Siemens CU230P-2 HVAC Parameter Manual page 165

p1267 Bypass changeover source configuration / Chngov_src config
Access level: 2
Can be changed: U, T
Min
-
Description: Sets the cause that should initiate the bypass.
Bit field: Bit Signal name
00 Bypass via signal (BI: p1266)
01 Bypass via reaching the speed threshold
Note: The parameter only has an effect for a non-synchronized bypass.
p1267 bit 0 = 1:
The bypass is initiated by setting a binary signal. When the command is reset, after the debypass delay time
(p1263) has expired, operation at the Motor Module is re-selected.
p1267 bit 1 = 1:
When the speed threshold entered in p1265 is reached, the bypass is switched in. The system only switches back
when the speed setpoint again falls below the threshold value.
p1269[0...1] BI: Bypass switch feedback signal / Bypass FS
Access level: 3
Can be changed: U, T
Min
-
Description: Sets the signal source for the feedback signal of the bypass switch.
Index: [0] = Switch motor - drive
[1] = Switch motor - line supply
Note: In the case of switches without a feedback signal, connect the corresponding control bit as the signal source:
p1269 index 0 = r1261 bit 0
p1269 index 1 = r1261 bit 1
Entering p1269 = 0 sets this parameter assignment automatically for switches without a feedback signal.
p1274[0...1] Bypass switch monitoring time / Switch t_monit
Access level: 3
Can be changed: U, T
Min
0 [ms]
Description: Sets the bypass switch monitoring time.
Index: [0] = Switch motor - drive
[1] = Switch motor - line supply
Note: The monitoring is deactivated with p1274 = 0 ms. The changeover time for the bypass (p1262) is extended by the
time set in this parameter.
© Siemens AG 2009 All Rights Reserved
SINAMICS G120 Control Units CU230P-2 Parameter Manual (LH9), 11/2009
Calculated: -
Scaling: -
Max
-
1 signal
Yes
Yes
Calculated: -
Scaling: -
Max
-
Calculated: -
Scaling: -
Max
5000 [ms]
Parameters
List of Parameters
Data type: Unsigned8
Data set: -
Factory setting
0000 bin
0 signal
No
No
Data type: U32 / Binary
Data set: -
Factory setting
1261.0
Data type: FloatingPoint32
Data set: -
Factory setting
1000 [ms]
FP
-
-
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