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General Catalog of BS Servo
Designed for V Series Servo Amplifiers
General Catalog of BS Servo
Synchronous AC Servo
BS Servo
V
Series
Standard type
1500min
-1
500W 7.5kW
Standard type
3000min
-1
1kW 10kW
ZA type
3000min
-1
30W 750W
ZA type
1500min
-1
11kW, 14kW
BS Servo
G
Series
Standard type
2000min
-1
20kW, 33kW
BS Servo
T
Series
Standard type
1500min
-1
400W 5kW
Standard type
2000min
-1
7.5kW, 10kW
Standard type
3000min
-1
500W 6.5kW
TOEI ELECTRIC CO., LTD. BS Servo System
2
Advantages of resolver multi-turn ABS system
The resolver type which is overwhelmingly superior to the encoder type
in environment resistance has now the performance as good as the
encoder type. The BS servo assuring quick response and high accuracy
can not only withstand a hostile environment, but build up an ideal
servo system.
In the machine employing a quick response servo, vibration will be
caused easily. Generally, deterioration is facilitated by the vibration, and
a serious trouble will occur suddenly.
The resolver has a coil structure without an electronic circuit and
assures outstanding durability against vibration. Thanks to this
durability, the BS servo is popularized in a diversity of machines
including a loom, spring fabricating machine, transport and
loading/unloading equipment, and transfer system.
Durability, quick response and high accuracy are
improving continuously.
Evolving resolver feedback type servo system
Resolver
Equipped with newly developed resolver multi-turn ABS system.
BS Servo Amplifier V Series
You can structure an ABS system without spoiling the
environment resistance which is characteristic of the resolver
.
Reduction in full motor length.
The full length of the V series motor is shortened by 41 mm.
Increase in the number of motor models employing an ABS
system. This resolver can also be used for the small-size
motor models such as ZA motor.
Wire-saving of the resolver cable. A standard cable (6-core) is
used in lieu of the special cable (12-core).
Low-priced. The price of the motor equipped with ABS system
is the same as that of the standard motor.
Amplifier with resolver ABS + Standard motor
The V series servo amplifier has realized the high-speed positioning and
synchronization, quick response, high accuracy and remarkable performance to help
the machine operate to its full capacity. The resolver type servo has evolved further.
The new type resolver multi-turn ABS sensor system is now on the worldwide
market, which will not require the previous magnetic sensor unit any more.
In spite of the absolute specifications, only the standard resolver is enough for the
motor. BS Servo System
3
Six control modes
Speed, current, position, speed/current/position, direct feed and draw control mode.
High speed
Speed loop frequency characteristic is 1kHz. High-speed control is realized by high-speed
sampling of motor sensor and use of dual CPU.
High performance
The new control system (TFC control) has been developed, which improves traceability to
command and load fluctuation dramatically.
Easy adjustment
You can select either of the four auto tuning modes according the servo system condition.
You can perform setting of various parameters, frequency analysis, profile measurement,
input/output status display, alarm display, etc., on the personal computer, using VelWin, the
software designed for the Windows.
Protection function
The servo system is protected by strengthening the main circuit protection function and by
various servo alarms detecting function.
Overseas standards
Designed for the CE-Marking and UL standard. (006P, 012P, 025P, 035P, 070P, 100P,
200P)
Features of BS servo V series
BS Servo Amplifier V Series
2
Control and Function
4
Display and Operation
6
Setting Parameters
7

Sequence Input/Output for Each Control Mode

8
Specifications Table
9
Main Circuit
10
Control Circuit
11
External View
12
Selecting Cables
16
Selecting Peripheral Equipment
17
BS Servo Motor
18
V Series

