•
3 Mechanical Installation
3.1 Connection Tightening Torques
Table 3: Tightening Torque for Cables
Location
Enclosure sizes
A2–A5
B1/B3
B2/B4
C1/C3
C2/C4
D1h/D3h
Mains terminals [in-lb]
4.4–5.3
15.9
39.8
89
124 (up to 3 AWG)
212 (over 3 AWG)
168/335
(1)
Motor terminals [in-lb]
4.4–5.3
15.9
39.8
89
124 (up to 3 AWG)
212 (over 3 AWG)
168/335
(1)
Ground terminals [in-lb]
–
17.7–26.6
17.7–26.6
17.7–26.6
17.7–26.6
84/169
(2)
Brake terminals [in-lb]
4.4–5.3
15.9
39.8
89
124
84
Relay terminals [in-lb]
–
4.4–5.3
4.4–5.3
4.4–5.3
4.4–5.3
4
1
Bolt size M10/M12
2
Bolt size M8/M10
3.2 Cooling
Ensure that top and bottom clearance for air cooling is provided. See
a
a
e
3
0
b
d
5
2
8
.1
0
Illustration 2: Top and Bottom Cooling Clearance
Table 4: Minimum Airflow Clearance Requirements
Enclosure
A2–A3, A5
B1–B4
C1, C3
C2, C4
D1h–D4h
a [in]
3.9
7.8
7.8
8.9
8.9
AN354546796134en-000201 / 130R0954
10 | Danfoss A/S © 2021.05
Mechanical Installation
VLT®AutomationDrive EZ FC 321
Installation Guide
Содержание VLT AutomationDrive EZ FC 321
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