Danfoss MCH User guide

BLN-95-9049 Issued: January 1995

DESCRIPTION

Proportional Valves

MCHXXX

The MCHXXX Control Handle is intended for open-loop

control of electrohydraulic proportional valves utilizing pulse

width modulated (PWM) outputs to optimize valve perfor-

mance. Adjustments for threshold and full stroke output are

provided to enhance valve feathering and valve function feel.

Optional ramping adjustment allows acceleration and decel-

eration control.

The control handles are designed for mobile equipment

applications. Typical uses include position and velocity con-

trol on aerial lifts, ladder trucks and cranes. Simple

switching-only models are available for on-off functions.

TECHNICAL DATA

ELECTRICAL

OPERATING VOLTAGE

11 - 15 Vdc (12 volt models)

22 - 30 Vdc (24 volt models)

OPERATING VOLTAGE

100 mA plus load current

LOAD RESISTANCE

Greater than 3 ohms

PULSE WIDTH MODULATED FREQUENCIES

30 Hz to 4000 Hz, factory set

FEATURES

• Shock and vibration resistant

• Choice of three mounting styles, with or without

water tight case

• Rugged components designed for the construction

environment

• Full auxiliary switch

• Optional two-speed range

• Reverse and short-circuit protection standard

• Simple to install

• Mechanical options include center-lock, spring-return,

and friction drag uni/bidirectionality

• Electrical characteristics customized to the application

• Choice of electrical terminal

• Optional switching in knob

MECHANICAL

HANDLE STROKE

± 30° (60° total travel)

SPRING TORQUE (SPRING RETURN MODELS)

11 ± 4 in-lbs. (1.2 ± .4 N-m) at center breakaway

18 ± 6 in-lbs. (2.0 ± .7 N-m) at full stroke

DETENT TORQUE (FRICTION DRAG MODELS)

(OVER AND ABOVE FRICTION DRAG)

10 in - lbs. (1.1 N-m)

FRICTION DRAG (FRICTION DRAG MODELS)

13.5 ± 3 in - lbs, (1.5 ± .3 N-m). Friction is adjusted at

the brake with a 5/32 SAE Allen wrench and 3/8 open-

end wrench.

ORDERING INFORMATION

A wide range of options to the basic Control Handle allows it to be custom-tailored to each application. See the Ordering

Specification Chart for assistance in determining model number. Other options are possible; consult Danfoss with further

questions.

OBSOLETE PRODUCT

TECHNICAL DATA

(continued)

AUXILIARY SWITCH CURRENT CAPABILITY

V3L Microswitch (cam actuated)

3 amp inductive at 28 Vdc

SM Microswitch (cam actuated)

2.5 amp inductive at 28 Vdc

Rocker Switch (in knob)

2 amp inductive at 28 Vdc

Push Button Switch (in knob)

5 amp inductive at 28 Vdc

MOUNTING

See the Dimensions diagram.

1. BASE OR SURFACE MOUNT

Connection is via four screws to the flanges on the

bottom of the metal case.

2. TOP MOUNT WITH CASE

Connection is via two screws to an enlarged mounting

plate. Top mounting allows the entire handle to be

removed from above the panel. The case is made of

black nylon plastic.

ORDERING INFORMATION

(continued)

3. TOP MOUNT WITHOUT CASE

Same as 2, but without case.

4. PANEL MOUNT WITH CASE

Connection is via four screws to the top plate that holds

the boot in place. The case is made of black nylon

plastic.

5. PANEL MOUNT WITHOUT CASE

Same as 4, but without case.

