09.02 Start-Up
Siemens AG 6SE7087-6AK85-1AA0
4-21
Rectifier/Regenerating Unit Operating Instructions
Bit 12: Regenerating enable command (H "Regenerating enable")
The REGENERATING ENABLE command is executed with an H signal.
After the command has been accepted:
♦ The regenerating bridge of the rectifier/regenerating unit is enabled (firing pulse enable).
Bit 12: Regenerating inhibit command (L "Regenerating inhibit")
The REGENERATING INHIBIT command is executed with an L signal.
After the command has been accepted:
♦ The regenerative branch of the rectifier/regenerating unit is inhibited (firing pulse inhibit).
Bit 13: Fault, external 3 command (L "Fault, external 3")
The command is executed with an L signal.
After the command has been accepted:
♦ Changeover to the FAULT status (007) (fault F038)
The firing pulses are inhibited and the main contactor, if installed, drops out (see also Chapter 7 ""Faults and
Warnings").
Bit 14: Power direction command (H " Motoring "; L " Generating ")
The command is used to specify the power direction.
With an H signal only the rectifier bridge can carry current, and with an L signal only the regenerating bridge.
Bit 15: Fault, external 1 command (L "Fault, external 1")
The command is executed with an L signal.
After the command has been accepted:
♦ Changeover to the FAULT status (007) (fault F035)
The firing pulses are inhibited and the main contactor, if installed, drops out.(see also Chapter 7 ""Faults and
Warnings")
Bit 16 and 17: reserved
Bit 18: Reserve data set RDS bit 0 (LSB) command
In conjunction with bit 19 "RDS bit 1", this command permits changeover between four possible data sets (see
"Data sets" in Section 4.1.2 and "Selecting the data sets" in Section 4.4).
NOTE
The values in the data sets must be meaningful. This is the case, for example, when current identification (see
Section 4.3.9.7) has been carried out for the currently selected reserve data set or when a valid data set has
been copied using copy parameters (see P055 in Section 5.3). Otherwise errors will be reported.
After the command has been accepted:
♦ The parameter settings of the corresponding data set in the closed/open-loop control are activated.
Bit 19: Reserve data set RDS bit 1 (MSB) command
In conjunction with bit 18 "RDS bit 0", this command permits switches over between four possible data sets (see
bit 18).
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