Commissioning 12.2010
58 ENGLISH Siemens AG 6RX1700-0DD74
SIMOREG DC-MASTER Converter Commutation Protector Operating Instructions
7.1.5 SINAMICS DCM faults
F60300 Commutation fault or an overcurrent condition has occurred - or a test command was issued via p51583
(active in all operating states)
Possible error causes
• Line voltage dip during regenerative operation
• Current control loop not optimized
Fault value: r50047[0..8]:
1: Commutation was unsuccessful because the
commutating thyristor did not assume a blocking voltage
(only when parameter p50166 is activated).
2: The current cusp breaks upwards
3: The amplitude of the current cusp was greater than
290 % of the actual rated unit current acc. to r50072[1].
4: A SINAMICS DCM connected in parallel has detected a
commutation fault or an overcurrent condition.
5: Test command was entered via p51583.
Criterion 1:
r50047[0] = decision-making criterion (=1)
r50047[1] = fired thyristor pairs
r50047[2] = thyristor state (=r53146)
r50047[3] = actual delay angle
r50047[4] = actual EMF as a %
Criterion 2:
r50047[0] = decision-making criterion (=2)
Criterion 2.1:
r50047[1] = sub-criterion (=1)
r50047[2] = delta Ia sampling values when initiating
r50047[3] = last Ia sampling value
r50047[4] = actual Ia sampling value
r50047[5] = actual delay angle
r50047[6] = currently valid counter status
Criterion 2.2:
r50047[1] = sub-criterion (=2)
r50047[2] = delta Ia sampling values when initiating
r50047[3] = delta minimum
r50047[4] = actual Ia sampling value
r50047[5] = first delta Ia
r50047[6] = actual delay angle
r50047[7] = currently valid counter status
Criterion 3:
r50047[0] = decision-making criterion (=3)
r50047[1] = delta counter status when initiating
r50047[2] = last CD voltage
r50047[3] = actual CD voltage
r50047[4] = delta Va
r50047[5] = actual delay angle
r50047[6] = actual firing instant
r50047[7] = actual EMF
r50047[8] = actual Ia sampling value
Triggering a CCP in a parallel connection:
r50047[0] = fault value (=4)
Test command:
r50047[0] = decision-making criterion (=5)
r50047[1] = actual CD voltage
r50047[2] = actual delay angle
r50047[3] = actual firing instant
r50047[4] = actual EMF
r50047[5] = actual Ia sampling value
r50047[6] = torque direction when triggering
To Next Page
Loading...
