24V DC Greenhouse Roll Up Motor Controller

What the DMC-1 Does

The DMC-1 is TrolMaster's dedicated motor driver for 24V DC greenhouse roll-up curtains. It handles the full range of motor control functions a commercial curtain system requires: forward and reverse operation, controlled stopping, timeout shutoff, and overcurrent protection. These aren't software-only features — they're hardware-level protections built into the driver to guard against motor damage if a curtain jams, over-travels, or encounters unexpected resistance.

The unit accepts universal AC mains input (100–240VAC, 50/60 Hz), which it converts internally to drive 24V DC curtain motors. No-load power consumption stays under 2W at 240V input, keeping idle draw negligible across an installation with multiple units. Its RS-485 communication interface uses a 4-pin waterproof connector, providing reliable, noise-resistant digital communication back to the GCS-1 base station.

Who This Is Built For

The DMC-1 is designed for licensed cannabis and hemp operators running controlled-environment greenhouses — light-deprivation structures, hybrid light-dep/supplemental-light builds, or year-round production facilities that use 24V DC roll-up curtain motors for blackout or climate management. If your curtain system is manual or running on a basic timer today, the DMC-1 is the interface layer that puts it under centralized, sensor-triggered automation.

It pairs directly with TrolMaster's GCS-1 Green-X Greenhouse Control System, which also handles grow light scheduling, EC fan control, CO2, irrigation, and environmental sensing from a single controller. Operators already running GCS-1 can add the DMC-1 to bring curtain actuation into the same control ecosystem — no separate timers, no manual operation at every bay.

Key Features for Commercial Builds

Plug-and-play commissioning reduces install time: the unit connects to the GCS-1 via the included 12-ft RJ12 to 4-pin IP65 connector cable and is individually addressable through the controller's motor configuration menu. Multiple DMC-1 units can be deployed across a facility for zone-by-zone curtain control, each assigned independently within the GCS-1.

The IP44-rated enclosure handles the moisture and particulate exposure typical of greenhouse environments. Operating temperature range is 32–104°F (0–40°C) with up to 90% RH, covering most commercial greenhouse conditions year-round. Output wiring requires a minimum 16 AWG conductor to maintain safe current capacity to the motor load. The overcurrent and timeout shutoff functions provide a layer of protection that reduces the risk of motor burnout in unattended automated operation.

How It Fits a Greenhouse or Light-Dep Build

In a light-deprivation cannabis or hemp greenhouse, precise curtain timing is a direct production variable — early or late blackout by even a few minutes can affect photoperiod accuracy across a crop cycle. The DMC-1, operating under GCS-1 scheduling and sensor inputs (including outdoor conditions via the optional MBS-WS weather station sensor), allows curtain open/close cycles to be automated against time, light level, or temperature parameters rather than relying on manual pulls.

For operators expanding canopy or adding greenhouse structures to an existing licensed footprint, the DMC-1 and GCS-1 ecosystem provides a modular path to scale curtain automation bay by bay without replacing the control head. The GCS-1 also manages irrigation, lighting, and climate in the same interface, so the DMC-1 integrates curtain control into a unified operational picture rather than running it as a separate system. Contact HSC to discuss how the DMC-1 fits your current or planned greenhouse control build.