AYK550-UH User’s Manual
227
Technical Data
Ground Connections
For personnel safety, proper operation and to reduce electromagnetic emission/pick-
up, the drive and the motor must be grounded at the installation site.
• Conductors must be adequately sized as required by safety regulations.
• Power cable shields must be connected to the drive PE terminal in order to meet
safety regulations.
• Power cable shields are suitable for use as equipment grounding conductors only
when the shield conductors are adequately sized as required by safety
regulations.
• In multiple drive installations, do not connect drive terminals in series.
Drive’s Power Connection Terminals
The following table provides specifications for the drive’s power connection
terminals.
249
3x150
237
4/0
284
3x185
264
250 MCM or 2 x 1
291
300 MCM or 2 x 1/0
319
350 MCM or 2 x 2/0
Frame
Size
U1, V1, W1 and U2, V2, W2 Terminals
Earthing PE Terminal
Maximum Wire Size
Torque
Maximum Wire Size
Torque
mm
2
AWG
Nm
lb-ft
mm
2
AWG
Nm
lb-ft
R1
6
8
1.4
1.0
4
10
1.4
1.0
R2
10
6
1.4
1.0
10
8
1.4
1.0
R3
25
3
1.8
1.3
16
6
1.8
1.3
R4
50
1/0
2.0
1.5
35
2
2.0
1.5
R5
70
2/0
15
11.1
70
2/0
15
11.1
R6
185
350 MCM
40
29.5
95
4/0
8
5.9
IEC
NEC
Based on:
• EN 60204-1 and IEC 60364-5-2/2001
• PVC insulation
• 30 °C (86 °F) ambient temperature
• 70 °C (158 °F) surface temperature
• Cables with concentric copper shield
• Not more than nine cables laid on cable ladder
side by side.
Based on:
• NEC Table 310-16 for copper wires
• 90 °C (194 °F) wire insulation
• 40 °C (104 °F) ambient temperature
• Not more than three current-carrying
conductors in raceway or cable, or earth
(directly buried).
• Copper cables with concentric copper shield
Max
Load
Current
(A)
Cu Cable
(mm
2
)
Max
Load
Current
(A)
Al Cable
(mm
2
)
Max Load
Current
(A)
Cu Wire Size
(AWG/kcmil)
Summary of Contents for AYK 550
Page 256: ...D1 AYK550 UH User s Manual Appendix D Appendix D Base Drive Drawing 205662 Drawings Fig 1...
Page 257: ...AYK550 UH User s Manual D2 Appendix D Base Drive w Fused Disconnect Drawing 205648 Fig 2...
Page 258: ...D3 AYK550 UH User s Manual Appendix D Base Drive w Non Fused Disconnect Drawing 205647 Fig 3...