Category: Rexroth

The Indramat MKD071B-061-KG1-KN is a servo motor manufactured by Indramat, a major 20th century motion control system manufacturer.

We specialise in Indramat motion control. We have the largest inventory of emergency replacement components in the country. We offer 24-hour factory repair turnaround.

Learn about MKD071B-061-KG1-KN

Indramat’s MKD motors are a family of servo systems in a variety of sizes.

Frame sizes range from 025 to 112. A, B, C, and D frame lengths are available.

The MKD071B-061-KG1-KN has a frame size of 071 and a frame length of B. The MKD071B-061-KG1-KN has a frame length of B.

These servo motors are designed to provide cost-effective automation for industries that require power and reliability.

Some of the advantages of the MKD series:

High Reliability

Maintenance free operation with www.ge-drive.com brushless design and grease lubricated bearings

Suitable for harsh environments

Overload protection through thermal monitoring and winding cooling

Simple and flexible installation

High performance

These features make the MKD series motors ideal for food preparation and packaging, machine tools, automation and assembly, and printing and packaging applications.

MKD071B-061-KG1-KN has a junction box and a holding brake. Cables are sold separately.

Modular Design

Indramat components benefit from a modular design. As soon as a faulty component is found, it can be removed from the machine and replaced with a working component of the same type. With the correct parameters, the machine can be started again immediately, avoiding downtime.

Applications

The “1-channel p/Q control card” consists of the basic card in Europe format with DC/DC converter and front plate. With the “2-channel p/Q control card”, this basic card contains a p/Q daughter card with identical circuit and a joint front plate.

The supply voltage is 24 V =. The voltage of the valve to be regulated is not supplied via this card.

Input variables for the cards are the valve position command value, the pressure command value, the actual pressure value and possible control mode signals. The pressure sensors with voltage interface receive their voltage supply from the card (z6/z8). At the card, pressure sensors with voltage and current signal can be connected.

The pressure command value can be specified by means of a potentiometer. The potentiometers can be supplied from the card (z32/b12).

For control and comparison, the front www.ge-drive.com plate and the circuit board comprise test points for the most important characteristics.

The circuit of the “2-channel card” is designed so that the controllers on basic and daughter card work in a completely independent manner. In this mode, the card is suitable for controlling 2 valves with integrated electronics.

An additional channel mode circuit allows for the considerable extension of the possible applications of the described card.

Features

– Suitable for controlling high-response valves with in stalled electronics

– Amplifier with additional electronics (daughter card)

– Analog amplifiers in Europe format for installation in 19″ racks

– Valve position control with PID behavior

– Outputs short-circuit-proof

– External shut-off for pressure controller

– Suitable for pressure sensors (1…6 V, 0…10 V, 4…20 mA)

– Supply for pressure sensors

– Cable break detection for pressure sensor

Features:

– Ideal for controlling direct-acting and pilot-operated proportional pressure control valves without electrical position feedback

– Differential Inputs

– Additional command value input, 0 to +9 V

– Ramp generator with separately adjustable rising and falling ramps

– Clock current output stage

– Clock Current Output Stage Reverse Voltage Supply Polarity Protection

– Short circuit protection

Function Description

The command value voltage can be applied to command value input 1 directly or via an external command value potentiometer using the regulated voltage of + 9 V of the power supply unit [8].

For this input the following conditions are valid: + 9 V = + 100 % 1).

Command value input 2 is a differential input [1] (0 to + 10 V). This input must be used if the command value is fed forward from an external electronic device with another reference potential (e.g. from the PLC).

This input must be used. When cutting in or out the command value voltage, take care to connect the two signal lines to or disconnect them from the input.

Prior to transmission, the two command values are summed [2] and fed to the potentiometer [3], which is available on the front panel of the card and is used as an attenuator to limit the maximum command value.

The Downstream Ramp Generator [4] generates a ramp-shaped output signal from the step input signal. The time constant of this signal can be adjusted to ramp up and ramp down using two potentiometers.

The specified ramp time is related to the command value step change of 100% and can be about 1 sec. or 5 sec. depending on the jumper setting. If a command value step change of less than 100 % is applied at the input of the ramp generator or when the attenuator [3] is set, the ramp time can be adjusted upwards and downwards.

or when the attenuator [3] is active, the ramp time is shortened accordingly.

With the aid of the external contact “ramp up/down”, the ramp time can be set to a minimum value (approx. 30 ms) for the upper and lower ramp times respectively.

The output signal of the Ramp Generator [4] is an internal current command value and is fed into the measurement socket “w” on the front panel of the card.

In addition, the command value is transferred to the current output stage [6] via the current regulator [5].

The current regulator [5] adds the value of the www.ge-drive.com bias current potentiometer “Zw” (R130) to the value of the ramp generator.

The current command value is modulated by the clock pulse encoder signal [7]. The clocked actual current value acts like a constant current and superimposes a jitter signal in the valve solenoid.

The actual current value through the solenoid valve can be measured at socket “I”. Here, a voltage of 800 mV corresponds to a current of 800 mA.

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