Standard Type 1500min
-1

20

Standard Type 3000min
-1

26

ZAType
3000min
-1

32

ZAType
1500min
-1

38
G Series

Standard Type 2000min
-1

40
T Series
Standard Type 1500min
-1

42

Standard Type 2000min
-1

42

Standard Type 3000min
-1

46
Table of Contents V Series Servo Amplifier
4
Control and Function
High-speed resolver
TFC control
Processing of high-speed calculation
Motor sensor
The new resolver was developed. The resolver's exciting
frequency is increased. The sensing time of the motor
rotating angle is reduced to 1/4 compared with the previous
time, which results in improvement of frequency
characteristic, and servo characteristics such as quick
response and reduction in settling time.
The dual CPU system is employed together with the high-speed
resolver, which results in high-speed calculation, shorten the
delay time and improvement of frequency characteristic and
servo rigidity. Due to reduction in settling time, very frequent
positioning is possible. Even if the ratio of load inertia to motor
inertial is large, stable control can be assured.
The new control system can improve the frequency
characteristic in a low-rigidity machine liable to cause
vibration. Vibration is controlled by estimating the machine
characteristics. Thus the gain of the control system can be
enhanced and the settling time can be reduced.
The sensor requires accuracy, quick response and
environment resistance. You can select the motor sensor
best suited for your machine based on the specifications of
the encoder and resolver shown below. Sint Cost
Sin(t +)
Stator
Rotor
Rotation transformer
Shaft angle
Excitation
Position output Sint
Sin(t +)
4 times the previous value
CPU1
CPU2
Improvement of
calculation speed
when compared with
our previous data
Position control
Speed control
Speed detection
Current control
Sequence control
Pulse output
Position control
Speed control
Speed detection
Current control
Sequence control
Pulse output
×8
×8
×4
×4
×16
×4
Position
command
Position
Virtual area
Actual area
Position, speed, torque control
Item
Resolver
17-bit serial ABS encoder 10000min
-1
6000min
-1
Resolution
24000
pulses/rev.
131072
pulses/rev.
Angular error
4 min.
1 min.
Vibration resistance
20G
10G
Impact resistance
100G
20G -55+155
-10+85
The table above shows the performance of single motor sensor.
The BS servo performance is limited by the motor and amplifier specifications.
Absolute accuracies of the encoder and resolver are about 1m and 5m,
respectively. (When converted into the 10 mm-pitch ball screw.)
The resolver is vibration- and heat-proof, and is superior in environment resistance.
The resolver and encoder are the same in repeatability. (The machine can be located at
the same position even after positioning is repeated many times.)
The response characteristic of the encoder is the same as that of the resolver.
Accuracy
Accuracy
Quick response
Quick response
Environment resistance
Environment resistance
Permissible speed of
revolution
Operating ambient
temperature V Series Servo Amplifier
5
Control and Function
Separate control power
Protection function
Auto tuning
Personal computer (PC) tool
The main power and control power for driving the motor are
separated. Thus, even if the main power has been cut off
at the time of alarm generation, the monitor display will not
be cleared.
The auto turning mode comes in the four modes; standard
mode, semi-auto mode, realtime mode and manual mode,
and complex servo adjustment is possible all the way from
the design stage to real operation.
Operability is enhanced with the DCL insertion terminal for
controlling harmonic wave, reverse-current absorption
circuit of minus load, holding/dynamic brake auxiliary
circuit, etc. Additionally, safety and power saving concept
is fully considered in the main circuit element protective
circuit and cooling fan control.
The GUI allows you to select the servo motor, perform
simulation as per the predetermined operation pattern,
various monitor, parameter setting, profile and frequency
analysis, auto tuning, etc., through the personal computer. It
is very useful when you design, start up and adjust the
servo system.
R0
S0
R
S
T
Control power
Main circuit power
Alarm display
Separate
power supply
Standard mode
Setting of target loop gain
Semi-auto mode
Load inertia is estimated in tuning operation.
Setting of permissible revolutions for tuning
Realtime mode
Load inertia is estimated consecutively during machine operation.
Manual mode
All gain is set manually.
Setting of target loop gain
Setting of targe