GE Industrial Solutions ASTAT BP - Manual (Page 29)

ASTAT BP User Manual
29 GE Industrial Solutions ©2013 GE Company All Rights Reserved
Function &
Default
Range Unit Description
Kickstart Time
0 Sec.
0 –1.0 sec. Sets ASTAT-BP’s Kickstart Time. 21
Kickstart level is 80% Un.
Intended to start high friction loads that require high starting
torque for a short time.
A pulse of 80% Un without Current Limit is initiated to break the
load free.
Kickstart Time is adjustable, 0.1–1sec. After this pulse the
voltage is ramped down to Starting Voltage setting
before ramping up again to full voltage according to the Start
Settings.
Starting Voltage
30 %
Starting Current
100 %
10-50%
After
reaching
50% the
display
changes to:
Starting
Current
100-400% 22
% of
mains
voltage
Sets the motor’s Starting Voltage.
The motor’s torque is directly proportional to the square
of the voltage.
This adjustment also determines the inrush current and
mechanical shock. A setting that is too high may cause high
initial mechanical shock and high inrush current. This can occur
even if Current Limit is set low because the Starting
Voltage setting overrides the Current Limit setting.
A setting that is too low may result in prolonged time until the
motor starts to turn. In general, this setting should ensure that
the motor starts turning immediately after start signal.
Note:
When
Starting Voltage is set its maximum value, this
displays changes to Starting Current.
When Starting Current is set the ASTAT-BP causes
current ramp instead of voltage ramp.
21
There is no Kickstart function when ASTAT-BP is connected in DELTA Conf.
22
The range of the Starting Voltage can be extended to 5-80% by using the EXPANDED SETTING as described in section 4.7.6 page 36.