14 Make sure that the grounding conductor is
connected to the motor and also to the terminals
that are identified with
.
a)
To obey the requirements of the standard
EN61800-5-1, obey the instructions in chapter
2.4 Grounding and earth fault protection.
Table 21: Tightening torques of the terminals, MR8-MR12
Enclosu
re size
Type
Tightening torque: the mains and
motor cable terminals
Tightening torque: the grounding
terminals
[Nm] lb-in. [Nm] lb-in.
MR8
0140 5-0205 5
0080 7-0125 7
30-44 * 266-389 * 20 177
MR9
0261 5-0310 5
0144 7-0208 7
30-44 * 266-389 * 20 177
MR10
0385 5-0590 5
0261 7-0416 7
55-70 490-620 20 177
MR12
0650 5-1180 5
0460 7-0820 7
55-70 490-620 20 177
* = Counter torque is required for the mains cable terminals.
POWER CABLING VACON · 75
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