ABB DCS550 User Manual

230
Signal and parameter list
3ADW000379R0501 DCS550 Manual e e
Signal / Parameter name
min.
max.
def.
unit
45.02 M1PosLimCtrl (positive voltage limit for field exciter)
Positive voltage limit for the field exciter in percent of the maximum field exciter output voltage.
Example:
With a 3
-phase supply voltage of 400 V
AC
the field current controller can generate a maximum output voltage
of 521 V
DC
. In case the rated field supply voltage is 200 V
DC
, then it is possible to limit the controller’s output
voltage to 46 %. That means the firing angle of the field current contro
ller is limited in such a way that the
average output voltage is limited to a maximum of 230V
DC
.
Int. Scaling: 100 = 1 % Type: I Volatile: N
0
100
100
%
45.03 - 45.17 Unused
45.18 FldMinTripDly (delay field current minimum trip)
FldMinTripDly (45.18)
delays F541 M1FexLowCur [FaultWord3 (9.03) bit 8]. If the field current recovers
before the delay is elapsed
F541 will be disregarded:
−
M1FldMinTrip (30.12)
Int. Scaling: 1 == 1 ms Type: I Volatile: N
50
10000
2000
ms
Group 50: Speed measurement
50.01 M1SpeedScale (speed scaling)
Speed scaling in rpm.
M1SpeedScale (50.01) defines the speed - in rpm - that corresponds to 20,000 internal
speed units. The speed scaling is released when
M1SpeedScale (50.01) ≥ 10:
−
20,000 speed units == M1SpeedScale (50.01), in case M1SpeedScale (50.01) ≥ 10
−
20,000 speed units == maximum absolute value of M1SpeedMin (20.01) and M1SpeedMax (20.02), in
case M1SpeedScale (50.01) < 10
Mathematically speaking:
If
(50.01) ≥ 10 then 20,000 == (50.01) in rpm
If
(50.01) < 10 then 20,000 == Max [|(20.01)|, |(20.02)|] in rpm
The actual used speed scaling is visible in
SpeedScale Act (2.29).
Notes:
−
M1SpeedScale (50.01)
has to be set in case the speed is read or written by means of an overriding control
via fieldbus.
−
M1SpeedScale (50.01) is must be set in the range of:
0.625 to 5 times of M1BaseSpeed (99.04), because the maximum amount of speed units is 32,000.
If the scaling is out of range A124 SpeedScale [AlarmWord2 (9.07) bit 7] is generated.
Commissioning hint:
−
Set M1SpeedScale (50.01) to maximum speed
−
Set M1BaseSpeed (99.04) to base speed
−
Set M1SpeedMax (20.02) / M1SpeedMin (20.01) to ± maximum speed
Int. Scaling: 10 == 1 rpm Type: I Volatile: N
0
6500
0
rpm
50.02 Unused

ABB DCS550 Specifications

General

Brand	ABB
Model	DCS550
Category	DC Drives
Language	English