GE Industrial Solutions ASTAT BP User Manual
Page 36
ASTAT BP User Manual
36
GE Industrial Solutions
©2013 GE Company All Rights Reserved
4.7.6
Slow Speed & Expnd Parameters
30
– page 5
Function &
Default
Range
Unit
Description
Slow Speed TRQ.
8
1(MIN.) –
10(MAX.)
Sets Slow Speed Torque.
Determines the torque while motor is operating at 1/6 of
nominal speed. Refer to section 4.7.8.1 on page 41.
Max Slow SP Time
30 SEC.
1-30sec.
31
Sets the maximum time for Slow Speed Torque operation.
Determines the maximum allowable operation time at slow
speed.
ASTAT-BP will trip when this time is exceeded and a
Slow
Speed Time message will display.
WARNING
Operating current while motor is running at 1/6 speed is
much higher than nominal current and motor ventilation is
much weaker. Special caution must be taken to prevent
overheating when running the motor at slow speed for long
periods of time.
EXPAND SETTINGS
Disabled
Enabled/
Disabled
Sets some parameters limits. Refer to section 4.7.6.1 below.
Store Settings
Slow SP & Expnd
Same as
Store Settings Main Settings on page 28.
44..77..66..11
EXPAND SETTINGS
Parameter
EXPAND SETTINGS Disabled
EXPAND SETTINGS Enabled
Starting Voltage
10-50%
5
(1)
-80%
Current Limit
100-400%
100-500%
Ramp UP Time
1-30 seconds
1-90 seconds
Ramp DOWN Time
0-30 seconds
0-90 seconds
Max. Star Time
1-30 seconds
1-250 seconds
Phase Loss
Enabled
(2)
Enabled / Disabled
(2)
Max Slow SP Time
1-30 seconds
1-250 seconds
O/C or WR. CON protection in
Inside Delta mode.
Protection active in normal set
(3)
Protection active in high set
(3)
Notes:
(1)
Setting the
Starting Voltage to lower than 10% is not practical for loaded motors.
(2)
Refer to section 7 page 56. See
Phase Loss protection and refer to the warning below.
(3)
Refer to section 7 page 56. See
OC or Wrong CON. protection.
30
Displays in MAXIMIZED MODE only. To change to this mode refer to parameter DISPLAY MODE on section 4.7.2 page 26.
31
The range of the Max Slow SP Time can be extended to 1-60 by using the EXPANDED SETTING as described in section 4.7.6 page 36.