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Frequency Converters, Motor Drives & Military UPS Systems

Mil-Drive HCU-400 Military Pendant Control Unit — Tethered Hand Controller with Emergency Stop and Status LEDs

Model

Mil-Drive HCU-400

Part number (P/N)

TDG-042-01-A0000

Compatible unit

Mil-Drive MCU-400 military motor control unit (KN5 controller connector)

Controls

Pendant power switch · guarded raise / lower switch · emergency stop · fault reset · LED test

Indicators

System power · system fault · up position · down position · ready to move; blackout mode

Power supply

28 VDC, supplied by the MCU-400 (no separate supply needed)

Communication

RS-485 with the MCU-400 main board

Connector

MIL-DTL-38999 Series III, 24WA35PN

Cable

TDG-042-02-xx; 5 m standard, other lengths on request

Ingress protection

IP67

MIL-STD-810H (Environmental)MIL-STD-461F (EMI/EMC)

Company:ITAR-FreeNCAGE: TM885

Overview

Product and Purpose

Mil-Drive HCU-400 is a military pendant control unit: a tethered hand controller that connects by cable to the Mil-Drive MCU-400 military motor control unit and is used in the field. The operator runs the mechanism one-handed with raise and lower commands, reaches the emergency stop instantly and follows system status on the LEDs.

Power and communication come from the main unit through a single MIL-DTL-38999 connector and cable; no separate power supply is needed. The pendant is designed and manufactured by TEDEG in Ankara; the photos show a pre-production unit.

Engineering Capability and Technology

When the pendant is switched on, command priority passes to it automatically; when it is off, commands come from the system control panel (RS-485) or the web interface. The raise / lower switch is guarded and momentary: one press starts travel, a second press stops it, and travel stops automatically when the mechanism reaches its limit switch. The emergency stop cuts the motor outputs instantly while control and communication stay on.

The enclosure is CNC-machined aluminium (EN-AW 5754) with MIL-C-5541E Type I chromate conversion coating and MIL-DTL-64159 compatible military paint; ingress protection is IP67.

Specifications:

ParameterValue
Compatible unitMil-Drive MCU-400 military motor control unit (KN5 controller connector)
Power28 VDC, supplied by the MCU-400 (no separate supply needed)
CommunicationRS-485 with the MCU-400 main board
Command priorityPendant when on; otherwise system control panel (RS-485) or web interface
ConnectorMIL-DTL-38999 Series III, 24WA35PN
CableTDG-042-02-xx; 5 m standard, other lengths on request
Dimensions138 × 85 × 51 mm (excluding buttons, switches and connector)
Weight0.65 kg (excluding cable)
EnclosureCNC-machined aluminium (EN-AW 5754); MIL-C-5541E Type I chromate conversion coating
PaintMIL-DTL-64159 compatible military paint: Green 383 (FED-STD-595B 34094) standard; Tan 686A (33446) and Earth Yellow (33245) optional
Ingress protectionIP67
Operating / storage temperature−35 °C … +50 °C / −45 °C … +65 °C (designed to MIL-STD-810H)
EMCDesigned to MIL-STD-461F (with the MCU-400 system)
Material restrictionsFree of cadmium, mercury, asbestos and PCB

Front Panel Controls

ControlFunction
Pendant power switchPowers the pendant and takes command priority
Raise / lower switchGuarded, momentary; one press starts travel, a second press stops it; travel stops automatically at the limit switch
Emergency stopCuts the motor outputs instantly; control and communication stay on
Fault resetClears resolved faults
LEDsSystem power · system fault · up position · down position · ready to move
LED test and blackoutChecks that all LEDs work; LEDs can be dimmed for night operation

Typical Application Scenarios

  • Mast and platform mechanisms: raise and lower operated in the field, next to the mechanism
  • Platform leveling and lifting systems: position and "ready to move" status in the operator's hand
  • Shelter and vehicle-mounted systems: main unit indoors or on the vehicle, operator up to a cable length away
  • Spare or second pendant: ordered separately for existing MCU-400 installations

Compatibility and Ordering Code

HCU-400 connects to the KN5 controller connector of the Mil-Drive MCU-400. It ships with the MCU-400 when ordered with the -H option, and can also be ordered separately as a spare or second pendant.

Ordering code: HCU-400-Cxx-p — xx cable length in metres (standard C05, P/N TDG-042-02-xx), p paint code (0 = military green Green 383, 1 = tan Tan 686A, 2 = earth yellow Earth Yellow). Example: HCU-400-C05-0: 5 m cable, military green.

The TEDEG Advantage

HCU-400 and MCU-400 are designed together by TEDEG: one cable carries both the 28 VDC supply and RS-485 communication, command priority is managed automatically in the main unit, and the pendant LEDs show the main unit's interlock and limit chain directly. All products are in the Frequency Converters, Motor Drives & Military UPS Systems category; use the quote form for project-specific cable lengths and paint.

Specifications

ModelMil-Drive HCU-400
Part number (P/N)TDG-042-01-A0000
Compatible unitMil-Drive MCU-400 military motor control unit (KN5 controller connector)
ControlsPendant power switch · guarded raise / lower switch · emergency stop · fault reset · LED test
IndicatorsSystem power · system fault · up position · down position · ready to move; blackout mode
Power supply28 VDC, supplied by the MCU-400 (no separate supply needed)
CommunicationRS-485 with the MCU-400 main board
ConnectorMIL-DTL-38999 Series III, 24WA35PN
CableTDG-042-02-xx; 5 m standard, other lengths on request
Ingress protectionIP67
Operating temperature−35 °C … +50 °C
Dimensions138 × 85 × 51 mm (excluding buttons, switches and connector)
Weight0.65 kg (excluding cable)

MIL-STD Compliance

MIL-STD-810H

Environmental

MIL-STD-461F

EMI/EMC

See Certifications & Quality for our test and validation approach, and our Test & Validation service for programme-specific testing.

Datasheet

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To see all products in one file, open the Product Catalogue 2026 (PDF).

FAQ

Does it need a separate power supply?+

No. The pendant takes its 28 VDC supply from the MCU-400 through the cable; the same cable carries RS-485 communication.

Can commands come from elsewhere while the pendant is on?+

While the pendant is on, it has command priority. When it is switched off, command passes to the system control panel (RS-485), or to the web interface if there is no panel.

What does the emergency stop cut?+

It cuts the motor outputs instantly. The control board and communication stay on; once the fault is cleared, fault reset returns the system to ready.

What do the LEDs show?+

System power, system fault, up position, down position and ready to move. LED test checks that every LED works; blackout mode is for night operation.

Can the cable length be chosen?+

5 m is standard; other lengths on request. The cable can also be supplied separately under its own part number (TDG-042-02-xx).

Does it work with other units?+

HCU-400 is designed for the Mil-Drive MCU-400 military motor control unit and connects to its KN5 connector.