Danfoss MCW100A Time Proportional Rotary Position Controller User Guide

Danfoss MCW100A Time Proportional Rotary Position Controller User Guide

DESCRIPTION

The MCW100 Time Proportional Rotary Position Controller provides automatic grade or steering control of paving, trenching and curbing machines by
switching an on/off solenoid valve. The Controller uses a wand follower to sense the grade level or steering command from a stringline or surface. Two modules are housed in the case of the Controller. The grade sensing module electromagnetically measures the deviation between the true grade of the machine through the follower. The amplifier module receives the signal from the sensor module and produces a voltage output to drive solenoid valves which, on a typical paving machine, operate lift cylinders. Within the
amplifier’s proportional band, the percent of time the output is on is proportional to the grade error.
The MCW100A and B are the same with three exceptions: First, the “A” unit is switched on the hot side while the “B” unit is switched on the ground side.
Second the “A” has an internal grade/slope switch that the “B” does not have.
Third, on the “A” model the deadband adjustment is a multiple turn trim potentiometer and on the “B” model it is a single turn trim potentiometer.

FEATURES

• May be mounted on either side of machine
• Adjustable tracking force
• Rugged aluminum housing
• Adjustable deadband varies sensitivity
• RUN/STANDBY switch permits operator to switch to manual control
• Dual UP/DOWN lamps show deviation from setpoint in RUN and STANDBY modes
• Reverse polarity and short circuit protected
• Moisture and corrosion resistant
• Withstands vibration and shock
• Models for both 12 and 24 Volt systems

ORDERING INFORMATION

SPECIFY

1. Model Number MCW100A or B
2. Voltage, 12 or 24 Vdc
3. Cable Part Number
4. Follower Part Number(s)

TABLE A.

ACCESSORIES

1. STEERING FOLLOWER
   Straight tubular follower, 16 inches long overall with breakaway joint. For steering only. Part Number KG07002.

2. RIGHT ANGLE GRADE FOLLOWER
   With breakaway joint. For grade applications only. Follows a stringline. Also used with skate assembly, or skate and ski assembly for following hard reference surface. Part Number KG04003.

3. RIGHT ANGLE GRADE FOLLOWER LESS SENSING ARM
   For grade applications utilizing the skate and/or skate and ski assemblies. Same as Part Number KG04003 above, but without the sensing arm and breakaway joint. Part Number K09274.

4. SKATE ASSEMBLY
   For grade applications. Use with right angle grade follower (Part Number K09274) on hard reference surface.
   Part Number KG06001.

5. SKI ASSEMBLY
   For grade applications. Used with right angle grade follower (Part Number K09274), and skate assembly (Part Number KG06001) on hard reference surface. Part Number KG02001.

6. CABLE ASSEMBLY
   KW01015 two-foot coiled cable that extends to ten feet (3 meters). Has right angle connector on one end, and straight connector on the other end to make connections between the MCW100 and Bendix Type No.
   MS3102A18-1P plug. (Part Number K03989.)

BLOCK DIAGRAM: High Side Switching

DIMENSIONS

Approximate Dimensions of the MCW100 in Millimeters (Inches).

TECHNICAL DATA

ELECTRICAL

OPERATING VOLTAGE
12 Volt Model: 11 to 15 Vdc
24 Volt Model: 22 to 30 Vdc
SUPPLY CURRENT
0.6 amps maximum, not including output current to the valve
MAXIMUM VOLTAGE DROP (3 amp LOAD CURRENT)
3.5 Vdc
CURRENT OUTPUT
3 amps, maximum
REVERSE POLARITY PROTECTION
200 Vdc maximum
SHORT CIRCUIT PROTECTION
Full, with 0.5 ohm maximum resistance

CONNECTION DIAGRAM MCW100A

Typical Wiring Diagram for MCW100A Rotary Position and MCW101A Level Controls. Rotary Position and Level Controllers May Be Interchanged.

CONNECTION DIAGRAM MCW100B

Typical Wiring Diagram for MCW100B Rotary Position and MCW101B Level Controls. Rotary Position and Level Controllers May Be Interchanged.

CUSTOMER SERVICE

NORTH AMERICA

ORDER FROM

Danfoss (US) Company
Customer Service Department
3500 Annapolis Lane North
Minneapolis, Minnesota 55447
Phone: 763-509-2084
Fax: 763-559-0108

DEVICE REPAIR

For devices in need of repair or evaluation, include a description of the problem and what work you believe needs to be done, along with 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.
Order Entry Department
Krokamp 35
Postfach 2460
D-24531 Neumünster
Germany
Phone: 49-4321-8710
Fax: 49-4321-871-184

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