Firmware Manual

9000X AF Drives
MN04004001E
For more information visit: www.eaton.com
A-1
August 2010
Appendix A — Additional Information
In this chapter you will find additional information on special parameter groups. Such
groups are:
● Parameters of External Brake Control with Additional Limits (see below)
● Closed Loop Parameters (see Page A-3)
● Advanced Open Loop Parameters (see Page A-4)
● Parameters of Motor Thermal Protection (see Page A-4)
● Parameters of Stall Protection (see Page A-4)
● Parameters of Underload Protection (see Page A-5)
● Fieldbus Control Parameters (see Page A-5)
External Brake Control with Additional Limits
ID315, ID316, ID346 to ID349, ID352, ID353
The external brake used for additional braking can be controlled through ID315, ID316, ID346
to ID349 and ID352/ID353. Selecting On/Off Control for the brake, defining the frequency or
torque limit(s) the brake should react to and defining the Brake-On/-Off delays will allow an
effective brake control. See Figure A-1.
Figure A-1: Brake Control with Additional Limits
In Figure A-1 the brake control is set to react to both the torque supervision limit (ID349) and
frequency supervision limit (ID347). Additionally, the same frequency limit is used for both
brake-off and brake-on control by giving ID346 the value 4. Use of two different frequency
limits is also possible. Then ID315 and ID346 must be given the value 3.
Brake-off: In order for the brake to release, three conditions must be fulfilled: 1) the drive
must be in Run state, 2) the torque must be over the set limit (if used) and 3) the output
frequency must be over the set limit (if used).
Torque Limit
ID349
START
STOP
Brake Off
Brake On
Brake-Off
Delay;
ID352
Frequency Limit
ID347
Brake-On Delay;
ID353