Operating instructions

Functions

5.10 Technological functions

CU240S and CU240E Control Units, FW 3.2

142 Operating Instructions, 03/2009, A5E02440075B AA

WARNING

When the "automatic restart" function is active (P1210 > 1), a motor can restart

automatically once the power has been restored. This is particularly critical if it is incorrectly

assumed that the motors have been shut down after a long power failure.

For this reason, death, serious injury, or considerable material damage can occur if

personnel enters the working area of motors in this condition.

Commissioning the automatic restart

1. Parameterizing the automatic restart using P1210

2. Set the number of start attempts via P1211.

3. If, for an automatic restart, the inverter is to be connected to an already rotating motor,

then the 'flying restart' function should also be activated using P1200.

4. Make sure that this functions properly.

Parameterizing the automatic restart

Table 5- 60 Parameterizing the automatic restart

Parameter

P1210 = Automatic restart mode

0: Automatic restart locked

1: Fault acknowledgment after an ON command; P1211 locked (factory setting)

2: Automatic restart after a power failure; P1211 locked

3: Automatic restart after a line supply undervoltage or fault; P1211 enabled

4: Automatic restart after a line supply undervoltage; P1211 enabled

5: Automatic restart after a power failure and fault; P1211 locked

6: Automatic restart after a line supply undervoltage / failure or fault; P1211 locked

P1211 = Number of automatic restart attempts [minimum 0 ... maximum 10]

3 (factory setting)

P1200 = Flying restart (Page 139)