Start-Up
09.02
4-26
Siemens AG 6SE7087-6AK85-1AA0
Rectifier/Regenerating Unit Operating Instructions
4.3.1.2.4 Significance
of
the status word messages
NOTE
When
faults, alarms and switch-on inhibit
of the status word are output (
HIGH active
) via the terminal strip,
then these are
LOW active
at the terminal strips
(binary outputs) (i.e.:
relay drops out
)!
This is also valid for possible option boards!
Also refer to Section 4.3.3 "Binary outputs"
Bit 0: Signal, "Ready to switch-on" (H)
An H signal indicates that the operating status SWITCH-ON INHIBIT (008) or READY-TO-SWITCH-ON (009) is
available. The firing pulses are inhibited.
Bit 1: Signal, "Ready" (H)
H An H signal, indicates that the operating status READY (011) or PRE-CHARGING (010) is available. The
firing pulses are still inhibited.
Bit 2: Signal, "Run" (H)
An H signal indicates that the operating status RUN (014) is available. The firing pulses are enabled and the
output terminals are live.
Bit 3: Signal, "Fault" (H)
An H signal indicates that the operating status FAULT (007) is available. If the fault is output at a terminal strip
(CUR, SCI1/2) an L signal appears there for this fault message.
Bit 4: Signal, "OFF2" (L)
An L signal indicates that an OFF2 command is present via the control word (bit 1).
Bit 5: reserved
Bit 6: Signal, "Switch-on inhibit" (H)
An H signal indicates that the operating status SWITCH-ON INHIBIT (008) is present. The message remains as
long an OFF2 command is applied over the control word (bit 1) and/or an ON command is still applied the
control word (bit 0) (edge evaluation).
If the message is output at a terminal strip (CUR, SCB1) an L signal appears there for this message.
Bit 7: Signal, "Alarm" (H)
An H signal indicates that an alarm (Axxx) is present. If the alarm is output at the terminal strip (CUR, SCB1), an
L signal appears there for this alarm.
Bit 8: Signal, "Setpoint/actual-value deviation" (L)
The L signal indicates that the absolute value of the difference between the Ud setpoint and the Ud actual value
is greater than or equal to a programmable deviation (P517 "Setpoint/actual-value deviation Ud" for longer than
the "Setpoint/actual-value deviation time" (P518). The bit is again set high as soon as the absolute value of the
difference between the Ud setpoint and the Ud actual value is less than the deviation (P517).
Bit 9: Signal, "PZD control requested" (H)
An H signal is always present.
Bit 10: Message, "Regenerating ready" (H)
An H signal indicates that the rectifier/regenerating unit us ready to feed power back into the system (see
control word/bit 11 in Section 4.3.1.1.7).
Bit 11: Message, "Fault" (reserved, L)
An L signal is always present. If the fault signal is output to a terminal block (CUR, SCI 1/2), an L signal appears
there for this fault.
Bit 12: Signal, "Main contactor energized" (H)
This message is identical to the status of the relay contact at terminals 9-4/5 with which a main contactor can be
driven.
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