Technical data

SED2 Operation and Maintenance Manual
116 Siemens Building Technologies, Inc
P1236 Compound braking current
Min: 0 Def: 0 Max: 250
Level 2
Value:
P1236=0 : Compound braking disabled.
P1236=1-250 : Level of DC braking current defined as a [%] of rated motor current (P0305).
Dependency:
Active after OFF1/OFF3 command.
Note:
Increasing the value will generally improve braking performance; however, if you set the value too high, an overcurrent trip
may result.
P1240 Configuration of Vdc controller
Min: 0 Def: 1 Max: 3
Level 3
Details:
The Vdc controller dynamically controls the DC link voltage to prevent overvoltage trips on high inertia systems.
Enum:
0 =Vdc controller disabled
1 =Vdc-max controller enabled
2 =Vdc-min controller (Kinetic buffering) enabled
3 =Vdc-max and Vdc-min controller enabled
Note:
Vdc max automatically increases ramp-down times to keep the DC-link voltage (r0026) within limits (P2172)
Vdc min is activated if DC-link voltage falls below minimum level. The kinetic energy of the motor is then used to buffer the
DC-link voltage, thus causing deceleration of the drive.
P1260 Source of changeover control
Min: 0 Def: 0 Max: 7
Level 2
Settings:
0=Bypass disabled
1=Controlled by VFD trip
2=Controlled by DIN – see 1266
3=Controlled by DIN and VFD trip
4=Controlled by VFD frequency
5=Controlled by VFD frequency and VFD trip
6=Controlled by VFD frequency and DIN
7=Controlled by VFD frequency and DIN and VFD trip
r1261 BO: Contactor control word
Min: - Def: - Max: -
Level 2
Bit Fields
Bit 00 Motor supplied by drive 0...YES, 1...NO Bit 01 Motor supplied by mains 0...YES, 1...NO
P1262 Bypass dead time
Min: 0 Def: 1.000 Max: 20.000
Level 2
P1263 De-Bypass time
Min: 0 Def: 1.000 Max: 300.0
Level 2
P1264 Bypass time
Min: 0 Def: 1.0 Max: 300.0
Level 2
P1265 Mains frequency
Min: 12.00 Def: 50.00 Max: 650.00
Level 2
P1266 BI: Bypass command
Min: 0:0 Def: 0:0 Max: 4000:0
Level 2
P1270[2] BI: Enable essential service
Min: 0:0 Def: 0:0 Max: 4000:0
Level 2
P1300 Control mode
Min: 0 Def: 0 Max: 23
Level 2
Details:
Controls relationship between speed of motor and voltage supplied by inverter.
Enum:
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 =Sensorless vector control
21 =Vector control with sensor
22 =Sensorless vector torque-control
23 =Vector torque-control with sensor
Dependency:
Limited internally to 200 Hz or 5 * rated motor frequency (P0305) when P1300 >= 20 (control mode=vector control). 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