HANDLE ACTUATION

A SPRING RETURN, BIDIRECTIONAL

B FRICTION HELD, BIDIRECTIONAL

C FRICTION HELD, UNIDIRECTIONAL

D SPECIAL (FRICTION HELD, CENTER DETENT

ONLY, NO BRAKE)

ELECTRICAL CHARACTERISTICS

H SWITCHING

L ELECTRONIC PWM AUX SWITCHING

X SPECIAL

Z SPECIAL

CONNECTOR

1 TERMINAL STRIP INTERNAL

2 PIGTAIL 60-INCH WITH NO CONNECTOR

3 PIGTAIL WITH UNSEALED PACKARD CONNECTOR

5 SEALED PACKARD CONNECTOR

6 SEALED PACKARD CONNECTOR 4-PIN MALE AND

FEMALE

7 PIGTAIL WITH SEALED PACKARD CONNECTOR

8 PIGTAIL SEALED DEUTSCH CONNECTOR

ORDERING SPECIFICATION CHART

HANDLE

ACTUATION

TYPE OF

CONTROL KNOB

ELECTRICAL

CHARACTERISTICS

CONNECTORMOUNTING SUFFIX

NUMBER

X X X X X X X X

M C H

MOUNTING

1 BASE (SURFACE) MOUNT ALUMINUM CASE

2 TOP MOUNT (DROP IN) WITH PLASTIC CASE

3 TOP MOUNT (DROP IN) WITHOUT CASE

4 PANEL MOUNT WITH PLASTIC CASE

5 PANEL MOUNT WITHOUT CASE

TYPE OF CONTROL KNOB

1 NON-LOCKING

2 CENTER LOCK

3 PUSH BUTTON IN KNOB

4 TRON MAINTAINED ROCKER SWITCH

5 NON-LOCKING NO KNOB

6 3-POSITION MAINTAINED ROCKER SWITCH IN

KNOB

7 TRON MOMENTARY ROCKER SWITCH

8 SPECIAL (NO HANDLE OR KNOB)

9 3-POSITION MOMENTARY ROCKER SWITCH IN

KNOB

BLN-95-9049

OBSOLETE PRODUCT

ORDERING INFORMATION

(continued)

TYPE OF CONTROL KNOB

See the Dimensions diagram.

1. NON-LOCKING *

The non-locking handle has a standard ball knob. The

friction-held handle detents with a spring-loaded ball to

indicate null, while the spring-return handle has a spring-

preload indicating null.

2. CENTER-LOCK *

The center-lock handle has a cylindrical knob and pro-

vides a positive center-lock that unlatches when the

operator pulls up on the knob.

3. NON-LOCKING, AUXILIARY SWITCH *

This knob is teardrop shaped, with an auxiliary momen-

tary push button switch on top. The switch is wired

through the handle shaft to the body with three wires

(common, normally open and normally closed).

5. NON-LOCKING, NO KNOB *

The customer provides his own customized knob.

6. THREE POSITION MAINTAINED ROCKER SWITCH

IN KNOB

The cylindrical knob has a boot covering the three

position switch in the knob. The switch, wired through

the handle, is used for auxiliary functions.

7. TRON MOMENTARY ROCKER SWITCH

9. THREE POSITION MOMENTARY ROCKER SWITCH

IN KNOB

This is the same as 6, but the switch returns to the

center position when released.

* Short shaft option available.

HANDLE ACTUATION

A. SPRING-RETURN, BIDIRECTIONAL

This handle uses a torsion spring to return to the me-

chanical center position and has 30 degrees of handle

throw on either side of center.

B. FRICTION-HELD, BIDIRECTIONAL

This handle has an adjustable drag, set with a clamp-

type brake, that holds the handle at the set position and

has 30 degrees of handle throw on either side of the

center detent.

C. FRICTION-HELD, UNIDIRECTIONAL

This handle has a high-resolution 60 degrees of handle

throw, rotating on only one side of mechanical null,

which is at full stroke. It has no detent mechanism.

ELECTRICAL CHARACTERISTICS

H. SWITCHING

This handle is non-proportional. Moving the handle off

null activates switches that power ON/OFF devices

(e.g., solenoid valves).

