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Siemens Building Technologies
SED2 variable speed drives
CM1U5192en
HVAC Products
Programming
01.2002
P1270[2]
BI: Enable essential service
Unit: -
Min: 0:0
Def: 0:0
Max: 4000:0
Level 3
P1300
Control mode
Controls relationship between speed of motor and voltage supplied by the variable speed drive
as illustrated in the diagram below
Unit: -
Min: 0
Def: 1
Max: 23
Level 3
Details:
Controls relationship between speed of motor and voltage supplied by variable speed drive.
Settings:
0 =V/f with linear charac.
1 =V/f with FCC
2 =V/f with parabolic charac.
3 =V/f with programmable charac.
4 =V/f with ECO mode
5 =V/f for textile applications
6 =V/f with FCC for textile applications
19 =V/f control with independent
voltage setpoint
20 =not used
21 =not used
22 =not used
23 =not used
Dependency:
The value is displayed in r0209 (maximum frequency).
Note:
P1300=1 : V/f with FCC
* Maintains motor flux current for improved efficiency
* If FCC is chosen, linear V/f is active at low frequencies.
P1300=2 : V/f with a quadratic curve
* Suitable for centrifugal fans / pumps
P1310
Continuous boost
Defines the boost level in [%] relative to P0305 (rated motor current) applicable to both linear
and quadratic V/f curves according to the diagram below:
Unit: %
Min: 0.0
Def: 50.0
Max: 250.0
Level 3
Details:
Defines boost level in [%] relative to P0305 (rated motor current) applicable to both linear and quadratic V/f curves.
Dependency:
Setting in P0640 (motor overload factor [%]) limits the boost.
Note:
The boost values are combined when continuous boost (P1310) used in conjunction with other boost parameters
(acceleration boost P1311 and starting boost P1312). However priorities are allocated to these parameters as follows:
P1310 > P1311 > P1312
Increasing the boost levels increases motor heating (especially at standstill).
P1311
Acceleration boost
Applies boost in [%] relative to P0305 (rated motor current) following a positive setpoint
change and drops back out once the setpoint is reached.
Unit: %
Min: 0.0
Def: 0.0
Max: 250.0
Level 3
Details:
Applies boost in [%] relative to P0305 (rated motor current) following a positive setpoint change and drops back out once
the setpoint is reached.
Dependency:
Setting in P0640 (motor overload factor [%]) limits boost.
Note:
Acceleration boost can help to improve response to small positive setpoint changes.
P1312
Starting boost
Applies a constant linear offset (in [%] relative to P0305 (rated motor current)) to active V/f
curve (either linear or quadratic) after an ON command and is active until setpoint is reached
for the first time. This is useful for starting loads with high inertia.
Unit: %
Min: 0.0
Def: 0.0
Max: 250.0
Level 3
Details:
Applies a constant linear offset (in [%] relative to P0305 (rated motor current)) to active V/f curve (either linear or
quadratic) after an ON command and is active until setpoint is reached for the first time. This is useful for starting loads
with high inertia.
Setting the starting boost (P1312) too high will cause the variable speed drive to limit the current, which will in turn
restrict the output frequency to below the setpoint frequency.
Dependency:
Setting in P0640 (motor overload factor [%]) limits boost.
Note:
Increasing the boost levels increases motor heating.
Σ
Boosts = 300 / lmot * Rs
Priorities are allocated to the boost parameters as follows:
P1310 > P1311 > P1312
P1335
Slip compensation
Dynamically adjusts output frequency of variable speed drive so that motor speed is kept
constant independent of motor load.
Unit: %
Min: 0.0
Def: 0.0
Max: 600.0
Level 3
Details:
Dynamically adjusts output frequency of variable speed drive so that motor speed is kept constant independent of motor
load.
Value:
P1335= 0 % : Slip compensation disabled.
P1335=100 % : This uses the motor data and motor model to add the rated slip frequency rated motor speed and rated
motor current.
Note:
Gain adjustment enables fine-tuning of the actual motor speed (see P1460 - gain speed control).
100%=standard setting for warm stator
P1336
Slip limit
Compensation slip limit in [%] relative to r0330 (rated motor slip), which is added to frequency
setpoint.
Unit: %
Min: 0
Def: 250
Max: 600
Level 3
Details:
Compensation slip limit in [%] relative to r0330 (rated motor slip), which is added to frequency setpoint.
Dependency:
Slip compensation (P1335) active.
r1337
CO: V/f slip frequency
Displays actual compensated motor slip as [%]
Unit: %
Min: -
Def: -
Max: -
Level 3
Содержание SED2 Series
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