Renishaw FORTiS-S, Руководство по монтажу функциональной безопасности и руководство по безопасности, Страница: 27 / 31

25 Original instructions
15 Cables and protocols
15.1 General specifications
15.2 Permissible cable lengths
The tables opposite show permissible cable and extension cable combinations for the FORTiS-S FS range
of enclosed linear encoders. For longer extension cable lengths a shorter readhead cable is required. This
information is valid for all communication protocols and connector types. At the worse case the minimum
acceptable supply voltage is 4.75 Vdc.
Extension cable length (m)
1 3 6 9 12 15 20
Readhead
cable
length
(m)
Type A
0.5
      
1
      
3
      
6
      
9
      
Type B
0.5
      
1
      
3
      
6
      
9
      
Type D
(armoured)
1
      
3
      
6
      
9
      
Type C extension cables
Max. extension cable length (m)
Readhead
cable length
(m)
Type A
0.5 55
1 51
3 38
6 20
9 1
Type B
0.5 56
1 55
3 51
6 45
9 39
Type B extension cables
Readhead cable Type A Ø4.7 mm, 28 AWG, 7 core, single screen, black jacket
Flex life > 20 × 10
6
cycles at 20 mm bend radius
Minimum static bend radius (internal radius): 15 mm
Type B OD: 6.3 mm, 23 AWG, 6 core (3 × twisted pairs),
single screen, green jacket
Flex life > 20 × 10 6 cycles at 75 mm bend radius
Minimum static bend radius (internal radius): 31.5 mm
Type D Armoured: OD 10 mm, 28 AWG, 7 core
Flex life > 20 × 10
6
cycles at 100 mm bend radius
Minimum static bend radius (internal radius): 35 mm
Extension cable
(if applicable)
Type B OD: 6.3 mm, 23 AWG, 6 core (3 × twisted pairs),
single screen, green jacket
Flex life > 20 × 10
6
cycles at 75 mm bend radius
Type C OD: 7.8 mm, 20 AWG (power), 8 core (3 × twisted pairs
+ 2 power sense), single screen, green jacket
Flex life > 20 × 10 6 cycles at 75 mm bend radius
Minimum static bend radius (internal radius): 58 mm
CAUTION: The FORTiS-S FS encoder system has been designed to the relevant EMC standards,
but must be correctly integrated to achieve EMC compliance. In particular, attention to shielding
arrangements is essential.