L. STEP-PLUS-PROPORTIONAL, FULL AUXILIARY

SWITCHING, PULSE WIDTH MODULATED

This handle uses a printed circuit board that makes the

step height and output current fully adjustable, accom-

modating high current applications. It also has pulse

width modulation, which “dithers” the load to avoid

stiction. Full current output is at 30 degrees handle

stroke. Step current is a maximum 50% of full current

output. Typical dither frequencies (dependent on valve

specified in the suffix number) ranging from 30 to

4000 Hz.

CONNECTOR

1. TERMINAL STRIP

Electrical connections are made to a set of four internal

screw terminals.

2. PIGTAIL WITHOUT CONNECTOR

Four wires extend from the handle case. See Connec-

tion Diagram for lengths.

3. PIGTAIL WITH CONNECTOR

The wires from the case terminate in a Packard environ-

mental connector. See Connection Diagram.

6. SEALED PACKARD CONNECTOR (FOUR PIN MALE

AND FEMALE)

These are two separate connectors, each connected to

a separate potentiometer.

7. PIGTAIL SEALED PACKARD CONNECTOR

8. PIGTAIL SEALED DEUTSCH CONNECTOR

SUFFIX NUMBER

These final three characters are factory-generated. See

Electrical Characteristics Table. Information shown in the

Table must be provided (if your combination of features does

not already exist).

BLN-95-9049

OBSOLETE PRODUCT

OUTPUT CHARACTERISTICS

ELECTRICAL CHARACTERISTICS

1140A

Final Voltage Circuit Circuit Switch Switch Switch Step Full Stroke Application

Five Digits Type Characteristics 1 2 3 Current Current

H1013 None 2 Switches Switching Forward Reverse None None None

H1135 None 3 Switches Switching Forward Reverse Reverse None None

H1194 None 1 Switch Switching End-Off None None Uni-switch

L1204 12 PWM w/Ramp Adj Center-Off .60 ± .04 A 1.5 A Min Compact Controls

L1222 12 PWM TB Adj 2 Threshold 2 Center-Off 1 Fwd 1 Output 1 Reverse 15 ± 10 mA 100 ± 15 mA TB

L1244 12 PWM TB Adj 2 Threshold Center-Off N/S Output 40 mA 400 mA 19 Ω 2 in series

4 EDC 2 in

parallel TB

L2024 24 PWM Adj Center-Off Output None 0-400 mA 200-700 HPI 26 Ω

L2026 12 PWM Adj Output Output None < 20 mA > 260 mA V7058

L2030 12 PWM Adj Center-Off Output None Adj 0-3 Amps Multiple V7058s

L2092 12 PWM Uni Adj End-Off None None 0-800 mA 2.0 A 4.25 Ω 550 Hz

Dither

L2098 12 PWM Adj Output Output None 150 mA 400 mA Dynex 24 Ω

L2126 24 PWM Adj Output Output None > 50 mA 600 18 Ω

L2127 12 PWM Adj Output Phas Output Center-Off 150 mA 400 mA Dynex Vlv

24 Ω Sgl Cl

L2137 24 PWM Adj Output Phas Output Center-Off < 20 mA 400 mA 50 Ω Load

L2170 12L PWM Adj 2 Threshold Center-Off Output None 35 mA 200 mA EDC

L2171 12L PWM Adj 2 Threshold Center-Off Output None 10 mA 165 mA EDC

L2184 12L PWM Adj 2 Threshold Center-Off Output Reverse 10 mA 120 mA 90 Series EDC

L2192 12 PWM Uni Adj End-Off None None 0.6 >2.6 A 3.4 Ω

Wtrmn Vlv Uni

L2205 12L PWM w/Ramp Adj Center-Off Neut Start None 10 mA 120 mA EDC 22 Ω TB Load

