● Temperature monitoring for the motor
The inverter evaluates the temperature sensor in the motor, also for line operation of the
motor.
Motor protection with temperature sensor (Page 325)
● Disconnecting the inverter from the line supply
If for line operation of the motor, you disconnect the inverter from the line supply, the inverter
opens the K2 contactor and the motor coasts down.
To operate the motor on the line supply also for deactivated inverter, the higher-level control
must supply the signal for the K2 line contactor.
Setting parameters of the bypass function
Parameter Description
p0347 Motor de-excitation time
p1260 Bypass configuration (factory setting: 0)
0: Bypass is deactivated
3: Bypass is activated
r1261 Bypass control/status word
.00 1 signal: Close K1 inverter contactor command
.01 1 signal: "Close K2 inverter contactor" command
.05 1 signal: "K1 inverter contactor is closed" feedback
.06 1 signal: "K2 line contactor is closed" feedback
.07 1 signal: Bypass command (for p1266) is active
.10 1 signal: Bypass in the process operation is active
.11 1 signal: Bypass is enabled
p1262 Bypass dead time (factory setting: 1 s)
Changeover time of the contactor. Setting condition: p1262 > p0347
p1263 Bypass delay time (factory setting: 1 s)
Delay time for switching from line operation to inverter operation.
p1264 Bypass delay time (factory setting: 1 s)
Delay time for switching from inverter operation to line operation.
p1265 Bypass speed threshold (factory setting: 1480 rpm)
Speed threshold for switching to line operation.
p1266 BI: Bypass control command (factory setting: 0)
Signal source for the "Bypass" function control command
p1267 Bypass changeover source configuration (factory setting: 0000 bin)
Changeover to bypass mode via the speed threshold or the control signal.
.00 1 signal: Changeover for activation via the control command p1266
.01 1 signal: Bypass when reaching the speed threshold
p1269 BI: Bypass switch feedback
Signal source for contactor feedback of the contactor.
[00] K1 inverter contactor (factory setting: 1261.0)
[01] K2 line contactor (factory setting: 1261.1)
Advanced commissioning
6.36 Bypass
Converter with the CU230P-2 Control Units
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE 355
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