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Machine Guard MG4-REF11 A
SPM Instrument AB
• Box 504 • SE-645 25 Strängnäs • Sweden
Technical data are subject to change without notice.
Tel +46 152 225 00 • Fax +46 152 15075 • [email protected] • www.spminstrument.com
ISO 9001:2000 certified © SPM 2017-09. 71947 B
Power supply
Shielded cable, twisted pairs
Shield not
connected
Shield connected to ground
Connecting
terminals for
AI = analog input
(4 - 20 mA) and
DI = digital input
(relays),
and power
Connection to PLC via analog output
To connect an MG4-REF11A unit to a PLC, one uses a shielded cable with twisted conductor pairs.
The analog 4-20 mA outputs of the MG4-REF11A are connected to an AI unit (analog input), the
relays to a DI (digital input) unit.
The condition monitoring parameters are set up in the MG4-REF11A. Control, display and data
storage are handled by the PLC.
PLC = Programmable Logic Control
CPU = Central Processing Unit
AI = Analog Input 4-20 mA from the MG4-REF11A
AO = Analog Output 4-20 mA to an external display
DI = Digital Input 0 or 24 V from a relay in the MG4-REF11A
DO = Digital Output 0 or 24 V to an external relay
DCS = Distributed Control System
Power supply
DCS
Summary of Contents for Machine Guard MG4-REF11A
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