L2224 12L PWM Adj Center-Off Reverse 2 Output < 20 280 ± 15 25 Ω Load

L2228 12 PWM w/Ramp Adj Center-Off None None < 40 mA > 400 mA 26 Ω Load TB

L2246 12 PWM Adj Phasing Output Phasing Output Center-Off 30 mA .5 Amp 25 Ω Load

L3016 12 PWM Adj Center-Off Output None 0-800 mA 400-1400 mA HPI 6.5 Ω

L3047 12 PWM w/Ramp Adj Center-Off None None 0-800 mA 400-1400 mA HPI 6.5 Ω TB

L3055 12 PWM Adj Center-Off Output None 0-1 A 1.98 A Barmag 4.9 Ω

L3085 12 PWM Adj Center-Off Output None 0-800 mA 400-1400 mA HPI 6.5 Ω

500 Hz Dither

L3116 12 PWM Adj Output Output None 250 mA 800 mA Gresen 9.6 Ω

L3123 24 PWM Adj Center-Off Output None 0-400 mA 200-700 mA HPI 26 Ω

L3131 12 PWM Adj Center-Off Output None 800 mA 2.4 A Min 4.1 Ω Load

L3150 12 PWM Adj Center-Off Output None .60 ± .040 > 2.60 A 3.4 Ω Wtrmn Vlv

L3243 12

PWM w/2.5sec Prop Adj Center Auxiliary None None 0.60 ± .04 A 1.4 A Min 6.5 Ω Load

L5220 12 PWM Adj Center-Off Output Reverse 0.800 mA 400-1400 mA 6.5 Ω HPI 500 Hz

L7146 12 PWM Adj Center-Off Reverse None < 20 200 ± 20 mA 10 Ω Load

L7203 12 PWM Adj 2 Threshold Center-Off Reverse None < 20 200 ± 20 mA 10 Ω Load

L7229 12 PWM Adj 2 Threshold Center-Off Reverse None ±25 mA ± 50 mA 100 Hz

375 mA 1250 mA 6.5 Ω Load

BLN-95-9049

OBSOLETE PRODUCT

CONNECTION DIAGRAM

222 MAX

(8.75)

149,1 MAX (5.87)

136,4 ±0,4 (5.37)

31,75

(1.25)

50,8 ±0,4

(2.0)

63,76 MAX

(2.51)

6,35

(0.25)

6,35

(0.25)

7,1 (4)

(0.279)

PANEL CUTOUT AND

MOUNTING PLATE

138

(5.43)

(0.275)

33,3

(1.31)

66,6

(2.62)

124 (4.88)

150,5 MAX (5.93)

85,5 MAX

(3.37)

4,5 ± 0.008 (2)

MOUNTING PLATE

50,8

(2.0)

50,8

(2.0)

25,4

(1.0)

25,4

(1.0)

54,0

(2.12)

REMOVE BURRS

FROM BOTH SIDES OF PANEL

TO AVOID DAMAGING BOOT

6,2 (4 HOLES)

(0.245)

CUSTOMER

PANEL

CUSTOMER

PANEL

30° REF30° REF

143,5 MAX

(5.65)

113 MAX

(4.45)

29,5 (1.16)

60,4

(2.38)

121,3 MAX (4.78)

TOP (DROP IN)

MOUNT

CUSTOMER

PANEL

TAPPING

SCREWS

(2)

30° REF

302 MAX

(11.88)

121 MAX (4.76)

30° REF30° REF

121 MAX (4.76)

CUSTOMER

PANEL

120 MAX

(4.72)

14,2

(0.56)

2 PLACES

(1.06)

269,2 MAX

(10.6)

29,5 MAX

(1.16)

SURFACE MOUNT

96 MAX

(3.78)

120 MAX

(4.72)

30° REF30° REF

147,3 MAX

(5.8)

97,6 MAX

(3.84)

114,6

MAX

(4.51)

29,5 (1.16)

60,4

(2.38)

121,3 MAX (4.78)

44,4

(1.75)

64,1 MAX

2.52

PANEL MOUNT SIDE VIEW

OF ALL

PANEL MOUNT

REMOVE COLLAR

THAT RETAINS BOOT

AND DISCARD

DIMENSIONS

Typical Phasing and Color Scheme For Handle With Cable and Connector

Dimensions of the MCHXXX Control Handle in Millimeters (Inches)

1135C

1136A

BLN-95-9049

OBSOLETE PRODUCT

PERFORMANCE

NULL CURRENT

± 5 mA maximum if not switched (12 Vdc models)

± 8 mA maximum if not switched (24 Vdc models)

CENTER DEADZONE (OPTIONAL)

± 3° nominal

ADJUSTABLE FULL STROKE CURRENT CAPABILITY

Application specified. See Ordering Information.

