HARDWARE MANUAL Document reference MAMPS-HW/E
VM600 machinery protection system (MPS) Edition 18 - March 2022
9-18
Connecting vibration and pressure sensors
CONFIGURATION OF MPC4 / IOC4T CARDS
9.2.4.5 Current-modulated signal
Applies to the following transducers or transducer and signal conditioner systems:
• AE119
• LS12x + ILS73x (HI => MIN. GAP 4 to 20 mA, LO => COM).
Notes
1- Switch Sw1 is closed to allow current-modulated signals to be processed.
The Signal Transmission Mode field has to be set to the Current option.
2- Switch Sw2 is set to position 1. This connects the IOC4T card's sensor power supply to
the PS terminal, though in fact this terminal is not used.
the Sensor Power Supply field can be set to any powered option (+27 VDC, −27 VDC,
+15 VDC or +6.16 mA) but should preferably be set to +6.16 mA.
3- The operator must connect an external power supply to the transducer or transducer and
signal conditioner.
Figure 9-12: Connection diagram
Sensor
power
supply
External
power
supply
Signal
0V
Supply
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