YOKOGAWA WT3002E, Руководство пользователя

Страница: 9 / 256

1-1
IM WT3001E-51EN
Motor Evaluation Function (Option)
1
2
3
4
5
6
7
8
9
10
11
12
13
Index
1.1 Names and Functions of Parts of the Motor
Evaluation Function
Front Panel
START STOP
REMOTE
CAL
SENSOR RATIO
MEASURING
RMS MEAN DC RMEAN
CURRENT RANGE VOLTAGE RANGE
MEASURING
RMS MEAN DC RMEAN
ALL
INPUT INFO.
MOTOR
SET
CURSOR NULL
MENU STORE SET
MENU
LOWER ITEM LOWER FORM ALL USER SET
DISPLAY ITEM & ELEMENT
2
3 4
COMPEN
ESC
ELEMENT
ELEMENT
1
WIRING
MODE AUTO MODE AUTO
EXT SENSOR
RESET SET
PAGE PAGE
SCALING
HRM SET MEASURE SYNC SOURCE
AVG LINE FILTER
FREQ
FILTER
FILE
PRINT MISC
STORE IMAGE SAVE
HELP
NUMERIC WAVE
OTHERS
ITEM FORM
U / I / P
WP/q/
TIME
USER ELEMENT
UPDATE
RATE
HOLD
SINGLE
INTEG
LOCAL
SHIFT
YOKOGAWA
SHIFT+SCALING (MOTOR SET) key (option)
Sets items that are required in the motor evaluation such as torque,
number of rotations, and motor output.
Rear Panel
TORQUE
± 20V MAX
± 20V MAX
SPEED
42V pk MAX
Torque signal input connector (TORQUE)
(option)
Receives signals from torque meters when evaluating
motors.
Revolution signal input connector (SPEED)
(option)
Receives signals from revolution sensors when evaluating
motors.
Functional Description
By using the motor evaluation function (option), the rotating speed, torque, and output
of a motor can be determined from the signal that is proportional to the rotating speed
of the motor, and the signal received from a torque meter, which is proportional to the
motor’s torque. The signal applied from the revolution sensor or torque meter to this
instrument can be selected from analog signal (DC voltage) or pulse signal. In addition,
the synchronous speed and slip of a motor can be determined by setting the motor’s
number of poles. Furthermore, the active power and frequency that are measured by this
instrument and the motor output can be used to compute the motor efficiency and the
total efficiency.
Types of Measurement Functions
Measurement functions consists of Speed (rotating speed), Torque, Pm (motor output
or mechanical power), SyncSp (synchronous speed), and Slip. For details on the
determination of the measurement functions, see section 1.10. Set equations for the
motor efficiency ((Pm)/(PΣA) × 100) and total efficiency ((Pm)/(PΣB) × 100) according to
the procedures in section 5.7 in the User’s Manual IM WT3001E-01EN .
Limitations by Measurement Modes
Measurement functions of the motor evaluation function cannot be measured in wide
bandwidth harmonic measurement, IEC harmonics measurement, voltage fluctuation and
flicker measurement, and cycle-by-cycle measurement modes.
Chapter 1 Motor Evaluation Function (Option)