Emotron AB 01-4429-01r2 Installation 17
Fig. 23 Variable speed drive in a cabinet on a mounting plate
Fig. 24 shows an example when there is no metal mounting
plate used (e.g. if IP54 variable speed drives are used). It is
important to keep the “circuit” closed, by using metal hous-
ing and cable glands.
Fig. 24 Variable speed drive as stand alone
Connect motor cables
1. Remove the cable interface plate from the VSD housing.
2. Put the cables through the glands.
3. Strip the cable according to Table 8.
4. Connect the stripped cables to the respective motor ter-
minal.
5. Put the cable interface plate in place and secure with the
fixing screws.
6. Tighten the EMC gland with good electrical contact to
the motor and brake chopper cable screens.
Placing of motor cables
Keep the motor cables as far away from other cables as possi-
ble, especially from control signals. The minimum distance
between motor cables and control cables is 300 mm.
Avoid placing the motor cables in parallel with other cables.
The power cables should cross other cables at an angle of
90°.
Long motor cables
If the connection to the motor is longer than 100 m (40 m
for models 003-018), it is possible that capacitive current
peaks will cause tripping at overcurrent. Using output coils
can prevent this. Contact the supplier for appropriate coils.
Switching in motor cables
Switching in the motor connections is not advisable. In the
event that it cannot be avoided (e.g. emergency or mainte-
nance switches) only switch if the current is zero. If this is
not done, the VSD can trip as a result of current peaks.
VSD built into cabinet
VSD
RFI-Filter
(option)
Mains
Metal EMC cable glands
Output coil (option)
Screened cables
Unpainted mounting plate
Metal EMC cable
glands
Screened cables
Metal housing
To Next Page
Loading...
Need help?
General
