4.12 Frequency converter settings and standardization
(WD200)
Standardize the rotation speed after setting the frequency converter parameters. Turn
the control selection switch S1 to position 1. The control voltage is switched on to
burner control.
Settings are in the following menu level:
Params. & Display
VSD Module
Configuration
Speed
Num Puls per R
Standardization
StandardizedSp
Setpoint Output
Settling Time
Num Puls per R
Three pulses per round. Do not change the setting manually!
Standardization
Automatic fan maximum rotation speed test. Burner control should be in
standby position when the test begins. Select
activated
from the menu to
start the test.
1. Servomotor for air drives to pre-purge position.
2. Fan motor starts.
3. Burner control steers frequency converter setting to 95 %.
When the fan reaches stable rotation speed, its value is set as
StandardizedSp
value in the menu. This value is equal to 100 % of fan
rotation speed, 5 % is reserved for possible environmental condition change.
StandardizedSp
Do not change the setting manually! Perform standardization as described
above.
SettlingTime
Rotation speed measured by frequency converter control. At stable output,
the frequency measurement result stays almost the same. If the result varies
notably, check the sensor operation.
Setpoint Output
Frequency converter control value can be set to 0…20 mA or 4…20 mA.
If automatic speed standardization is activated or a previously
standardized speed value is edited manually, the burner must be
readjusted.
4.13 Checking O
2
module (WD200)
O
2
module, connected to burner control through CAN bus, can be connected with
oxygen sensor.
48 (102)
M4263 2206EN
