User manual

P15 Stop Mode CFN 14
LED Display LCD Display
Range LED LCD Description
CoS Coast Coast to stop. (Default)
SdcL Volt Decel Open loop voltage deceleration.
tdcL TT Decel TruTorque deceleration.
dcb DC Brake DC Braking.
Description Coast:
A coast to stop should be used when no special stopping requirements are necessary; Example: crushers, balls
mills, centrifuges, belts, conveyor. The bypass contactor is opened before the SCRs stop gating to reduce
wear on the contactor contacts.
Voltage Decel:
In this mode, the starter linearly phases-back the SCRs based on the parameters Decel Begin Level, Decel End
Level, and Decel Time.
TruTorque Decel:
In this mode, the starter linearly reduces the motor torque based on the Decel End Level and Decel Time.
DC Brake:
In this mode the starter provides D.C. injection for frictionless braking of a three phase motor.
z NOTE: The MX
2
stops the motor when any fault occurs. Depending on the application, it may be
desirable for the motor to be stopped in a controlled manner (Voltage Decel, TT Decel or D.C. Braking)
instead of being allowed to coast to a stop when this occurs. This may be achieved by setting the Controlled
Fault Stop Enable (P43 / PFN12) parameter to "On". Be aware, however, that not all fault conditions allow
for a controlled fault stop.
See Also Decel Begin Level (P16 / CFN 15) parameter on page 88.
Decel End Level (P17 / CFN 16) parameter on page 89.
Decel Time (P18 / CFN 17) parameter on page 90.
DC Brake Level (P19 / CFN 18) parameter on page 91.
DC Brake Time (P20 / CFN 19) parameter on page 92.
DC Brake Delay (P21 / CFN 20) parameter on page 93.
Controlled Fault Stop Enable (P43 / PFN 12) parameter on page 105.
Digital Input Configuration (P48-P50 / I/O 01-03) parameters on page 110.
Relay Output Configuration (P52-P54 / I/O 05-07) parameters on page 112.
Theory of Operation section 7.4, Deceleration Control on page 149.
Theory of Operation section 7.5, Braking Controls on page 151.
87
6 - PARAMETER DESCRIPTION
CFN: Stop Mode
14 Coast