ADJUSTABLE STEP CURRENT

Application specified. See Ordering Information. Step

current occurs at end of deadzone.

RAMP TIME

.05–10 seconds - adjustable

ENVIRONMENTAL

TEMPERATURE

-40° to 170°F (-40° to 77°C) operating

-30° to 150°F (-34° to 66°C) storage

HUMIDITY

After being placed in a controlled atmosphere of 95%

humidity at 38°C (100°F) for 10 days, the Control Handle

will perform within specification limits.

RAIN

After being showered from all directions by a high

pressure hose down, the Control Handle will perform

within specification limits (applied to metal cased mod-

els only). This test fulfills NEMA4 (IP65) specifications.

VIBRATION

Withstands a vibration test designed for mobile equip-

ment controls consisting of two parts:

1. Cycling from 5 to 2000 Hz in each of the 3 axes.

2. Resonance dwell for one million cycles for each

resonance point in each of the 3 axes.

SHOCK

50 g for 11 ms. Three shocks in both directions of the 3

mutually perpendicular axes for a total of 18 shocks.

LIFE

Greater than 1,000,000 cycles.

DIMENSIONS

See the Dimension diagram.

WIRING

If no external cabling is ordered, access to power, ground and

the potentiometer(s) is gained through a barrier terminal strip

inside the handle’s case. The customer should run a cable

from the strip through the connector on the side or bottom of

the case.

The switch terminals are 3/16" quick-connect. The Connec-

tion Diagram shows a pre-wired Control Handle with

center-off switch and Packard connector, exhibiting the

handle phasing and color coding of the wires.

The Packard Connector Assembly diagram demonstrates

how to assemble the mating Packard connector (male shell,

female sockets). The necessary parts are available in a bag

assembly (Part Number K03370) composed of six sockets

and one plastic connector body.

The Potentiometer Locations diagram shows the location of

the three trim potentiometers on the “L” handle. See the

“Electrical Characteristics” section of the Ordering Information.

In order to avoid damaging the Control Handle, a fuse wired

in series is recommended.

WARNING

A failure may cause an output which could activate the

valve or pump. If this occurs, the apparatus may move,

possibly endangering people or equipment. It is strongly

recommended that handles be equipped with a neutral

off switch to prevent this eventuality. For cases in which

an active neutral is necessary, a deadman switch, an

emergency shut down and/or braking system sufficient

to stop the vehicle immediately should be provided.

BLN-95-9049

OBSOLETE PRODUCT

PACKARD CONNECTOR ASSEMBLY

1137B

Unsealed Packard Mating Connector Assembly

1376

POTENTIOMETER LOCATIONS

Location of Trim Potentiometers on "L" Control Handles

1138B

SEALED PACKARD CONNECTOR

OBSOLETE PRODUCT

CUSTOMER SERVICE

NORTH AMERICA

ORDER FROM

Danfoss (US) Company

Customer Service Department

3500 Annapolis Lane North

Minneapolis, Minnesota 55447

Telephone: (763) 509-2084

Fax: (763) 559-0108

DEVICE REPAIR

For devices in need of repair, include a description of the

problem, a copy of the purchase order and your name,

address and telephone number.

RETURN TO

Danfoss (US) Company

Return Goods Department

3500 Annapolis Lane North

Minneapolis, Minnesota 55447

EUROPE

ORDER FROM

Danfoss (Neumünster) GmbH & Co.

Customer Service Department

Krokamp 35

Postfach 2460

D-24531 Neumünster

Germany

Telephone: 49-4321-8710

Telex: (299) 708

Fax: 49-4321-871-284

BLN-95-9049

OBSOLETE PRODUCT

Danfoss MCH User guide

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