The TELEFAST pre-wired system consists of connecting cables and interface sub-bases as shown below:
The TELEFAST ABE-7CPA412 accessory is a base unit used to connect 4-channel analog modules to screw terminal blocks.
NOTE: When the cabinet where the TELEFAST ABE-7CPA412 accessory is located and powered up, wait at least 45mn to achieve full precision of the CJC compensation. It is not necessary to wait 45 min if the compensation is performed by an external Pt100 probe.
When using the TELEFAST ABE-7CPA412’s cold junction compensation, in order to make sure you achieve the indicated level of precision, the movement of air around the TELEFAST ABE-7CPA412 must not exceed 0.1 m/s. Temperature variations must not exceed 10°C/hour and the TELEFAST ABE-7CPA412 must be placed at least 100mm away from all heat sources.
The TELEFAST ABE-7CPA412 can be operated from -40°C to +80°C external temperature.
BMX FCA ••2 Connecting Cables
The BMX FCA ••2 cables are pre-assembled cord set, made up of:
-
At one end, a 40-pin connector (FCN type) from which extend 1 cable sheath containing 20 wires,
-
At the other end a 25-pin Sub-D connector.
The figure below shows the BMX FCA ••2 cables:
1
40-pin connector, FCN type
2
Cable shielding
3
25-pin Sub-D connector
L
Length according to the part number.
The cable comes in 3 different lengths:
-
1.5 m (4.92 ft): BMX FCA 152
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3 m (9.84 ft): BMX FCA 302
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5 m (16.40 ft): BMX FCA 502
The following table gives the characteristics of the BMX FCA ••2 cables:
|
Characteristic
|
Value
|
|
Cable
|
Sheath material
|
PVC
|
|
LSZH status
|
No
|
|
Environmental
|
Operating temperature
|
-25...70 °C (-13...158 °F)
|
Sensors may be connected to the TELEFAST ABE-7CPA412 accessory as shown in this
illustration.
Wirings
Legend:
Operating in TC mode with Telefast internal cold junction compensation.
Legend:
Operating in TC mode with cold junction compensation using a 2-wire PT100 probe.
Legend:
Operating in TC mode with cold junction compensation using a 3-wire PT100 probe. 
