LSVG-01/03EH (Direct linear servo operated valves, 3 ms response time.)0 pages

Product News
No. 10 01E

OBE (On-Board Electronics) Type Direct Operated Linear Servo Valves (Size: 01 & 03)
LSVG-01-EH-*-**-**-10, LSVG-03EH-*-**-**-10/1006
Release of New Products
We are pleased to announce the release of OBE (on-board electronics) type direct
operated linear servo valves.
Based on the design concepts of our high speed linear servo valves (LSVG) and
OBE type linear servo valves (LSVHG-*EH), the direct operated servo valves
provide “high accuracy, simple operation, and user-friendliness.”

Features
High Accuracy
The valves have a low hysteresis of 0.1 % or less, achieving high accuracy. They allow the main unit to
operate with much higher repeatability.

High Response
The valves provide higher levels of step and frequency responses, which are typically used as
measures of response characteristics; the step response is 3 ms (0
100 %) , and the
frequency response is 260 Hz/- 3 dB ( ± 25 % amplitude) ( : typical values for
LSVG-03EH with the Y port (dry type)).
Simple Operation
Just with 24 V DC power supply and command signal input, the valves allow the accurate
operation of hydraulic control systems.
User-friendliness
The on-board amplifier has a fault indicator lamp. If a valve error occurs and causes a
deviation between the command signal and the spool position, the lamp indicates the error
immediately.
Excellent Contamination Resistance
The simple structure of the direct operated valves and the adoption of a powerful linear motor
provide excellent contamination resistance. The permissible level of fluid contamination for
these valves is up to NAS class 10.

JIS Graphic Symbols

With Y Port (Dry Type)

Without Y Port (Wet Type)

Model Number Designation
F-

LSVG

- 03

EH

- 60

-W

A

-A

Special
Seals

Series
Number

Valve
Size

Amplifier
Type

Rated Flow at
P = 7 MPa

Drain Port (Y)
and
Permissible
Back Pres.

Fail-Safe
Function

Input Signal/Spool Travel
Monitoring

4:
4 L/min

F:
Special
Seals for
Phosphate
Ester Type
Fluid (omit
if not
required.)

10:
10 L/min

01
LSVG:
Direct
Operated
Linear
Servo
Valve

EH:
OBE Type

20:
20 L/min
40:
40 L/min

03

60:
60 L/min

For the wet type, water-glycol fluids cannot be used.

None:
With Y Port
(Dry Type)
(Permissible
Back Pres.:
0.05 MPa)
W:
Without Y
Port (Wet
Type)

A:
PABT
B:
PBAT
C:
Neutral

A: Voltage Signal ± 10 V
(P B A T Flow with
Positive Input)
B: Current Signal 4 - 20
mA (P B A T Flow
with 12 - 20 mA Input)
C: Current Signal ± 10 mA
(P B A T Flow with
Positive Input)
D: Voltage Signal ± 10 V
(P A B T Flow with
Positive Input)
E: Current Signal 4 - 20
mA (P A B T Flow
with 12 - 20 mA Input)
F: Current Signal ± 10 mA
(P A B T Flow with
Positive Input)

1
Connector
Type

- 10
Design
Number

1: 6 + PE
Pole
2: 11 + PE
Pole
- With
“Enable”
Function
- With
“Valve
Ready”
Function
- With
“Alarm
Output”
Function

10

10
1006
(Mounting
bolt: M6)