Emerson Unidrive Classic, Unidrive SP Technical Note

Technical Note

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CTTN # 149

This Technical Note is pertinent for Unidrive SP and Unidrive Classic

Quick Setup/Checkout Guide

There are many considerations when setting up a drive of which safety during
commissioning is of primary concern. One should always have a method of E-Stopping
the drive and verify that it works before attempting a drive setup. This guide is intended
for the technician who is already familiar with the Unidrive Classic or Unidrive SP and is
no substitute for the information provided in the User Guides for these products. It is
merely a short form guide outlining very basic initial setup steps toward the goal of
verification of a drive and motor combination.

Unidrive Classic Unidrive SP

Enable ( typically 30-31 ) Terminal 22-31
Security #0.00= 149 #0.49= L2
Storing/Saving #0.00= 1000 then RESET ( Stop Button )
Setting Defaults #0.00= 1244 then RESET ( Stop Button )
Mode Change #0.00= 1254 then set #0.48= desired mode then RESET
Normal Display #0.10 shows Motor rpm
Auto Tune #0.40=1 Rotating #0.40=1 Static non-rotating)
#0.40=2 Rotating

( motor will go to 2/3 max speed )

Enable needs toggled to move beyond

( Shaft must be unloaded for rotating Autotune !!! )

Performing an Autotune – Show Me

Main Setup Parameters are in Menu 0

#0.02 Max Hz or RPM
#0.03 & 0.04 Accel and Decel rates

#0.05 Basic Control Method ie
#0.42 = # of motor poles

#0.43 = power factor ( not Service Factor ! Never 1 or greater !!

If you don’t know it leave at 0.85
#0.44 = rated voltage
#0.45 = rated RPM
#0.46 = rated AMPS
#0.47 = rated Frequency

Pad (or 4 )= Keypad operation

Motor

Namplate

Data

CTTN149 V1.3 Page 1 5/26/2009

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Other Resources

Unidrive Classic User Guide

Unidrive Classic Advanced User Guide

Unidrive SP User Guide

Unidrive SP Advanced User Guide

Unidrive Classic to Unidrive SP PreConversion Considerations- see CTAN277
Unidrive Classic Replacement Details- see CTAN278

Other SHOW ME Unidrive SP Video Resources

CTVI103
CTVI104
CTVI105
CTVI106
CTVI107

CTVI108

AC Motor Synchronous Speeds

# Poles 50Hz Motor 60Hz Motor

2 3000 3600
4 1500 1800
6 1000 900
8 750 450

Example: If a motors nameplate indicates that its “rated” speed is 3510 rpm, this would infer
that the motor is a 60Hz 2 pole design.

Changing a Parameter Selection
Modifying Numeric Values
Saving Parameter Changes
Saving drive data on SMARTCARD
Read drive data from SMARTCARD

Accessing parameters outside menu 0

CTTN149 V1.3 Page 2 5/26/2009