6.4.2. Cable connection
Table 19:
Terminal cross sections and terminal tightening torques
Tightening torquesTerminal cross sectionsDesignation
0.9 – 1.1 NmWith small clamp washers:
1.5 – 4.0 mm
2
(flexible or solid)
Power contacts (U1, V1, W1)
Protective earth connection (PE)
With large clamp washers:
2.5 – 6 mm
2
(flexible or solid)
0.5 – 0.7 Nm0.75 – 1.5 mm
2
(flexible or solid)Control contacts
(1 to 24, 31 to 40, 47 to 50, PE)
1. Remove cable sheathing in a length of 120 – 140 mm.
2. Insert the wires into the cable glands.
3. Fasten cable glands with the specified torque to ensure required enclosure
protection.
Information: For shielded cables: Link the cable shield end via the cable gland
to the housing (earthing).
4. Strip wires.
→
Controls max. 8 mm, motor 12 mm
5. For flexible cables: Use wire end sleeves according to DIN 46228.
6. Connect cables according to order-related wiring diagram.
Information: Two wires for each connection permitted.
→
When using motor cables with wire cross section of 1.5 mm²: Use small
clamp washers for connection to terminals U1, V1, W1 and PE (the small
clamp washers are in the cover of electrical connection upon delivery).
In case of a fault, electric shock due to presence of hazardous voltage if the
PE conductor is NOT connected!
Risk of death or serious injury!
→
Connect all protective earth conductors.
→
Connect PE connection to external protective earth conductor of connecting
cables.
→
Start running the device only after having connected the protective earth con-
ductor.
7. Firmly tighten protective earth to PE connection.
Figure 32: PE connection
[1] PE connection, control cable
[2] PE connection, motor cable
35
SQEx 05.2 – SQEx 14.2/SQREx 05.2 – SQREx 14.2 Control unit: electronic (MWG)
ACExC 01.2 Non-Intrusive Profibus DP Electrical connection
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