Solartron Mobrey 3595 4C, User Manual

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Preparing and Installing The 3595 4C Interface 3595 4C User Manual Part One
2-4
35952350 (CH02/AA)
2.3 IMP POWER SUPPLY OPTIONS
IMP devices may be supplied with power from one of several sources:
a. From the internal power supply of the 3595 4C Interface card, via the S-Net cable. This supply can
provide 12V for the S-Net system.
b. From an external 12V – 50V power supply connected to the external power supply plug on the 4C
Interface card; again, via the S-Net cable. The location and pin numbering of the external power
supply are detailed in Section 2.6, page 2-12. This supply allows up to 50 IMP devices to be
operated with a maximum S-Net cable length of 1km.
The IMP power supply is automatically switched to the external source when a voltage of over 12V is
applied to the external power plug on the 4C Interface card. Where the external source is to be used
continuously, it is recommended that the ‘on-card’
Jumper J201 link is removed. (See Figure 2.3)
c. Directly from a power supply that is local to the IMP(s). For further information on this, refer to the
“3595 Series IMP Installation Guide”.
Each IMP consumes approximately 1W (1.2W at power-up). In some applications, the 3595 1D Analogue
Output IMP can require more power. In this case, special consideration is needed. Refer to the “3595
Series IMP Installation Guide” for details.
Figure 2.3: Location of external power supply Jumper J201
SUPPLY CONSIDERATIONS FOR THE VIMP
A VIMP is powered from two sources: S-Net conveys power to the communications module, whilst a
3595 95D Power Supply, local to the VIMP, supplies power to the vibration measurement front end.
Depending on the total power required from S-Net, source a or source b (as described above) can be
used to provide the power for the VIMP communications module.