Siemens CU230P-2 HVAC Parameter Manual page 282

Parameters
List of Parameters
r2344 CO: Technology controller last speed setpoint (smoothed) / Tec_ctrl n_setp_sm
Access level: 3
Unit: [%]
Description: Displays the smoothed speed setpoint of the technology controller prior to switching to operation with fault response
(see p2345).
Dependency: Refer to: p2345
Note: The smoothing time is 10 s.
p2345 Technology controller fault response / Tech_ctrl flt resp
Access level: 3
Can be changed: U, T
Min
0
Description: Sets the response of the technology controller to the occurrence of a fault F07426 (technology controller actual
value limited). The fault response is executed if status bits 8 or 9 in technology controller status word r2349 are set.
If both status bits are zero, a switch back to technology controller operation will follow.
Value: 0:
1:
2:
Dependency: The parameterized fault response is only effective if the technology controller mode is set to p2251 = 0 (technology
controller as main setpoint).
Refer to: r2344
Refer to: F07426
Notice: Dependent upon the application, the changing over of the setpoint when fault F07426 occurs can lead to the fault
condition disappearing and the reactivation of the technology controller. This can repeat itself and cause limit oscil-
lations. In this case a suitable fault response or a different fixed setpoint 15 for the fault response p2345 = 2 should
be selected.
Note: The parameterized fault response can only be achieved if the default fault response of the technology controller
fault F07426 is set to "NONE" (see p2100, p2101). If a fault response other than "NONE" is entered in p2101 for
F07426, p2345 must be set to zero.
If the fault occurs during ramping up to the starting setpoint p2302, this starting setpoint is retained as the final value
(there is no changeover to the fault response setpoint).
r2349.0...12 CO/BO: Technology controller status word / Tec_ctrl stat word
Access level: 3
Unit: -
Description: Displays the status word of the technology controller.
Bit field: Bit Signal name
00 Technology controller deactivated
01 Technology controller limited
02 Technology controller, motorized potentiometer
limited max.
03 Technology controller, motorized potentiometer
limited min.
04 Technology controller speed setpoint total in set-
point channel
05 Technology controller RFG bypassed in the set-
point channel
06 Technology controller starting value at the cur-
rent limit
08 Technology controller actual value at the mini-
mum
09 Technology controller actual value at the maxi-
mum
10 Technology controller output at the minimum
11 Technology controller output at the maximum
12 Fault response active
1-282
Function inhibited
On fault: Changeover to r2344 (or p2302)
On fault: Changeover to p2215
Calculated: -
Scaling: PERCENT
Calculated: -
Scaling: -
Max
2
Calculated: -
Scaling: -
1 signal
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Data type: FloatingPoint32
Data set: -
Data type: Integer16
Data set: -
Factory setting
0
Data type: Unsigned32
Data set: -
0 signal
No
No
No
No
No
No
Yes
No
No
No
No
No
© Siemens AG 2009 All Rights Reserved
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