Siemens Sinumerik 840D sl Diagnostic Manual page 724

Overview of Alarms
SINAMICS-Alarms
206100 <location>Infeed: Shutdown due to line supply undervoltage condition
Message %1
value:
Drive object: A_INF, B_INF, S_INF
Reaction: OFF2 (OFF1)
Acknowledge: IMMEDIATELY (POWER ON)
Cause: The filtered (steady-state) value of the line supply voltage is less than the fault threshold (p0283).
Fault condition: Vrms < p0283 * p0210
Fault value (r0949, floating point):
Current steady-state line supply voltage.
See also: p0283 (Line supply undervoltage, shutdown (trip) threshold)
Remedy: - check the line supply.
- check the line supply voltage (p0210).
- check the fault threshold (p0283).
206105 <location>Infeed: Line supply undervoltage
Message %1
value:
Drive object: A_INF, B_INF, S_INF
Reaction: NONE
Acknowledge: NONE
Cause: The filtered (steady-state) value of line supply voltage is lower than the alarm threshold (p0282).
Alarm condition: Vrms < p0282 * p0210
Alarm value (r2124, floating point):
Current steady-state line supply voltage.
See also: p0282 (Line supply undervoltage, alarm threshold)
Remedy: - check the line supply.
- check the line supply voltage (p0210).
- check the alarm threshold (p0282).
206200 <location>Infeed: Failure of one or several line phases
Message -
value:
Drive object: A_INF, S_INF
Reaction: OFF2 (OFF1)
Acknowledge: IMMEDIATELY (POWER ON)
Cause: Failure overvoltage in one or several line supply phases.
The fault can be output in two operating states:
1. During the power-on phase of the infeed unit.
The measured line supply angle deviates from the regular characteristic for a 3-phase system - the
PLL cannot be synchronized.
The fault occurs immediately after power-up if, when operating with a VSM, the phase assignment L1,
L2, L3 at the VSM differs from the phase assignment at the power unit.
2. While the infeed is operational.
After a voltage dip has been detected or an overvoltage (note A06205) in one or several line phases
a fault occurred within 100 ms (also refer to other relevant messages). Generally, before fault mes-
sage F06200 is output, Alarm A06205 occurs at least once, whose warning value can provide infor-
mation regarding the cause of the line supply fault.
Probable causes of the fault:
- voltage dip on the line side or phase failure or overvoltage lasting longer than 10 ms.
- overload condition on the load side with peak current.
- commutating reactor missing.
Remedy: - check the line supply and fuses.
- check the connection and size (rating) of the line commutating reactor.
- check and correct the phase assignment at the VSM (X521 or X522) and at the power unit.
- check the load.
- if failed in operation, carefully note the previous alarm messages A6205 with alarm values.
See also: p3463 (Infeed, line angle change, phase failure detection)
2-724
SINUMERIK 840D sl, 840Di sl, SINAMICS, Diagnostics Manual (DAsl), 03/2009
© Siemens AG 2009 All Rights Reserved
03/2009