Start-Up
Bit 12: Regenerating enable command (H "Regenerating enable")
This command is of no significance in the case of a power supply unit.
Bit 12: Regenerating inhibit command (L "Regenerating inhibit")
This command is of no significance in the case of a power supply unit.
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 ")
This command is used to specify the feed direction.
If the signal is High, the infeed bridge may carry current, if Low it may not.
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).
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).
Bits 20 to 22: reserved
Bit 23: 12-pulse mode selection command (H "12-pulse mode is selected")
The command is executed with an H signal and causes a change in operational behavior from that of a single
unit (i.e. a "normal" single unit becomes a 12-pulse master or a 12-pulse slave depending on parameter P587
or control word bit 27). See Section 3.8.4 for further details.
4-20
ENGLISH
NOTE
Siemens AG
6SE7087-6AK85-0AA0
Common Rectifier
Operating Instructions
09.02