Mining Vehicle Traction Controls
300 VDC - 600 VDC
Solid-State - High-Voltage - IGBT Controls
Mining Industry Series: LMC-MI & MIC

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Model

Voltage

Continuous

D.C.

Motor

Braking

LMC-MI-1000

300V

140 amps

190 amps

250 amps

250 amps

LMC-MI-1010

300V

200 amps

240 amps

300 amps

250 amps

LMC-MI-1030

300V

300 amps

350 amps

450 amps

350 amps

LMC-MI-1035

300V

330 amps

400 amps

550 amps

350 amps

LMC-MI-1020T

300V

275 amps

350 amps

400 amps

500 amps

LMC-MI-1040T

300V

350 amps

480 amps

600 amps

500 amps

LMC-MI-1060T

300V

550 amps

625 amps

800 amps

700 amps

LMC-MI-1070T

300V

660 amps

720 amps

1100 amps

700 amps

LMC-MIC-1010

300V

200 amps

240 amps

300 amps

250 amps

LMC-MIC-1040ST

300V

200 amps

300 amps

400 amps

400 amps

* Ratings valid to a heat-sink temperature of 70°C (158°F)
    Add Suffix P for single-direction pump control / Suffix T denotes two-motor control

Motor Type:

Series Wound

Control Range:

0 to 100%, Plus Optional Bypass

Logic Type:

Micro Controller

Operating Frequency:

2kHz - 10kHz

Supply Voltages: 300 Volts

• Low voltage operation down to 50% of nominal supply voltage.

Safety Circuits:

• Look-ahead fault detection.
• Shorted-output device detection up to 75% on time.
• Detection of a speed-demand input-signal greater than 35% at startup.
• Open Circuit speed-demand signal detection.

Fault Indicator: Display option.

Speed Demand: Accelerator input can be a --

• 5K OHM RHEOSTAT - Max Speed at 200 OHMS
• or a 3.5 volt to a 0 volt signal - max speed at 100 MV.

Controlled Plug Braking: Programmable from 1% to 15% pulse rate.

• Braking is proportional to the accelerator position.

Current Limits: D.C. Current Limit - Programmable + 0%, -25%.

• Peak Motor Current Limit - Fixed.

Creep Speed: Programmable 0% to 20%.

Controlled Acceleration Delay: Programmable 0 to 2.5 seconds.

Programmable Speed Limit:

The motor-voltage can be limited to between 50% and 100% supply voltage. The limit switch will be normally closed.

Temperature Protection:

Proportional cut back, beginning at a thermistor temperature of 70 degrees centigrade, to a limit of 25% at 90 degrees centigrade.

Arcless Switching of the Contactors.

Contactor Drivers Included: 3.2 amps sinking.

Under Voltage Protection:

The control will shut down in an orderly manner if its control voltages cannot be maintained.

Stored Operational Fault Status: Requires hand-held data terminal to access.

Communication Port: RS232 port.

Storage Temperature
Range:

-40 C to +80 C

Operating Ambient
Range:

-30 C to +50 C

Shock Maximum:

30m/sec.sec for 10ms.

Vibration Maximum:

10m/sec.sec at 40hz

LMC™ Motor Controls Optional Software Features

Feature

Description

LMC-1

Two Locomotive Tandem Operation
(no trackside radio, rs485 wire cable connection, for motor control only)

LMC-2

Two Locomotive Tandem Operation Via Radio Modems, All Locomotive Functions & Trackside Radio Interface.

LMC-3

Overspeed Alarm*

LMC-4

Overspeed Control*
(includes LMC-3, overspeed alarm)

LMC-5

Acceleration Wheel-Spin Control**

LMC-6

Anti-Lock Braking**

LMC-7

Battery Charge Status
(includes LMC-8, low supply voltage alarm)
(operator display required)

LMC-8

Low Supply Voltage Alarm

LMC-9

Motor-Current Differential Alarm

LMC-10

Deadman-Switch Check Circuit

LMC-11

Anti Motor Stall*

LMC-12

Operator Display Software
(no display, no housing)

LMC-13

Velocity Feed Back Counter

LMC-14

Closed-Loop Speed Control

LMC-15

Trolley/Battery Combination Software

* Requires installation of one velocity feedback counter - Feature 13.

** Requires installation of two velocity feedback counters, one on each motor axle.

NOTE: Some options are mutually exclusive.