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into the spaces between the windings and
insulation, etc. Grease-removing solvents can
cause damage to impregnating varnish or
insulation
4.
The FC-motor should be re-assembled in the
reverse order from dismantling, remembering to
ease endshields onto bearings and spigots. DO
NOT USE FORCE.
5.
Before starting, check that the rotor revolves
freely. Ensure that the electrical connections are
correct.
6.
Refit any pulley, coupling, sprocket etc. which has
been removed, being particularly careful to
ensure correct alignment with the driven part, as
misalignment will lead to ultimate bearing
trouble and shaft breakage.
7.
When replacing screws and bolts, care should be
taken to use only those with the requisite quality
and tensile strength recommended by the
manufacturer. These must also be of identical
thread form and screw/bolt length (see
2.2.9 FCM 300 Thermal Protection
The thermal protection of FC and motor is covered in the
following way:
•
Overload situations are handled by the calculated
electrical load (I
2
X t).
•
Missing ventilation and high ambient
temperature is handled by the temperature
measurement. The derating for low speed (due to
missing ventilation) is not incorporated in the
electrical load calculation but taken care of by
the temperature measurement. Forced ventilation
is thus automatically covered.
Electrical load
The current is measured in the DC link and the estimated
load is calculated. The level of the electrical load is set at
an output torque of 105%. Above that level a counter is
increased, below the level it is decreased. The counter
starts at zero. When the counter reaches 100, the unit trips.
At 98 the warning indication goes on (LED and status
word).
Load
Time from 0 to 100
Time from 100 to 0
0%
-
60 s
20%
-
100 s
40%
-
150 s
60%
-
200 s
80%
-
250 s
105%
900 s (if over 105%)
300 s (if under 105%)
120%
550 s
-
140%
210 s
-
160%
60 s
-
>165% 20 s
-
Table 2.21
At full AC brake (parameter 400) a load > 165% is
simulated => 20 s to trip.
The value can be read in parameter 527. (LCP:FC thermal).
The temperature measurement is sensing the temperature
within the electronics box.
At warning level
⇒
Warning indication goes on (LED and
status word) and the unit might trip if the temperature
doesn't sink back below warning level within 15 minutes. If
the function TEMP.DEP.SW is activated in parameter 412,
the switching frequency is decreased gradually down to 2
kHz attempting to decrease the temperature.
Trip level
⇒
Immediate trip and alarm indication (LED and
status word).
The value can be read in parameter 537 (LCP: Heat sink
temp.).
The temperature levels seem to be high, but due to a local
heating of the sensor the practical levels of the inside air
temperature are approx. 10° C lower.
2.3 Local Control
2.3.1 Service Plug Kit (175N2546)
Purpose
To run LCP2 and PROFIBUS at the same time. The service
plug can be used with FCM 300 of serial number 03Gxxx
and software version as from 2.03. Used together with
cable for plug kit 175N0162.
Installation
VLT
®
DriveMotor FCM Series
MG03BA02 - VLT
®
is a registered Danfoss trademark
23
2
2
Содержание VLT Brook Crompton Motor FCM 300
Страница 1: ...MAKING MODERN LIVING POSSIBLE Design Guide VLT Brook Crompton Motor FCM 300 www danfoss com drives...
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Страница 26: ...Illustration 2 5 Installation VLT DriveMotor FCM Series 24 MG03BA02 VLT is a registered Danfoss trademark 2 2...
Страница 37: ...Programming VLT DriveMotor FCM Series MG03BA02 VLT is a registered Danfoss trademark 35 3 3...
Страница 101: ...Index VLT DriveMotor FCM Series MG03BA02 VLT is a registered Danfoss trademark 99...
Страница 102: ...www danfoss com drives MG03BA02 175R0087 MG03BA02 Rev 2011 12 22...