Siemens CU230P-2 HVAC Parameter Manual page 285

p2374 Staging delay time / Staging t_del
Access level: 3
Can be changed: U, T
Min
0 [s]
Description: Additional wait time for the connection of external motors on the line voltage (staging) after the system deviation of
the technology controller has exceeded the threshold value p2373 and the motor has reached the maximum speed.
Dependency: Refer to: p2373
Note: If the deviation at the technology controller input exceeds the staging overcontrol threshold p2376, the delay time is
bypassed.
p2375 Destaging delay time / Destaging t_del
Access level: 3
Can be changed: U, T
Min
0 [s]
Description: Additional wait time for the disconnection of external motors from the line (destaging) after the system deviation of
the technology controller has exceeded the threshold p2373 and the motor has reached the minimum speed p1080.
Dependency: Refer to: p2373, p2376
Note: If the deviation at the technology controller input exceeds the staging overcontrol threshold -p2376, the delay time
is bypassed.
p2376 Staging overcontrol threshold / Stag ovrctrl_thr
Access level: 3
Can be changed: U, T
Min
0.0 [%]
Description: Threshold value for the non-delayed switching-in (staging) or delayed switching-out (destaging) of external motors.
Destaging is executed if the minimum speed is reached and the wait time in p2385 expires simultaneously.
Note: If the technology controller deviation exceeds the parameterized value, the external motor is connected to the line
voltage immediately, and the switching-in delay (p2374) is disregarded.
p2377 Staging lockout time / Staging t_lock
Access level: 3
Can be changed: U, T
Min
0 [s]
Description: Lockout time during which, following the connection or disconnection of an external motor, no further motors are
connected or disconnected by means of staging/destaging. This avoids duplicate switching operations.
p2378 Staging/Destaging speed / Stag/Destag speed
Access level: 3
Can be changed: T
Min
0.0 [%]
Description: Sets the speed for the main drive, which is approached directly after an external motor has been connected or dis-
connected (staging/destaging).
The parameter value refers to the maximum speed (p1082).
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Calculated: -
Scaling: -
Max
650 [s]
Calculated: -
Scaling: -
Max
650 [s]
Calculated: -
Scaling: PERCENT
Max
200.0 [%]
Calculated: -
Scaling: -
Max
650 [s]
Calculated: -
Scaling: -
Max
100.0 [%]
Parameters
List of Parameters
Data type: Unsigned16
Data set: -
Factory setting
30 [s]
Data type: Unsigned16
Data set: -
Factory setting
30 [s]
Data type: FloatingPoint32
Data set: -
Factory setting
25.0 [%]
Data type: Unsigned16
Data set: -
Factory setting
0 [s]
Data type: FloatingPoint32
Data set: -
Factory setting
50.0 [%]
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