N3 Drive Operations Manual
Introduction & Safety
1
1.0 Introduction
The
N3
Inverter
series is state of the art design using the latest control and power technologies. It is designed to
operate and control 3Ø induction motors in the hp range of
0.5 to 75 hp
and voltage class of
230 or 460VAC
. The
inverter can operate in the
open loop
vector, variable torque, or V/F mode;
settable via programming. There are two
sets of parameters:
b
Basic, and
A
Advanced, allowing for flexible control in many different applications. The
membrane keypad in combination with a 3 digit 7 segment display allows for ease of programming and monitoring.
An optional communications module can be used for control and parameter setting using the MODBUS RTU protocol.
The
N3
has been designed with easy access to the input power, output motor, and control terminals.
Before proceeding with the set-up and installation please take time to review this manual
to ensure proper operation
and above all else,
personnel safety.
Should there be any problem in using the product that cannot be resolved with
the information provided in the manual, please contact your nearest TECO distributor or sales representative for
assistance.
SAFETY FIRST!
The inverter is an electrical product. For your safety, there are symbols “Danger” and “Caution” in this manual as a
reminder to pay attention to safety instructions on handling, installing, operating, and troubleshooting the inverter. Be
sure to follow the instructions for maximum safety.
!
DANGER
-
Indicates a potential hazard that could cause death
or serious personal Injury.
!
CAUTION - Indicates that the inverter or the mechanical system
might be damaged.
!
DANGER
Do not
touch any circuit boards or components while the
charge indicator
is still on
after power is turned off. Wait until the
charge indicator
lamp is completely
extinguished. NOTE:
The charge indicator lamp is located under the digital
operator
Do not
connect or disconnect any wiring while power is present.
Do not
test parts and signals on the circuit boards during the inverter operation.
Do not
disassemble the inverter and modify any internal wires, circuits, or parts.
Ensure that the ground terminal of the inverter is bonded properly to earth ground.
For 200V class, ground to <100 Ω. For 400v class, ground to <10Ω.
!
CAUTION
Do not
perform high voltage dielectric tests on any inverter parts, as damage to
these parts may can result.
Do not
connect the AC input power supply to the motor terminals T1 (U), T2 (V),
and T3 (W) of the inverter.
Do not
touch any circuit board without proper precautions as the CMOS ICs on the
inverter’s control board can be damaged due to static electricity.
