Choose the sensor module from the encoder’s electrical output, not merely from its incremental measurement function. A sinusoidal 1 Vpp encoder connects to an SMC20; a square-wave TTL or HTL encoder connects to an SMC30. The supplied evidence explicitly states that a 1 Vpp encoder cannot connect directly to an SMC30.
Distinguish 1 Vpp, TTL, and HTL Outputs
A 1 Vpp encoder produces sinusoidal output signals with a stated peak-to-peak amplitude of 1 V. TTL and HTL encoders produce square-wave signals. The evidence associates square-wave outputs with 5 V or 24 V depending on the supply, but it does not map each voltage conclusively to TTL or HTL. Confirm the encoder’s named interface and electrical specification instead of selecting from voltage alone.
| Encoder interface | Waveform | Evidence-stated level | Sensor module |
|---|---|---|---|
| 1 Vpp | Sinusoidal | 1 V peak-to-peak | SMC20 |
| TTL | Square wave | 5 V or 24 V depending on supply; exact mapping is not established | SMC30 |
| HTL | Square wave | Not independently specified | SMC30 |
Select the Correct Sensor Module
Use the SMC20 for incremental encoders identified as sine-wave 1 Vpp devices. Use the SMC30 for incremental encoders identified as TTL or HTL devices. Do not treat the modules as interchangeable signal converters: the available evidence excludes direct 1 Vpp operation on the SMC30.
Verify Compatibility Before Connection
- Read the encoder documentation or nameplate and identify the interface explicitly as 1 Vpp, TTL, or HTL.
- Confirm the waveform: sinusoidal for 1 Vpp or square wave for TTL/HTL.
- Match 1 Vpp to SMC20, or TTL/HTL to SMC30.
- If the documentation gives only a voltage or supply value, obtain the complete output-interface specification before wiring; voltage alone does not resolve the TTL-versus-HTL ambiguity in the evidence.
FAQ
Can I connect a 1 Vpp encoder to an SMC30?
No. The supplied compatibility information explicitly excludes 1 Vpp encoders from direct connection to the SMC30; use an SMC20 for the stated 1 Vpp interface.
Which encoder signals connect to an SMC30?
Connect incremental encoders identified as TTL or HTL, both described here as square-wave interfaces, to the SMC30.
How do I identify a 1 Vpp encoder?
Verify that the encoder specification names a sinusoidal output with an amplitude of 1 V peak-to-peak. Match that interface to the SMC20.