Category: Product Information

HMI-STU-855

Modicon Magelis HMI-STU-855 (HMISTU855) Product Spotlight

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The Schneider Electric / Modion HMI-STU-855 is a 5.7 inch touch panel screen with a Magelis operating system and CPU ARM9 processor. It uses a QVGA TFT color touchscreen with a pixel resolution of 320 x 240 pixels. It uses an external supply source of 24 volts and consumes 6.8 watts of power. It has 16 MB of application battery with 64 kB available to back up data. The HMISTU855 is able to download a number of protocols including Modbus, Modbus TCP/IP, Uni-TE, and 3rd party protocols.  When using the HMISTU855, all connections to the communication ports on the bottom and sides of the unit must not put large amounts of stress on the ports. Be sure to securely attach communication cables to the panel or cabinet. Use only RJ45 cables with a functioning locking tab.

Critical detected alarm indicators and systematic function require independent and redundant protection hardware or mechanical interlocks. It is important that when power is cycled, the user waits at least 10 seconds before restoring power. Switching the power on and off quickly can damage the unit. The interface is connected to remote equipment using a RS232C or RS-485 cable. The connector that is used is a RJ45-8 pin type. The using a long PLC cable to connect the unit, a difference of electric potential can be observed between the cable and the ground, even when connected to a ground. The serial port on the HMI-STU-855 is not isolated. The signal ground and frame ground terminals are connected inside the unit. When setting up the RS-485 communication, the cable diagram for some equipment may need polarization on the terminal side. This terminal does not need any special setting because it can handle polarization automatically.

MRO Electric and Supply Company stocks many Modicon Magelis HMIs and panels, including the HMI-STU-855. For for information or to request a quote, please email sales@mroelectric.com or call 800-691-8511.

HMI-STU-855
HMI-STU-855

TSX PLCs – Compact, Flexible, Cost-Effective

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TSX PLCs
TSX Nano PLCs are easy to set up and have numerous built in functions, such as memory for storing programs, battery-backed RAM, and real-time clocks for modules with 16 and 24 I/O’s. They can be installed easily on a mounting rail or base plate in the vertical or horizontal position. TSX PLCs are programmed in lists of instructions using the FTX 117 programming terminal, in Ladder or Instruction list language using software on an FT 2000, FTX 517 terminal or PC compatible. They can be used to augment extendable TSX PLCs using a single extension per base. Depending on the model they have

16 I/O : 9 inputs + 7 outputs
24 I/O : 14 inputs +10 outputs.

The following types of inputs and outputs are used:

Inputs : 24 Volts
Outputs : Relay outputs for models with ~ 100… 240 Volt power supply, transistor outputs with positive logic for models with 24 Volt power supply.

I/O Extension

Each TSX Nano base PLC can be extended using an I/O extension. This extension is created by one of the PLCs with 10, 16, or 24 i/o. The function of each PLC is defined by the position of the coding selector switch:
Position 0 : base PLC
Position 1 : I/O extension

Peer PLCs

Up to 3 peer TSX PLCs, communicating via common words, can be connected to the base PLC. In this case, only the base PLC can receieve an I/O extension. The function of each PLC is defined by the position of the coding selector switch. I/O addressing of peer PLCs is identical to that of the base TSX PLC. The extension link cable between the base PLC and PLC extensions is shielded, twisted pair  and is no more than 200 meters long.  Each PLC has 2 reserved (IW) and 2 reserved (QW) words for exchanging data between PLCs. These exchange words are updated automatically. For each PLC, the user program is only able to write to the 2 %QW output words and read the 2 %IW input words.

MRO has many Modicon PLCs available. For more information, please email sales@mroelectric.com or call 1-800-691-8511.

Simodrive 611 Power Modules – Manual Anthologies

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Simodrives 611 power modules can be used to operate the following motors: 

  • 1FT6, 1FK6 and 1FK7 servo motors 
  • 1FW6 built–in torque motors (direct drives) 
  • 1FN linear motors 
  • 1PH main spindle motors 
  • Standard induction motors; if IM operation is selected, only inverter pulse frequencies of 4 kHz and 8 kHz are permissible. 
  • 1PM hollowshaft motors for main spindle drives (direct drives) 
  • 1FE1 main spindle motors 
  • 2SP1 motor spindle 
  • Third–party motors, if according to the motor manufacturer the motor meets the requirements for sine modulation, insulation, and dV/dt resistance.

