50/126
Siemens Building Technologies
SED2 variable speed drives
CM1U5192en
HVAC Products
Commissioning
01.2002
"Busy" signal
In some cases, the BOP displays
for a maximum of 5 seconds while
parameters are being changed.
This means that the variable speed drive is busy
with higher-priority activities.
You can change motor parameters only if P0010 = 1.
You can adjust individual digits in the display to quickly change a parameter value as
follows:
Make sure that you are at the level that allows for changing parameter values
(see section 5.4.4.2 Setting parameters with the BOP or AOP).
1.
Press
(function button) – the rightmost digit starts to flash.
2.
Change the value of this digit by pressing the
/
buttons.
3.
Pressing the
button again causes the next digit to start flashing.
4.
Repeat steps 2 to 4 until the required value is displayed.
5.
Press
to exit the parameter change level.
5.4.5
Resetting SED2 parameters to the factory settings
1.
Parameter P0010 = 30
Parameter P0970 = 1
2.
Now press
to restore the factory settings of the VSD.
The reset process takes approximately 10 seconds.
Refer to the default values in the system parameter list for the factory settings of the
parameters.
5.4.6
Basic operation with the BOP
Ø
P0010 = 0 to ensure the correct initialization of the RUN command.
Ø
P0700[1] = 1 to enable the start/stop button on the BOP (factory setting).
Ø
P1000[1] = 1 to enable the motor potentiometer setpoints (factory setting).
1.
Press the green button
to start the motor.
2.
With the motor running, press
.
The motor speed increases to 50 Hz.
3.
When the variable speed drive reaches 50 Hz, press
.
The motor speed and the value displayed now decrease.
4.
Use P1820 to change the direction of rotation.
Note: You can also change the direction of rotation via an appropriately configured
digital input.
5.
To stop the motor, press the red “STOP” button
.
5.4.7
10 Hz test
The 10 Hz test helps check the installation of both motor and VSD. It helps verify the
direction of rotation and the basic functions of the VSD.
This ensures that a possible faulty installation of the power section is detected early on.
Testing with the BOP
1.
Restore the factory settings in the SED2. Refer to section 5.4.5.
2.
Press
to switch to manual operation.
3.
Press
to switch the device on.
Notes
.
.
.
.
Changing individual
digits of the parameters
Note
.
.
.
.
Prerequisites
Содержание SED2 Series
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