Filter
Top Products
Class 8998 Motor Control Centers
Factory Options, Monitoring and Indication
213
09/2003
© 2000–2003 Schneider Electric All Rights Reserved
All MCC Altivar 58 TRX AC Drive units include a digital operator keypad
display mounted on the front of the unit. Operator adjustments can be made
and diagnostics can be viewed without opening the energized enclosure. The
control station plate has pre-punched spaces for five 22-mm Telemecanique
pilot devices (factory or field installed). Several factory installed pilot devices
are listed on page 218.
Circuit breakers used on the MCC Altivar 58 TRX AC Drive basic units are
Square D Mag-Gard
®
(magnetic only) type. Fusible switches used on the
MCC Altivar 58 TRX AC Drive units are bladed switches (molded case
switches above 100 A) with Class J fuse clips installed between the drive and
the switch. Units below 125 hp include the Class J fuses factory installed.
FACTORY OPTIONS
• Bypass contactors are available as either integrated in the drive or
barriered from the drive unit.
• Input contactor.
• Output contactor.
• Extra capacity 120 Vac control power supply for customer use.
• Line reactors.
• Pilot devices.
• Unit extensions to provide additional panel space.
• Wired and unwired control relays.
• Multi-drive cabinets.
MONITORING AND INDICATION
• The front-mounted operator keypad displays setup parameters and the
last fault occurrence with four-digit display and plain, multi-language
dialog on one line of 16 characters.
• Drive parameters are factory preset for the most common adjustments
and the control schemes ordered with the unit.
• Security to prevent accidental adjustments is provided by an access-
locking switch on the back of the keypad display. Up to four different
programs can be saved in the keypad and retrieved for sharing between
multiple drive units.
Real time display of:
• Drive state (running, ready, accelerating, decelerating, etc.).
• Reference frequency (in Hertz).
• Output frequency (in Hertz).
• Motor speed (in revolutions/minute).
• Motor current (in amperes).
• Mains voltage (in volts).
• Motor thermal state (as a percentage).
• Drive thermal state (as a percentage).
• Last fault.
Drive
Cool Air
8998-009.art
Airflow of
NEMA/EEMAC
Type 1/1A MCC
Altivar 58 TRX
AC Drive Unit
Drive
Cool Air
Drive
Electronics
Enclosed
Cooling
Duct
8998-010.art
Airflow of
NEMA/EEMAC
Type 12 MCC
Altivar 58 TRX
AC Drive Unit