop control
-able to retain its position on power failure
-the smallest electrical machine increment - ANSWER commonly used with open loop control
precision/accuracy is __
-the measured difference btwn the actual position and the commanded position
-the smallest electrical machine increment
-the range of positions attained when a system is repeatedly commanded to one location -
ANSWER the measured difference btwn the actual position and the commanded position
a linear servo motor system is __
-the smallest electrical machine increment
-used without an encoder
-commonly used with open loop control
-direct drivewith no backlash - ANSWER direct drive with no backlash
an absolute encoder ___
