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Simplified Chinese Differential Receiver Module
When to Use the MASSO Differential Receiver Module
The MASSO Differential Receiver Module is used with stepper or servo motor drives that do not support differential signals.
Differential signals provide strong immunity to electromagnetic noise, which can interfere with motor control signals and cause:
Positioning errors
Unexpected axis movement
Sources such as VFD spindle drives and plasma cutting systems generate high electromagnetic noise, which can affect motor signals.
Using differential signals allows long cable runs for STEP and DIRECTION signals between MASSO and the motor drives.
Installation Guidelines
Do not mount the Differential Receiver Module next to the MASSO controller
Mount the module close to the motor drives
Distance between MASSO and the module can be up to 50 metres when using:
High-quality twisted pair cable
Uniform impedance
Low attenuation
Keep the distance between the Differential Receiver Module and the drives as short as possible
Example Drives Without Differential Support
Wiring Example with Common Negative Signal
This example shows a GECKO G203V drive that uses TTL signals with a common negative.
Mount the Differential Receiver Module close to the drives.
Wiring Example with Common Positive Signal
This example shows a GECKO G340 drive that uses TTL signals with a common positive.
The MASSO Differential Receiver Module provides 5V, so no external 5V supply is required.
Mount the Differential Receiver Module close to the drives.
Wiring Example of a 4-Wire Optically Isolated Drive
Current Sourcing Configuration
Current Sink Configuration
Mounting and Mechanical Data
