Danfoss MCH User guide

MCH
Danfoss
Brand
Danfoss
Model
MCH
Type
User guide

Danfoss MCH Control Handle, with its ramp card amplifier, offers precise control for hydrostatic transmissions found in construction equipment. Adjustable ramp time from 0 to 7 seconds ensures smooth operation, while its rugged design withstands vibration and shock typically encountered in such environments. The handle features a center lock knob and is friction held for bidirectional operation. The MCH's compact panel mount design and neutral detection capabilities make it ideal for various applications requiring accurate and reliable control of hydraulic systems.

Danfoss MCH Control Handle, with its ramp card amplifier, offers precise control for hydrostatic transmissions found in construction equipment. Adjustable ramp time from 0 to 7 seconds ensures smooth operation, while its rugged design withstands vibration and shock typically encountered in such environments. The handle features a center lock knob and is friction held for bidirectional operation. The MCH's compact panel mount design and neutral detection capabilities make it ideal for various applications requiring accurate and reliable control of hydraulic systems.

1
BLN 96-9203-E • Rev. C • 08/2001
MCH52BXS103 Control Handle with Ramp Card Amplifi er
Technical Information
Overview
DESCRIPTION
The MCH52BXS103 Control Handle includes a Ramp Card Amplifi er and provides a time
delayed control for MCV104A, MCV105A and MCV111B Electrical Displacement Controls
(EDC´s) for hydrostatic transmissions.
The adjustable ramp time is the same for both up and down. The control works bidirec-
tionally.
FEATURES • Rugged components designed for the construction environment.
• Adjustable ramp time (0 s to 7 s).
• Withstands vibration and shock.
Mechanical variations on the basic Control Handle available upon request.
ORDERING INFORMATION
TECHNICAL DATA Supply voltage:
24 V
DC
Ripple: ≤ 20 %, maximum
Power load: 7,2 W
Output current: 100 mA ± 10 mA at 23 Ω
Adjustable ramp time: 0 s to 7 s, both up and down
Mounting: Panel mount without case
Type of control knob: Center lock
Handle actuation: Friction held, bidirectional
.oN .dI egatlov ylppuS eman eciveD
V 42 301SXB25HCM
DC
689626
OBSOLETE PRODUCT
2
BLN 96-9203-E • Rev. C • 08/2001
MCH52BXS103 Control Handle with Ramp Card Amplifi er
Technical Information
Block Diagram and Theory of Operation
BLOCK DIAGRAM
THEORY OF OPERATION The Control Handle MCH52BXS103 is powered with 24 V
DC
across pins 1 and 2. The set-
point is given by an internal potentiometer.
If the handle neutral position the value of the output current is ≤ 10 mA. In this range
a control for detection of the neutral position switches off the power to the EDC and
defi nes a true neutral position of the pump.
The external available micro switch contact can be used for a startlock circuit. The ramp
time is adjustable from 0 s to 7 s with potentiometer R2.
Output Current with Step Handle Angle Changes
(null to positive full stroke, positive full to negative full and negative full to null).
S00416
S01748_14
Ι
0
100 mA
t
100 mA
R2
MCV104A
MCV105A
MCV111B
U
t
R2
U
t
10V
1kΩ
R1
K1
K1
F
1
1
LED
V8
Battery
24V
DC
-+
3
2
3
2
3
2
1
7
6
5
4
A
B
Setpoint
EDC
Engine
Voltage regulator
Ramp time
Output stage
Relay contact
Ramp function
Neutral
detection
Neutral balance
Shown Position: Neutral
Micro swtich
Shown Position: Neutral
Mechanical coupled with Handle
OBSOLETE PRODUCT
3
BLN 96-9203-E • Rev. C • 08/2001
MCH52BXS103 Control Handle with Ramp Card Amplifi er
Technical Information
Dimensions and Connection Diagram
DIMENSIONS
S00444
S00370a
CONNECTION DIAGRAM
MCV104A
MCV105A
MCV111B
F
1
1 2 34567 8
Battery
24V
DC
-+
V8
2
1
2
3A
A B
R2
R1
EDC
Engine
Control Handle
Shown Position: Neutral
Micro switch
Ramp time
Neutral balance
Mechanically coupled with Handle
OBSOLETE PRODUCT
BLN 96-9203-E • Rev. C • 08/2001
MCH52BXS103 Control Handle with Ramp Card Amplifi er
Technical Information
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products
already on order provided that such alterations can be made without changes being necessary in specifications already agreed.
All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.
Danfoss
Power Solutions GmbH & Co. OHG
Krokamp 35
D-24539 Neumünster, Germany
Phone: +49 4321 871 0
Danfoss
Power Solutions ApS
Nordborgvej 81
DK-6430 Nordborg, Denmark
Phone: +45 7488 2222
Danfoss
Power Solutions (US) Company
2800 East 13th Street
Ames, IA 50010, USA
Phone: +1 515 239 6000
Danfoss
Power Solutions Trading
(Shanghai) Co., Ltd.
Building #22, No. 1000 Jin Hai Rd
Jin Qiao, Pudong New District
Shanghai, China 201206
Phone: +86 21 3418 5200
OBSOLETE PRODUCT
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Danfoss MCH User guide

MCH
Danfoss
Brand
Danfoss
Model
MCH
Type
User guide

Danfoss MCH Control Handle, with its ramp card amplifier, offers precise control for hydrostatic transmissions found in construction equipment. Adjustable ramp time from 0 to 7 seconds ensures smooth operation, while its rugged design withstands vibration and shock typically encountered in such environments. The handle features a center lock knob and is friction held for bidirectional operation. The MCH's compact panel mount design and neutral detection capabilities make it ideal for various applications requiring accurate and reliable control of hydraulic systems.

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