Planning The Installation - Control Techniques Unidrive LV Series Installation Manual

2.3

Planning the installation

Instructions in numbered steps
The instructions in this section are contained in
numbered steps. In some of these steps you will
need to make a note of a value for future reference
and, to help with identification, the number of the
step.
supply protection
AC
The
AC
be fitted with suitable
protection against overload
Warning
and short-circuits. Table 2–1
shows recommended fuse
ratings. Failure to observe this
recommendation will cause a
risk of fire.
S 1 Include a fuse of the specified rating in
TEP
each phase of the
following types of fuse is recommended:
•
Europe: Type gG HRC industrial fuses to
IEC 269 (BS88)
•
USA: RK1 600V
An MCB or MCCB having the correct thermal
and magnetic trip ratings may be used in place
of fuses, on condition the fault-current clearing
capacity is sufficient for the installation.
Note
UL listing is dependent on the use of the
correct type of UL-listed fuse, and applies
when the symmetrical short-circuit current
does not exceed 5kA. Refer to Appendix B
UL Listing Information.
Unidrive LV model sizes 1 to 3 Installation Guide
Issue code: uliu1
supply to the Drive must
supply. The use of the
AC
AC
Table 2–1 Fuse ratings for all versions of
the Unidrive LV
Model
UNI 1201
UNI 1202
UNI 1203
UNI 1204
UNI 1205
UNI 2201
UNI 2202
UNI 2203
UNI 3201
UNI 3202
UNI 3203
UNI 3204
Power cables
Wiring must be in accordance
with local regulations and
codes of practice. The table
Warning
below shows typical cable sizes
for power input and output
wiring. In the event of a
conflict, local regulations
prevail.
Cable type and size
S 2 For the following power connections...
TEP
•
supply to RFI filter (when used)
AC
•
supply (or RFI filter) to Drive
AC
•
Drive to motor
•
Drive to braking resistor
... use 105°C (221°F) pvc-insulated cable of
suitable voltage rating and having copper
conductors, as shown in Table 2–2.
Installing the Drive
Fuse rating
6 A
10 A
10 A
16 A
16 A
16 A
20 A
35 A
40 A
60 A
70 A
80 A
2-3