For special motors with a low leakage inductance (where the controller settings are not adequate), it may be necessary to provide a series reactor in the form of a 3–arm iron core reactor (not a Corovac reactor) and/or increase the inverter pulse frequencies of the converter. Motors with a low leakage inductance are, from experience, motors that can achieve high stator frequencies (maximum motor stator frequency > 300 Hz) or motors with a high rated current (rated current > 85 A).

A wide range of 1–axis or 2–axis power modules is available. These modules are graded according to the current ratings and can be supplied with three different cooling techniques. The current–related data refers to the series–preset values. At higher frequencies of the fundamental waves or for higher clock cycle frequencies, ambient temperatures and installation altitudes above 1000 m above sea level, power deratings apply as subsequently listed. Matched, pre–assembled cables are available to connect the motors. Ordering information is provided in the ”Motors” section of the NC 60 catalog. Shield terminal plates are available to meet EMC requirements when using shielded power cables.

The equipment bus cable is included in the scope of supply of the power module. The drive bus cables must be ordered separately for the digital system. The current data of the power modules (PM modules) are normalized values to which all of the control units refer. The output currents can be limited by the control unit being used.

MRO Electric offers both New and Remanufactured Siemens Simodrives 611. Please visit our Siemens CNC and Automation Page for more information. You may also contact sales@mroelectric.com or call 1-800-691-8511.

Siemens Simodrive 611

Siemens Simodrive 611

Industrial Legacy Systems

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Legacy Systems: Maintenance

Maintaining and upgrading legacy systems is one of the most difficult challenges industrial and manufacturing managers face today. Constant technological change often weakens the business value of legacy systems, which have been developed over the years through huge investments. Managers struggle with the problem of modernizing these systems while keeping their functionality intact. Despite their obsolescence, legacy systems continue to provide a competitive advantage through supporting unique industrial processes. Routine checks allow for preventative maintenance, and for replacement parts to be ordered before they are desperately needed. Here at MRO Electric and Supply, we stock a large number of classic and legacy products which can be shipped in record time.

Legacy Systems: IoT

When new technologies arise, engineers simply cannot uproot existing systems. However, some legacy controls can be connected to the Internet of Things. This allows for a high level of data acquisition which can be stored, processed, and analyzed. Several IoT products can also support remote monitoring and control. Many Modicon Quantum Series products have an Ethernet port that allows for this upgraded connectivity. However, not every legacy system has these capabilities.

Legacy Systems: Security

Targeted attacks on industrial systems always remain a threat as our society plows forward into the computer-driven Information Age. Securing legacy systems that were designed to communicate point to point is a enormous challenge. Many of these older systems were installed pre-internet era, are not designed for connectivity, and have no means of authenticated commands that are received. System interruptions for security updates can be difficult and costly, and downtime is expensive. It is always a challenge to find ways to increase security for legacy systems. One important tip is to always keep the software for connected legacy systems updated with the most current version.

Legacy Systems: Looking Forward

Although replacement supplies and remanufactured parts can be ordered for many years to come, it is important to keep in mind that no legacy system will last forever. In this current sluggish world economy, often the best answer is a well-planned, slow and steady upgrade.

If you need a replacement part for any of your industrial classic or legacy systems, please email sales@MROElectric.com or call 1-800-691-8511.

A06B-6058-H005: Beyond the User Manual

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A06B-6058-H005: Beyond the User Manual

Generally, Fanuc AC servo motors, like the A06B-6058-H005, have no parts that wear off or that must be replaced periodically, unlike DC servo motors, which have brushes that must be replaced. However, you should perform period maintenance for servo motors so as to keep their initial performance as long as possible and to prevent breakdowns. AC servo motors have precision sensors — their incorrect use or damage caused during transportation or assembling can result in breakdowns or accidents.

