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4.4 connection of a braking resistor
Attention
cAUTION
4.4.1 Terminal strip X1b connection braking resistor
X1b
Figure 12:
Terminal block X1B
4.4.2 Wiring of an intrinsically safe braking resistor
Figure 13:
Wiring of an intrinsically safe braking resistor
Destruction of the frequency inverter if the vale has fallen below the
minimum brake resistance value!
► The minimum brake resistance value must not fall below!
Hot surfaces caused by load of the braking resistor!
burning of the skin!
► Cover hot surfaces safe-to-touch.
► Before touching, check the surface.
► If necessary, attach warning signs on the system.
Name
function
Connection for braking
++, R
resistor (alternatively
++, PB)
– –
DC link –
Connection for protec-
PE,
tive earth
X1B
R
Only "intrinsically safe" braking resistors are permissible for this op-
--
eration, since these resistors interrupt themselves at fault such as
++
safety fuse without fire risk. Further information can be found in the
U
instruction manual for G6 braking resistors.
V
W
cross-section
Tightening
torque
0.2...2.5 mm²
0.5...0.6 A
AWG 24...12
5...7 lb-inch
1.3 Nm
Screw M4
11 lb-inch
37
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