Delta RMC101 - Manual (Page 37)

RMC100 Startup Appendix A: Wiring
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Wiring the MDT Feedback Module
RMC MDT Six-Pin Plug-in Terminal Block Pin-out
Pin Function
1 MDT Axis + Interrogation
2 MDT Axis - Interrogation
3 MDT Axis Common
4 MDT Axis + Return
5 MDT Axis - Return
6 Case
The RMC can interface to Magnetorestrictive Displacement Transducers with either
single-ended (TTL) or Differential Line Driver (RS422) interrogation signals.
NOTE: The following example schematics do not include transducer pin numbers,
color codes, or power supply requirements, since these vary between different
transducers. To determine your power supply needs and connector pin-outs or cable
color codes, consult your transducer manufacturers’ documentation.
RS422 signals
• Connect both the '+Int' and '-Int' between the transducer and the RMC for the
interrogation signal, and the '+Ret' and '-Ret' between the transducer and the
RMC for the return signal.
• Connect the transducer DC ground to MDT Cmn.
Single-ended (TTL) transducers with positive interrogation
• Connect the transducer '- interrogation in' wire to the ‘MDT Cmn’ pin and the
transducer '+ interrogation in' wire to the '+ Int' pin.
• CONNECT NOTHING TO THE '-Int' PIN OF THE RMC.
• Connect the transducer return plus wire to the '+Ret’ pin on the RMC and the
transducer return common wire to ‘MDT Cmn’ on the RMC.
• CONNECT NOTHING TO THE '-Ret' PIN OF THE RMC.
Index/wiring/MDT