User Guide

Table Of Contents
Honeywell Parameter Descriptions 61
10
1 = Flying start
The frequency converter is able to start also a running motor by apply-
ing a small torque to motor and searching for the frequency corre-
sponding to the speed the motor is running at. The searching starts
from the maximum frequency towards the actual frequency until the
correct value is detected. Thereafter, the output frequency will be in-
creased/decreased to the set reference value according to the set ac-
celeration/deceleration parameters.
Use this mode if the motor is rotating when the start command is given.
With the flying start, it is possible to ride through short mains voltage
interruptions
2.3 STOP FUNCTION
Two stop functions can be selected in this application:
0 = Coasting
The motor coasts to a halt without control from the frequency converter
after the Stop command.
1 = Ramp stop
After the Stop command, the speed of the motor is decelerated accord-
ing to the set deceleration parameters.
If the regenerated energy is high it may be necessary to use an exter-
nal braking resistor for to be able to decelerate the motor in acceptable
time.
2.4 START/STOP LOGIC
With this parameter the user can select the start/stop logic.
0 = DI1 = Start forward
DI2 = Start reverse (API FULL & LIMITED)
1 = DI1 = Start
DI2 = Reverse (API FULL & LIMITED)
2 = DI1 = Start pulse
DI2 = Stop pulse (API FULL & LIMITED)
3 = DI1 = Start forward, rising edge after fault
DI2 = Start reverse, rising edge after fault (API FULL & LIMITED)