Assembly And Disassembly; Spare Parts - WEG ODP Instrucciones Para La Instalacion Y Mantenimiento

Note:
 Although MOBIL Polyrex EM is compatible
with the types of grease given above, we do
not recommend mixing it with any other types
of grease.
 If you intend to use a type of grease
different than those recommended above,
first contact WEG.
b
efore using sTandard moTors
in specific areas or on special
applicaTions
grease manufacTurer or weg

5.2 Assembly and Disassembly

Disassembly and assembly must be done by
qualified personnel using only suitable tools
and appropriate methods.
The bearing extractor grips must be applied
over the side face of the inner ring to be
disassembled or over an adjacent part.
It is essential to assemble bearings under
clean conditions to ensure good operation
and to avoid damages. New bearings shall
only be taken out from their packages when
mounting them.
(*) Informed by the drive manufacturer.
Note:
1) Nameplate
415V/660-690V – 50Hz and 440-480 – 60Hz,
and fed by VFD on voltage 660-690V – 50Hz
or 480V – 60Hz require filters.
Rated Voltage
575V V 690V
rated
(*) Informed by the drive manufacturer.
,
firsT conTacT The
showing voltage
Insulation
Voltage Spikes
System
motor terminals
Reinforced
Insulation
Before installing a new bearing it is required
to check the shaft fitting for any sharp edge
or strike signals.
For bearing assembly, warm their inner parts
with suitable equipment – inductive process
– or use suitable tools.
When ordering spare parts, please specify
the full type designation and product code
as stated on the motor nameplate. Please
also inform the motor serial number stated
on the nameplate.
7 - VARIABLE FREQUENCY DRIVE
7.1 - Standard Motors Line
Motors with voltages up to 575V and fed by
VFD do not require filters if follow the criteria
below:
* Other frame sizes, under request.
7.2 - Inverter Duty Motors Line
380-
Motors with voltages above 575V and equal
or below 690V and fed by VFD do not require
filters when following the criteria below:
TECHNICAL CRITERIA FOR VFD APPLICATION
dV/dt
inverter
terminals
(maximum)
(maximum)
2140V 7800 V/ s
 Check power supply voltage of the forced
cooling set.
12

6 - SPARE PARTS

MOTORS
(*)
Rise Time
inverter
Minimum Time
terminals
Between Pulse
(minimum)
0,1 s
(*)
MTBP
6 s