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Article · Rigging Updated 12 May 2026
Rigging Hoist control

5 features of a safe, compliant hoist controller.

Two hoist controllers can look identical on the outside and behave very differently when it comes to safety. Here is what matters long before you press GO.

Topic
Rigging · Hoist control
Reading
7 minutes
Audience
Technical & production managers
Scroll
At a glance
01 The brain

The controller, not the motor, decides how safely a hoist behaves. From the outside, most look identical.

02 Why it matters

Features beat price. The controller governs phase tolerance, interlocks, the E-Stop, feedback and support.

03 The five

Phase detection, hoist monitoring and interlocks, a compliant E-Stop, clear feedback, and documentation and support.

04 Where Atlas fits

Atlas Basic, Pro and Smart. Designed, built and supported in Australia.

A safe controller protects people first, equipment second, and the show always.
TSA technical team- from the rigging floor Voice from the workshop
The brain of the system

What happens at the motor is only as safe as the controller driving it.

From the outside, most fixed-speed controllers look identical. Same buttons, same case, same cables. That is where venues get caught out, because inside those boxes the difference between a safe controller and a risky one can be significant.

A controller is not a switchboard for hoists. It is the brain of the system. Across schools, community theatres, rental companies and commercial venues we see the same assumption: the unit powers on, so people take it as compliant. Look closer and the story can change quickly. A controller decides far more than whether the motor turns. It governs:

  • How safely the hoists operate
  • How well the system tolerates wiring and phase issues
  • Whether it meets Australian safety requirements
  • How easily faults can be diagnosed
  • How reliably it performs under real conditions
Two chain hoists flown in the overhead grid above a red-seated auditorium, chains dropping toward the stage.
Chain hoists flown over a full house. Every one is only as safe as the controller driving it.

These are not optional extras. They are the fundamentals of safe lifting, and they are what separate a compliant, performance-ready controller from a look-alike.

01 Phase power

Phase detection and phase alignment.

Three-phase power is not consistent across venues. Plug into a different distro, generator or building and the rotation can flip. Without phase awareness, a controller can energise the hoists with reversed rotation, sending a load up when the operator presses down and bypassing limits set for the original direction. That is not an inconvenience. It is dangerous.

A safe controller makes the rotation predictable. Look for one of two things:

  • Automatic phase-reversal detection that holds movement until rotation is corrected
  • Or a clear, labelled manual phase correction on the input side

Either approach keeps behaviour predictable when power sources change or operators rotate through a show. Our Atlas controllers carry automatic phase detection across the range.

02 Interlocks

Hoist monitoring and safe interlocks.

Close-up of an EXE chain hoist with power cable and chain bag rigged to overhead steel.
The hoist signals a compliant controller checks before it allows a single link of travel: brake, thermal and limit.

This is one of the most important, and most misunderstood, safety functions in a controller. A compliant unit verifies the essential hoist signals before it allows movement, so it cannot energise a hoist that is not connected, not healthy, or not in the right state. A safe system should ensure:

  • Every required hoist signal is present before motion - thermal OK, brake OK, limit circuit closed
  • No power reaches a hoist if any safety signal is missing
  • An unexpected signal triggers a safe stop
  • The operator cannot override or bypass the interlocks

When the interlocks work, the system refuses to move under unsafe conditions. That means fewer near-misses, fewer damaged hoists, and far less risk of uncontrolled motion.

03 Emergency stop

A compliant emergency stop.

Not all emergency stops behave the same, and in lifting the stakes are higher. Some low-cost controllers only drop power when you hit the mushroom. It looks similar on the surface, but it is not the same level of protection, and it may not meet Australian requirements. A compliant E-Stop uses:

  • Dual-channel E-Stop circuitry
  • A safety-rated relay suited to the application
  • Proper isolation of the control voltage

A compliant E-Stop shuts the system down safely and predictably, without creating new hazards. If the safety category or rating is not stated on the spec sheet, treat it as not engineered.

04 Operator feedback

Clear feedback and operator indicators.

When operators work quickly during bump-ins, resets or touring rig changes, clarity matters. A controller that hides faults behind one blinking light forces the crew to guess. Useful feedback includes:

  • Direction indicators
  • Fault indicators
  • Phase status
  • Active channel indicators
  • Encoder or load information where appropriate
Atlas chain hoist controller and pendant on road cases backstage.
Phase, supply and per-channel status on the control surface, with the E-Stop in reach.

Clear feedback supports safer operation, faster troubleshooting and cleaner handovers between crews.

05 Support & service

Documentation, warranty and local support.

A safe controller is not judged only on day one. It is also about how well it can be serviced, repaired and supported across its whole life. A reliable controller includes:

  • Installation and setup guidance
  • Service and maintenance support
  • A meaningful warranty
  • Local technicians who can repair the unit

This is where many imported OEM controllers fall short. Without local documentation, parts or support, small issues become major problems. Australian-designed controllers are generally easier to maintain, because they are built for Australian power, conditions and venues.

Why it matters

Safe, compliant and built to last.

Get these five right and you have more than a unit that powers on. You have a system the whole venue can rely on.

01

Safety

Performers, operators and crew protected first.

02

Compliance

Aligned with Australian standards and audit expectations.

03

Reliability

Holds up through shows, changeovers and daily use.

04

Usability

Clear control that reduces mistakes and downtime.

05

Longevity

Built to deliver value across its whole service life.

Where Atlas fits

Designed for theatres. Supported in Australia.

Wide view of an arena roof packed with overhead truss, rigging and flown equipment above a full crowd.
Overhead rig in a full arena. Atlas controllers run the hoists that put it there.

Atlas hoist controllers were developed through ongoing work with technicians, venue operators and touring crews across Australia. They carry the features above because they were built in response to real problems on real rigs: designed and manufactured in Australia, tested in live theatre, and supported locally by our team. The range runs from Basic to Pro to Smart, with a Toggle variant for per-channel direction.

Four models. One safety chain.

Atlas Basic ECHC chain hoist controller
ECHC · Fixed-speed

Basic

4 to 16 channels, manual phase, lightweight chassis. Schools, hire stock and smaller venues.

Popular choice
Atlas Pro PCHC chain hoist controller
PCHC · Position-ready

Pro

8 to 24 channels, auto phase detection, Bump Mode and an E-Stop designed to AS 4024 Category 3 (SIL2).

Atlas Toggle TSCHC chain hoist controller
TSCHC · Per-channel

Toggle

8 channels, each latching up or down on its own. Multi-direction scene moves and complex hoist plots.

Atlas Smart SCHC touchscreen chain hoist controller
SCHC · Monitored

Smart

Touchscreen with optional encoder and load-cell modules. Position memory, live load, networks up to 12.

Touring crews land on Pro most often. Basic for schools, Toggle for multi-direction moves, Smart for cue-driven rigs. Every model shares 24V SELV control and Wieland 6-pole connectors, so you can mix them on one system.

A hoist controller is not a box with buttons. It is the backbone of your lifting system and one of the most important tools for keeping people and equipment safe. If you want help choosing a safe, compliant controller for your venue, our rigging team is here.