It is recommended that you inspect servo motors periodically, and of course we offer a 12 month warranty on all Fanuc products purchased from MRO Electric.

Receiving and Keeping the A06B-6058-H005

When you receive a A06B-6058-H005 module from MRO Electric, make sure that the motor is exactly the one you ordered, in terms of model, shaft, and sensor specifications, and make sure that no damage has been caused on the motor. Servo motors should be kept indoors as a rule. The storage temperature range is -20 to +60 Celsius. Do not place or install AC servo motors in a place where it is extremely humid and dew is prone to form, where there are steep changes in temperature, where there is constant vibration, or there is lots of dust and trash. Constant vibration may cause damage to the shaft bearings.

Daily Inspection Procedures

Before starting operation, or periodically (once a week or month), you should inspect the AC servo motors for vibration and noise, outside damage, stains and smudges, overheating.

Check the motor for abnormal vibration by hand, and noise by ear when the motor is not rotating, rotating at low speed, and accelerating and decelerating.

Check the Pulsecoding cover (read plastic) for crevices and the motor surface (black coating) for scratches and cracks. If you find a crevice on the Pulsecoder cover, you should replace it. If there is a scratch or a crack on the motor surface, the user should repair it by himself as required. If coating has come off, dry the portion of interest or the entire surface and coat it with paint for machines such as urethane paint.

Check the motor surface and bolt holes for oil or cutting fluid. Wipe off oil and cutting fluid on the surface periodically. Oil or cutting fluid can damage the coating by chemical reaction, possibly leading to failure. Also check how such liquid leaks onto the motor, and repair if needed.

Check to see if the motor is too hot during normal operation. Attach a thermolabel on the motor surface and check it visually to see if the motor becomes too hot during normal operation.

Visit our A06B-6058-H005 product page for more information, or to request a quote email sales@MROElectric.com or call 1-800-691-8511

a06b-6058-h005
a06b-6058-h005

UNI3405: Beyond the User Manual Parameters

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The UNI3405 Unidrive is part of the Classic Unidrive series. Control Techniques introduced the Unidrive Classic around 1993 in Europe and approximately 1995 in the Americas. Because the Unidrive Classic ran simple Open Loop, Closed Loop Vector, and Servo motor applications as well as offering a Regen mode, the UNI3405 found its way into a great many industrial applications, from simple to quote complex. Visit our website to checkout all of our Control Techniques products.

Due to its status as a legacy product, the UNI3405 is becoming available only in limited quantities.

The UNI3405 contains approximately 500-600 parameters that help machine manufacturers achieve the desired functionality for a certain machine requirement. Some applications may require 20-30 or more parameters to be changed from the drives factory default settings. Should drive replacement become necessary, one must have a complete and accurate list of these parameters so that the original functionality can be restored. If you do not have a list of the required parameters, one could copy down these parameters manual. This is assuming that the drive still works enough to power the display, and even then the manual copying of parameters is tedious and error prone.

For more info you can visit our product page here. You can get price and availability by emailing sales@mroelectric.com or calling 1-800-691-8511.

UNI3405
UNI3405

UD75: Beyond the User Manual

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The UD75 CTnet Interface card for the Unidrive Classic series is supplied in a large option module. It is an add-on card for the UD70 applications card. The UD70 processor and operating system handles all network activity, and uses a dual-port RAM interface to transfer data between itself and the drive.

The UD70 CTnet retains full functionality, allowing the user to download normal DPL application programs. No program modifications are required to allow existing DPL programs to run. A different UD70 operating system file (“UD70NET.SYS”) is used, and the UD70 has this system file pre-loaded.

The Unidrive must be disconnected from the mains supply before installing or removing any option module, including the UD75.

Isolate the drive from the mains supply and allow 5 minute for the DC bus capacitors to discharge. Insert the large option module. Ensure that it is correctly inserted. The module will click firmly into place. To remove the module, pull on the black tab and the module will disengage from the connector and pull out of the drive.

For more info you can visit the UD75 product page here. For price and ordering info you can email sales@mroelectric.com or call 1-800-691-8511. We have these and all the other Unidrive Classic option modules in stock, along with the drives themselves.

UD75
UD75 CTnet