Motor Controller

Understanding Motor Controllers

Motor controllers are essential for safe and efficient rigging operations. Understanding controller capabilities helps specify appropriate systems for LED wall installations.

Controller Types

**Simple Pendant:**

• Single motor control
• Basic up/down function
• Limited features
• Entry-level operations

**Multi-Motor Controller:**

• Multiple channels
• Grouping capabilities
• Synchronized movement
• Professional standard

**Network/Distributed:**

• Computer-based control
• Many motor support
• Advanced features
• Large installations

Key Functions

**Movement Control:**

• Up/down operation
• Variable speed (some)
• Synchronized operation
• Group control

**Safety Functions:**

• Emergency stop (E-stop)
• Overload protection
• Upper/lower limits
• Status indication

**Advanced Functions:**

• Position presets
• Load monitoring
• Speed control
• Network integration

Synchronization

**Why It Matters:** LED walls must move evenly:

• Prevents racking damage
• Maintains alignment
• Reduces stress on panels

**How It Works:**

• Same start/stop timing
• Matched speeds
• Continuous feedback (advanced)

Load Monitoring

**Simple:**

• Current monitoring
• Overload trip
• Basic protection

**Advanced:**

• Load cells at each point
• Real-time weight display
• Logging and alerts
• Pre-lift weight verification

Channel Configuration

**Individual:** Each motor on separate channel:

• Maximum flexibility
• Individual control
• More complex operation

**Grouped:** Multiple motors linked:

• Synchronized movement
• Simplified operation
• Common for LED walls

**Presets:** Saved positions:

• Trim height
• Show position
• Storage position

Control Methods

**Wired:**

• Reliable
• No interference
• Cable management required

**Wireless:**

• Flexibility
• Range limitations
• Interference possible
• Backup recommended

Safety Systems

**Emergency Stop:**

• All motors stop immediately
• Red mushroom button
• Multiple locations
• Reset required to resume

**Limit Switches:**

• Prevent over-travel
• Upper and lower limits
• May be on motor or controller

**Overload Protection:**

• Trips if exceeded
• Protects equipment
• Alerts operator

Specification Considerations

**Number of Channels:** Match to motor count with growth room.

**Load Capacity:** Match to motor ratings.

**Features Required:**

• Synchronization (essential for LED)
• Load monitoring (recommended)
• Presets (convenient)
• Network (large installs)

Operation Best Practices

**Pre-Flight Checks:**

• Verify all connections
• Test E-stop
• Check limits
• Confirm synchronized

**During Operation:**

• Watch load evenly
• Monitor for unusual sounds
• Ready at E-stop
• Clear area below

**Documentation:**

• Log operations
• Note issues
• Track maintenance