Delta RMC151 - Manual (Page 1154)

RMC70/150 and RMCTools User Manual
11 -Ret/Data Ret/Dat-
12 Case Case Connected to RMC Chassis
The commons are internally connected.
MDT Wiring (see below for SSI)
The MAx modules interface only to transducers with Differential Line Driver (RS422)
signals. Single-ended (TTL) transducers are not supported due to low noise immunity.
MDT transducers connect to the following MAx pins:
Pin Function Additional Possible Manufacturer Designation
Int/Clk + MDT + Interrogation Interrogate + Input
Int/Clk - MDT - Interrogation Interrogate - Input
Cmn
MDT Common
Ret/Dat + MDT + Return Pulse + Output
Ret/Dat - MDT - Return Pulse - Output
Case RMC70 Chassis
Wiring instructions:
• Connect the '+Int' and '-Int' between the transducer and the MA module for the
interrogation signal.
• Connect the '+Ret' and '-Ret' between the transducer and the MA module for the
return signal.
• Connect the transducer DC ground to Cmn. Each axis has two Cmn pins. Either of the
2 pins may be used. The Cmn must be connected to the transducer, or the signals will
not be read correctly!
• The transducer power supply is not provided by the RMC. The user must supply a
power supply. The power supply common may be connected to the same common that
is connected to the RMC70 CPU Cmn.
Diagram
SSI Wiring
SSI uses differential line driver (RS422) clock and data signals. Connect the transducer
DC ground to SSI Cmn. SSI transducers connect to the following MAx pins:
1134 Delta Computer Systems, Inc.