27
VLT
®
Series 3500
DANGER
!
The drive voltage is dangerous when connected to the
AC line and up to 14 minutes after the unit has been
disconnected. Electrical installation is only to be carried
out by a qualified electrician. Incorrect mounting of the
motor or the drive may result in damage to the
equipment, serious personal injury or death. The
instructions in this manual must be complied with,
together with national and local safety regulations.
NOTE
It is the responsibility of the user or the electrician
to ensure that the drive is properly grounded in
accordance with applicable national and local
standards.
Input Fuses
For VLT Type 3502-3562 drives, external input fuses
must be installed in the power supply for the drive, if not
specified as a drive option. The maximum size of the
input fuses is shown below. For VLT Type 3575 - 3800
460 volt, and VLT 3542 - 3562 208/230 volt drives, the
input fuses are included in the basic drive. All fuses must
be Bussman JJN for 200 - 230 volt drives, JJS for 380 -
415 and 440 - 500 volt drives or exact equivalent.
Input Voltage
VLT
Max. Fuse
Type
Rating
200 - 230 V
3502
20 A
3504
25 A
3508
40 A
3511
50 A
3516
60 A
3522
80 A
3532
125 A
3542
150 A
3552
150 A
3562
150 A
Input Voltage
VLT
Max. Fuse
Type
Rating
380 - 415 V
3502
16 A
3504
16 A
3505
16 A
3508
25 A
3511
25 A
3516
50 A
3522
63 A
3532
63 A
3542
80 A
3552
100 A
3562
125 A
Input Voltage
Max. Drive
Max. Fuse
Output Current
Rating
440 - 500 V
3502
10 A
3504
20 A
3506
25 A
3508
25 A
3516
30 A
3522
40 A
3532
50 A
3542
60 A
3552
100 A
3562
125 A
NOTE: It is the responsibility of the user or person
installing the drive to provide proper grounding and
branch circuit protection for incoming power and motor
overload according to the National Electrical Code (NEC)
and local codes.
The Electronic Thermal Relay (ETR) in UL listed VLTs
provides Class 20 motor overload protection in
accordance with NEC in single motor applications, when
parameter 315 is set for
“TRIP”, parameter 311 is set of
“0”, and parameter 107 is set for rated motor (nameplate)
current.
Power and Motor Terminals
The terminals for both the three phase AC line input and
the motor output are located in the lower portion of the
enclosure of the drive.
The electronic thermal relay (ETR) cannot be used for
more than one motor running at a time. ETR has been
UL approved for operating individual motors only when
parameter 315 has been set to TRIP, parameter 311 has
been set to 0 sec., and parameter 107 has been
programmed to match the rated motor (nameplate)
current.
The AC line supply and the motor must be connected as
shown on the following pages. Refer to the appropriate
figure for your VLT type.
NOTE: Shielded motor cable is optional in most U.S.
applications. Refer to CE Marking section in this manual.
The shield on the motor wire, if used, should be
connected to earth ground at both the drive and the
motor.