Overheating protection using the motor's thermistor
R.T. Gilman’ Mech-Tronix (MT) series spindle drives are general purpose, microprocessor-based, software-controlled units representing significant advances in AC drive technology. Design features include comprehensive operator control and programming panel for digital setup, troubleshooting and self-diagnostics. Optional capabilities include remote interrogation, digital speed input and serial communication for direct control by programmable logic controllers and computers.
The MT series spindle drive uses sensorless torque control (encoderless) for improved torque control over the rated speed range.
The R.T. Gilman’ MT series spindle drive provides a wide range of adjustable speed control of conventional AC induction motors in applications exhibiting a variety of load characteristics. The unit converts the fixed frequency and voltage of the AC line power source to a sine-coded Pulse Width Modulated (PWM) adjustable voltage and frequency output that will control induction motors over a wide speed range.
Drives are designed and manufactured to comply with applicable standards established by the National Electric Code and NEMA for industrial motor and control equipment. They are UL listed and CE compliant.
The following table describes the AC drives applicable to the standard R.T. Gilman’ Mech-Tronix integral motor spindles.
TELC chillers
Spindle coolant chiller
The following table designates the model numbers for R.T. Gilman’ chillers for use with liquid-cooled (TELC) spindles.
Cooling system requirements:
- Not to exceed 60 PSI
- Input temperature is 80°F (27°C)
- Maximum temperature rise is 20°F (11°C) from spindle inlet to outlet
- Have a 100 micron filter or better
Standard coolant union – low speed
Coolant union notes:
10,000 rpm maximum
Filtration 10 micron
160°F (71°C) maximum temperature
Maximum flow rate 13 GPM
Do not run dry
Coolant connection must not produce
radial or axial loads on the coolant union
Alternate coolant union for spindle rpm over 10,000 Coolant union notes:
15,000 rpm maximum
Filtration 10 micron
160°F (71°C) maximum temperature
Maximum flow rate 13 GPM
Do not run dry
Coolant connection must not produce
radial or axial loads on the coolant union
Conduit box kit
Satisfies the requirement for liquid-tight seal. Allows for ease of making electrical connections. If conduit box is not purchased, customer is responsible for providing a "liquid-tight seal."
Jack block kit
Manual draw bar kit
V-Flange nose kit
HSK T-wrench
Thrust keyway alteration
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TELC chillers
