Siemens CU230P-2 HVAC Parameter Manual page 290

Parameters
List of Parameters
p2396[0...n] Hibernation max. shutdown time / Hib t_shutd max
Access level: 3
Can be changed: U, T
Min
0 [s]
Description: Sets the maximum shutdown time for the "Hibernation" function.
If the drive is in hibernation (pulse inhibit) then it is powered up again at the latest after the maximum power-down
time has expired. If the restart conditions are fulfilled earlier, then the drive is correspondingly powered up earlier.
Danger: The drive automatically powers itself up at the latest after the maximum power-down time has expired.
Caution: Once the maximum shutdown time has expired, the drive switches itself on automatically and accelerates to the
start speed. The technology controller only becomes effective again when this speed is reached (for p2398 = 1).
Depending on the application, e.g. for pumps, it should be ensured that as a result of cyclic starts the tank does not
overflow or for compressors, an overpressure condition does not occur.
Note: Automatic restart once the maximum OFF time has elapsed can be deactivated by setting p2396 = 0 s.
r2397[0...1] CO: Hibernation output speed actual / Hib n_outp act
Access level: 3
Unit: [rpm]
Description: Displays the actual output speed for the "Hibernation" function.
Note: Zero is displayed if the boost or starting speed is not active.
p2398 Hibernation operating mode / Hib op_mode
Access level: 3
Can be changed: T
Min
0
Description: Sets the operating mode for the hibernation function.
Value: 0:
1:
Dependency: Refer to: p2200, p2251
Refer to: A07325
Caution: When this function is active, the motor can start again automatically.
Note: When the hibernation function (p2398 = 1) is activated, its behavior is defined as to whether the technology control-
ler is additionally switched in (closed loop) or switched out (open loop).
p2200 is used to define the technology controller enable and p2251 its operating mode.
p2200 = 0, p2251 = 0, 1:
Hibernation operates without technology controller (open loop)
p2200 = 1, p2251 = 0:
Hibernation operates with technology controller (closed loop)
p2200 = 1, p2251 = 1:
Hibernation operates without technology controller (open loop) as its output is only used as supplementary setpoint
and not as main speed setpoint.
1-290
Hibernation inhibited
Hibernation active
Calculated: -
Scaling: -
Max
863999 [s]
Calculated: -
Scaling: p2000
Calculated: -
Scaling: -
Max
1
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Data type: FloatingPoint32
Data set: DDS, p0180
Factory setting
0 [s]
Data type: FloatingPoint32
Data set: -
Data type: Integer16
Data set: -
Factory setting
0
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