Taco SKV SelfSensing

Taco® SKV
83
302-365, Effective: June 5, 2017
© 2017 Taco, Inc.
APPENDIX B: ON-SITE DRIVE MOUNTING TO WALL OR PUMP
Follow the steps below for on-site drive mounting to wall
or to pump.
B.1 Match Pump and Drive Tags
IMPORTANT: Ensure the pump tag matches
the VFD tag. The pump and drive will have
identical tags as shown below.
Figure B-1: Example Tag
B.2 Mechanical Connections
For mechanical connections to pump, see section 7.2.
For mechanical connections to wall, see section 7.3.
B.3 Electric Code Compliance
Installation must be in compliance with national and local
electric codes.
For electrical connections see Section “8 Electrical Con-
nections” on page 9.
B.4 Before Start Safety Inspection
DANGER: HIGH VOLTAGE! If input and out-
put connections have been connected
improperly, there is potential for high voltage
on these terminals. If power leads for multi-
ple motors are improperly run in same con-
duit, there is potential for leakage current to
charge capacitors within the frequency con-
verter, even when disconnected from mains
input. For initial start up, make no assump-
tions about power components. Follow pre-
start procedures. Failure to follow pre-start
procedures could result in personal injury or
damage to equipment.
1.Input power to the unit must be OFF and locked
out. Do not rely on the frequency converter discon-
nect switches for input power isolation.
2.Verify that there is no voltage on input terminals L1
(91), L2 (92), and L3 (93), phase-to-phase and
phase-to-ground.
3.Verify that there is no voltage on output terminals
96 (U), 97 (V), and 98 (W), phase-to-phase and
phase-to-ground.
4.Confirm continuity of the motor by measuring ohm
values on U-V (96-97), V-W (97-98), and W-U (98-
96).
5.Check for proper grounding of the frequency con-
verter as well as the motor.
6.Inspect the frequency converter for loose connec-
tions on terminals.
7.Record the following motor-nameplate data: power,
voltage, frequency, full load current, and nominal
speed. These values are needed to program motor
nameplate data later.
8.Confirm that the supply voltage matches voltage of
frequency converter and motor.
CAUTION: Before applying power to the
unit, inspect the entire installation as detailed
in Table 23 on page 84. Check mark those
items when completed.