Siemens SED2 Series User Manual

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Siemens Building Technologies SED2 variable speed drives CM1U5192en
HVAC Products Programming 01.2002
Details:
Displays actual compensated motor slip as [%
Dependency:
Slip compensation (P1335) active.
P1499 Scaling acceleration torque control
Enters scaling of acceleration in [%] for sensorless torque control (SLVC) at low frequencies.
Unit: % Min: 0.0 Def: 100.0 Max: 400.0
Level 3
Details:
Enters scaling of acceleration in [%] for sensorless torque control (SLVC) at low frequencies.
P1800 Pulse frequency
Sets pulse frequency of power switches in the variable speed drive. The frequency can be
changed in steps of 2 kHz.
Pulse frequencies > 4 kHz selected on 380-480 V units reduce the maximum continuous motor
current.
Unit: kHz Min: 2 Def: 4 Max: 16
Level 2
Details:
Sets pulse frequency of power switches in variable speed drive. The frequency can be changed in steps of 2 kHz.
Pulse frequencies > 4 kHz selected on 380-480 V units reduce the maximum continuous motor current.
Dependency:
Minimum pulse frequency depends on P1082 (maximum frequency) and P0310 (rated motor frequency).
Note:
At 4 kHz, full output current is obtained up to 50 degrees C (CT mode);over 50 degrees C, full output may be obtained at
8kHz.
If silent operation is not absolutely necessary, lower pulse frequencies may be selected to reduce variable speed drive
losses and radio-frequency emissions.
Under certain circumstances, the variable speed drive may reduce the switching frequency to provide protection against
over-temperature (see P0290, Level 3).
r1801 CO: Act. switching frequency
Actual pulse frequency of power switches in variable speed drive.
Unit: kHz Min: - Def: - Max: -
Level 3
Note:
Actual pulse frequency of power switches in variable speed drive. Under certain conditions (variable speed drive
overtemperature, see P0290), this can differ from the values selected in P1800 (pulse frequency).
P1820 Reverse output phase sequence
Changes direction of motor rotation without changing setpoint polarity.
Unit: - Min: 0 Def: 0 Max: 1
Level 3
Settings:
0=OFF
1=ON
Dependency:
If positive and negative revolution is enabled, frequency setpoint is directly used.
If both positive and negative revolution are disabled, reference value is set to zero.
Details:
See P1000 (select frequency setpoint).
P1910 Select motor data identification
Performs stator resistance measuring.
Unit: - Min: 0 Def: 0 Max: 20
Level 3
Settings:
0=Disabled
1=Identification of all parameters with parameter change
2=Identification of all parameters without parameter change
20=Set voltage vector
Dependency:
N o measurement if motor data incorrect.
P1910=1 : Calculated value for stator resistance (see P0350) is overwritten.
P1910=2 : Values already calculated are not overwritten.
Note:
Before selecting motor data identification, "Quick commissioning" has to be performed in advance.
Once enabled (P1910=1), A0541 generates a warning that the next ON command will initiate measurement of motor
parameters.
When choosing the setting for measurement, observe the following:
1. "With parameter change" means that the value is actually adopted as P0350 parameter setting and applied to the
control as well as being shown in the read-only parameters below.
2. "Without parameter change" means that the value is only displayed, i.e. shown for checking purposes in the read-
only parameter r1912 (identified stator resistance). The value is not applied to the control.
r1912[3] Identified stator resistance
Displays measured stator resistance value (line-to-line) in [ohm].
Unit: Ohm Min: - Def: - Max: -
Level 3
Index:
r1912[0] : U_phase r1912[1] : V_phase r1912[2] : W_phase
Note:
This value is measured using P1910=1 or 2 , i.e., identification of all parameters with/without change.
P2000 Reference frequency
Full-scale frequency setting used by serial link (corresponds to 4000H), analog I/O and P/D
controller.
Unit: Hz Min: 1.00 Def: 50.00 Max: 650.00
Level 2
P2001 Reference voltage
Full-scale output voltage (i.e. 100 % ) used over serial link (corresponds to 4000H).
Unit: V Min: 10 Def: 1000 Max: 2000
Level 3
Example:
P0201=230 specifies that 4000H received via USS denotes 230 V.
P2002 Reference current
Full-scale output current used over serial link (corresponds to 4000H).
Unit: A Min: 0.10 Def: 0.10 Max: 10000.00
Level 3
r2004 Reference power
Full-scale reference power used over the serial link (corresponds to 4000H).
Unit: - Min: - Def: - Max: -
Level 3

Siemens SED2 Series Specifications

General

Enclosure Rating	IP20
Control Method	V/f control, sensorless vector control
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overload, Short circuit, Ground fault
Communication Interfaces	Modbus RTU, USS
Ambient Temperature	-10°C to +50°C
Storage Temperature	-40°C to +70°C