Speed Estimation; Ambient Conditions - ABB FSO-21 User Manual

Speed estimation

Speed range
Accuracy
Operational frequency

Ambient conditions

Altitude
Air temperature
Relative humidity
Vibration
For the environmental limits for the drive, refer to the hardware manual of your drive.
Allowed range depends on the used motor.
Maximum range: (-30000...+30000 rpm)/(number of motor pole
pairs).
The speed estimation error is ± motor slip.
With synchronous motors, there can be small estimation ripples
at the zero speed region (below 10 rpm).
Drive output up to 500 Hz
Operation
installed for
stationary use
0...1000 m
(0...3300 ft) above
sea level, no derating
required
1000...2000 m
(3300...6600 ft)
above sea level, air
outside the module
derated to
-15...+49 °C
(+5...+120 °F)
2000...4000 m
(6600...13200 ft)
above sea level, air
outside the module
derated to
-15...+40 °C
(+5...+104 °F)
-15...+70 °C
(+5...+158 °F)
5...95%,
no condensation
allowed
Frequency range:
2...9 Hz: Constant deflection = 7 mm
9...200 Hz: Constant acceleration = 20 m/s
Technical data 429
Storage
in the protective
package
-
-40...+70 °C
(-40...+158 °F)
5...95%,
no condensation
allowed
2
Transportation
in the protective
package
-
-40...+70 °C
(-40...+158 °F)
5...95%,
no condensation
allowed