SEW-Eurodrive DFS 56L/B, Operating Instructions Manual

Page: 5 / 36

DFS/DFY Synchronous Motors
5
Installation/Assembly 2
2 Installation/Assembly
2.1 Before you begin
If you do not install the motor straightaway, store it in a dry, dust and vibration-free room at
–25 ... + 40 °C.
The drive must only be assembled if:
• The entries on the motor nameplate match the project planning documentation.
• The drive is undamaged (no damage caused by carriage or storage).
• It is certain that the following requirements are met:
Standard design No oil, acids, gases, vapors, radiation, etc.
Permissible humidity: 85 %. No condensation!
Permissible without derating are:
– Coolant temperature between – 25 °C and + 40 °C
1
– Installation height max. 1000 meters above sea level
Special design For deviating ambient and/or operating conditions the
design must be in accordance with the project planning
documentation.
Tools / resources required
• Standard tools
• Fitting tool if necessary
• If end ferrules are used: crimping tool and end ferrules (without insulating sleeve, DIN 46228,
Part 1, material E-Cu)
if necessary:
• Crimping tool (for connector)
• Removal tool
2.2 Preparatory work after an extended period of storage
Check whether the motor has absorbed any
moisture during the extended period of storage.
For this purpose the insulation resistance of the
motor winding (U, V, W to housing) must be
measured (measuring-circuit voltage 500 V) .
Note:
The insulation resistance is very much depen-
dent on the temperature.
If the insulation resistance is insufficient, the
motor must be dried by skilled personnel.
00056AXX
Fig. 1: Minimum insulation resistance
End drying process when the limit shown in Fig. 1 is exceeded.
1. If the AGY absolute encoder is used in the standard version, the coolant temperature is limited to 0 ... + 40 °C.
Please note that the temperature range of the gear unit may be restricted too (see Installation and Operating
Instructions of the gear unit).
.