GE Industrial Solutions ASTAT-CD Plus - Manual (Page 21)

Function Display Description Default Range Unit
4-5. Basic block parameters. -BAS-
Current limit
Starting torque
Ramp up time
Ramp down time
Kick start (1)
DC Brake time (1)
DC Brake Current (1)
L x x x
T x x
a x x
d x x x
p x x x
b x x
I x x x
L 4 0 0
t 2 5
a 1 5
d 0 2 0
p 0 0 0
b 0 0
I 0 5 0
Sets Device current limit. Sets motor starting current limit
if parameter "N" is properly adjusted.
The maximum range setting is automatically calculated
by the unit according the following expression:
Lmax=450 (Ir/In); Max. 700
Sets the initial voltage applied to the motor.
Sets Voltage ramp up time. Motor acceleration time will
depend of load conditions.
Sets Voltage ramp down time. Motor deceleration time
will depend of load conditions.
Enabled only if the parameter "Sxxx" is ON.
During the time adjusted, provides 95% of full voltage to
motor at starting time. Useful for high static-friction loads
Enabled only if the parameter "Pxxx" is ON.
Provides DC braking at stopping time.
Enabled only if the parameter "Bxxx" is ON.
100-Lmax
10-90
01-99
001-120
000-999
00-99
000-250
%
%
sec.
sec.
ms.
sec.
%
4-5-1. Basic Functions
4. Programming
4-6
Function Display Description Default Range
4-5-2. Programmable basic functions
Soft stop selector
Pump control selector
Pump curve selection
at starting phase
Pump curve selection
at stopping phase
Kick start selector
Override selector
S x x x
C x x x
S T X X
S P X X
P x x x
F x x x
S O F F
C O F F
S T 0 2
S P 0 2
P O F F
F O F F
Enables or disables all modes of Soft stop.
Enables the Pump control function. Usefull to limit fluid hammering.
The parameter "Sxxx" must also be enabled.
NOTE: Parameters "p ", "b " and "I " are disabled while "C" is ON
Choice of various pump control algorithms for starting:
0: Voltage ramp up
01-03: Various pump algorithms
Choice of various pump control algorithms for stopping phase:
0: Voltage ramp down
01-05: Various pump algorithms
Enables or disables the Kick start function.
If Pump control function “C” is enabled, both Kick start and DC Brake
functions are internally disabled.
When this function is enabled, the unit provides constant full voltage
after starting, producing the lowest harmonic distortion. Note that the
energy saving function is disabled when Override is enabled.
OFF, ON, I3, I4
OFF, ON, I3, I4
00-03
00-05
OFF, ON, I3, I4
OFF, ON, I3, I4
Notes:
- Curve 0 (both ST00, SP00): Standard voltage ramp up -starting- and ramp down -soft stop-
- Curve 1 (both ST01, SP01): Pump Algorithm based on estimated average PF -power factor- , with large sampling period.
- Curve 2 (both ST02, SP02): Pump Algorithm based on instantaneous PF with short sampling period.
- Curve 3 (both ST03, SP03): Pump Algorithm based on estimated average PF with short sampling period. Application: low pressure
system/low flow rate change.
- Curve 4 (SP04): Same as Curve 3, but with higher accuracy on PF average estimation. Application: high head pressure/low flow rate change.
- Curve 5 (SP05): Pump Algorithm based on former ASTAT-CD.
% In
Note: (1) Parameters "p ", "b " and "I " are disabled while "C" is ON.