Siemens sed2 Commissioning Manual page 65

P1260 Source of changeover control
Selects the possible sources for contactor changeover control
Unit: - Min: 0
Settings: 0 Bypass disabled
1 Controlled by VSD trip
2 Controlled by DIN - see P1266
3 Controlled by DIN and VSD trip
4 Controlled by VSD frequency
5 Controlled by VSD frequency and VSD trip
6 Controlled by VSD frequency and DIN
7 Controlled by VSD frequency and DIN and VSD trip
r1261 BO: Contactor control word
Output word from the bypass feature that allows external connections to be made
Unit: - Min: -
Bit fields:
Bit00
Bit01
P1262 Bypass dead time
Time delay between switching contactors to allow motor to allow motor to demagnetize
Unit: s Min: 0
P1263 De-Bypass time
Time delay before a request to switch back to the VSD is acted upon
Unit: s Min: 0
P1264 Bypass time
Time delay before a request to switch to mains is acted upon
Unit: s Min: 0
P1265 Mains frequency
Mains frequency
Unit: Hz Min: 12.00
P1266 BI: Bypass command
Mains frequency
Unit: - Min: 0:0
P1270[2] BI: Enable essential service
Unit: - Min: 0:0
P1300 Control mode
Controls relationship between speed of motor and voltage supplied by the VSD.
Unit: - Min: 0
Settings: 0=V/f with linear characteristics.
1=V/f with FCC
2=V/f with parabolic characteristics
3=V/f with programmable characteris-
tics
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.
Unit: % Min: 0.0
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 (accel-
eration 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
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
Details: Setting the starting boost (P1312) too high will cause the VSD to limit the current, which will in turn restrict the output
frequency to below the setpoint frequency
See note in P1310 for boost priorities.
Siemens Building Technologies
HVAC Products
Def: 0
Def: -
Motor supplied by VSD
Motor supplied by mains
Def: 1.000
Def: 1.0
Def: 1.0
Def: 50.00
Def: 0:0
Def: 0:0
Def: 2
Def: 50.0
Def: 0.0
Def: 0.0
Commissioning Guide
10 Parameterization
Max: 7
Max: -
0 YES, 1
0 YES, 1
Max: 20.000
Max: 300.0
Max: 300.0
Max: 650.00
Max: 4000:0
Max: 4000:0
Max: 23
4=V/f with ECO mode
5=V/f for textile applications
6=V/f with FCC for textile applications
Max: 250.0
Max: 250.0
Max: 250.0
NO
NO
20=Not used
21=Not used
22=Not used
23=Not used
Level 2
Level 2
Level 2
Level 2
Level 2
Level 2
Level 2
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Level 3
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CM1G5192en
26.02.2003