1 Mk8 MM Overview, Specifications and Wiring
Mk8 MM Manual Page | 22
1.3.3 Cable Specifications
Low Voltage
The screened cable used for low voltage wiring from the MM to the servomotors, detectors and variable
speed drive must conform to the following specification:
UV scanner cable length should not exceed 25m, all other screened cables should not exceed 50m.
16/0.2mm PVC insulated overall braid, screened, PVC sheathed.
• Sixteen wires per core
• Diameter of wires in each core 0.2mm
• Rated at 440V AC rms at 1600Hz
• DEF 61-12 current rating per core 2.5A
• Maximum operating temperature 70
o
C (158
o
F)
• Nominal conductor area 0.5sq mm per core
• Nominal insulation radial thickness on core 0.45mm
• Nominal conductor diameter per core 0.93mm
• Nominal core resistance at 20
o
C. 40.1Ω/1000m
• Nominal overall diameter per core 1.83mm
• Fill factor of braid screen 0.7
• Equivalent imperial conductor sizes 14/0.0076
Use the number of cores suitable for the application. A universal part numbering system appears to have
been adopted for this type of cable as follows:
16-2-2C 2 Core
16-2-3C 3 Core
16-2-4C 4 Core
16-2-6C 6 Core
16-2-8C 8 Core
(5 Core not readily available)
Note: If using 4 Core cable and interference is detected, use 2 sets of 2 Core.
Data Cable
Data cable must be used for communication connections between MMs for sequencing applications as well
as between MMs to EGAs, MMs to a DTI and DTI to BMS systems.
Communication cable should not exceed 1km.
Types of data cable that can be used:
• Belden 9501 for 2-core shielded cable (1 twisted pair)
• Belden 9502 for 4-core shielded cable (2 twisted pairs)
• STC OS1P24
Samples are available upon request. Low voltage and data cable can be ordered directly from Autoflame
Engineering, please contact Autoflame Sales.
When using a VSD, please review the manufacturer’s guidelines on installations to prevent EMC including
the recommendations for reactors and filters.
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