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• Requirements according to IEC/EN 60204‑1
• Dimensioning for bundled cable routing, e.g. according to DIN VDE 0298 Part 4 or
IEC 60364-5-52
6.1.3
Terminal box
Hazardous voltage
Electric motors have high voltages. When incorrectly handled, this can result in death or severe
injury.
Switch off the machine so that it is in a no-voltage condition before you open the terminal box.
NOTICE
Damage to the terminal box
If you incorrectly carry out work on or in the terminal box, this can result in material damage.
You must observe the following to avoid damaging the terminal box:
• Ensure that the components inside the terminal box are not damaged.
• It must be ensured that there are no foreign bodies, dirt or moisture in the terminal box.
• Close the terminal box using the original seal so that it is dust tight and water tight.
• Use O-rings or suitable flat gaskets to seal entries in the terminal box (DIN 42925) and other
• Please observe the tightening torques for cable entries and other screws.
• Do not apply manual force to the terminal board. The terminal board mountings are
6.1.3.1
Terminal marking
According to IEC / EN 60034‑8, the following basic definitions apply to the terminal markings for
3-phase machines:
Table 6-1
1
x
1PC1423 roller-table motors SH 112 ... 400
Operating Instructions
DANGER
open entries.
designed for the cable sizes specified in the documentation.
Terminal markings using the 1U1-1 as an example
U
1
-
1 Marking
Code for split winding, where applicable. Special case for pole assignment for pole-
changing machines.
A lower index signifies a lower speed.
x
Phase designation U, V, W
x
Index for winding start (1) or end (2) or if there is more than one connection per
winding
x Additional indices for cases in which it is obligatory to connect parallel power feed
cables to several terminals with otherwise identical markings
Electrical connection
6.1 Connecting the machine
59
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