Table of Contents
Advertisement
2.1 Overview
The ACS880+N5350 is designed to provide variable speed control for a cooling tower fan. This is accomplished much like
traditional variable frequency drives, but with unique capabilities specific to the type motor used and the type of application
for which the control is being employed.
The +N5350 control is designed specifically for Baldor Interior Permanent Magnet Cooling Tower Motor Control. Control
is intended for operating cooling tower fans through a 10:1 variable speed range as well as providing torque control to
minimize mechanical stress on the system. The motor drive systems are designed for direct drive applications and eliminate
the need for right angle gearboxes. The ACS880 is available for Cooling Tower applications in frame sizes R1 through R9.
Frame size specific information can be found in the ratings section.
2.2 Standards
ACS880+N5350 drives have been designed and tested to comply with the following standards.
2.2.1 Applicable Standards
The compliance with the European Low Voltage Directive is verified according to standard EN61800-5-1.
EN 60204-1:2006 + A1 2009
IEC/EN 60529:1991 + A1 2000
IEC 60664-1:2007
EN 61800-3:2004
EN 61800-5-1:2007
EN 61800-5-2:2007
UL 508C:2002
NEMA 250:2008
CSA C22.2 No. 14-10
GOST R 51321-1:2007
2.2.2 CE Marking
A CE mark is attached to the drive to verify that the drive follows the provisions of the European Low Voltage, EMC and
RoHS Directives. The CE marking also verifies that the drive, in regard to its safety functions (such as Safe torque off),
conforms with the Machinery Directive as a safety component.
2.2.3 UL Marking
cULus Listed UL Type 1 (IP21) drives:
• frames R1 to R3 of voltage range 208...240V
• frames R1 to R9 of voltage ranges 380...415V and 380...500V
• frames R5 to R9 of voltage range 525...600V
cULus Listed UL Type 12 (IP55) drives:
• frames R1 to R3 of voltage range 208...240V
• frames R1 to R5 of voltage ranges 380...415V and 380...500V
• frames R5 of voltage range 525...600V
The listing is pending for the other types. The approval is valid with rated voltages.
(See also Appendix C for recommendations for CE compliance and UL marking.)
3AXD50000011888
Table 2-1
Safety of machinery. Electrical equipment of machines.
Part 1: General requirements. Provisions for compliance: The final
assembler of the machine is responsible for installing
- emergency-stop device
- supply disconnecting device.
Degrees of protection provided by enclosures (IP code)
Insulation coordination for equipment within low-voltage systems.
Part 1: Principles, requirements and tests.
Adjustable speed electrical power drive systems.
Part 3: EMC requirements and specific test methods
Adjustable speed electrical power drive systems.
Part 5-1: Safety requirements – electrical, thermal and energy
Adjustable speed electrical power drive systems.
Part 5-2: Safety requirements – Functional
UL Standard for Safety, Power Conversion Equipment, third edition
Enclosures for Electrical Equipment (1000 Volts Maximum)
Industrial control equipment
Low-voltage switchgear and control gear assemblies.
Part 1 - Requirements for type-tested and partially type-tested assemblies
- General technical requirements and methods of tests
Chapter 2
Product Familiarization
Product Familiarization 2-1
Advertisement
Table of Contents
