300 Properties of the Modules
imc CANSAS Users Manual - Doc. Version 1.9 - 05.12.2014© 2014 imc Meßsysteme GmbH
6.7.3 Sensor supply
The DCB8 channels are enhanced with an integrated sensor supply unit, which provides an adjustable
supply voltage for active sensors. The supply outputs are electronically protected internally against short
circuiting to ground. The reference potential, in other words the sensor's supply ground contact, is the
terminal GND.
The supply voltage can only be set for a group of eight channels.
The supply outputs are electronically protected internally against short circuiting to ground. The
reference potential, in other words the sensor's supply ground contact, is the terminal GND.
The voltage selected is also the supply for the measurement bridges. If a value other than 5 V or 10 V is
set, bridge measurement is no longer possible!
Before a sensor will be connected, make sure the voltage supply has been set correctly (not too high).
Therefore the voltage supply must be set and configured using the software. Then the sensor can be
connected. Otherwise the sensor and the CANSAS-module could be damaged.
There is a 5 V pin at the imc connector. That voltage is not available for the CANSAS-modules, only for
CRONOS-PL!
The technical data of the sensor supply is listed as part of the data sheet of CANSAS-DCB8.
6.7.4 Bandwidth
The channels' maximum sampling rate is 1 kHz (1 ms). The analog bandwidth (without digital low-pass
filtering) is 200 Hz (-3 dB).
6.7.5 Connection
For the signal connections, it is possible to use either DSUB-15 (CANSAS-x-DCB8-D), ITT-VEAM-plugs
(CANSAS-x-DCB8) or LEMO-plugs (CANSAS-x-DCB8-L). In the connection diagrams, the numbering for
LEMO and custom ITT VEAM connectors appear alongside of the labeling in the terminals:
Quarter bridge completion / sense for Pt100 3-wire configuration
ITT-VEAM-plugs
474
551
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