A007: Mains Phase Failure; A008: Speed Feedback Failure; A009: Field Overcurrent; A010: Armature Overvoltage - Santerno DCREG2 Series User Manual

15P0059B3
USER MANUAL
8.1.6 A007: M
AINS
A007 Mains
Failure
8.1.7 A008: S
PEED
A008 Speed Fdbk
Failure
8.1.8 A009: F
IELD
A009 Field
OverCurrent
8.1.9 A010: A
RMATURE
A010 Armature
OverVoltage
8.1.10 A011: A
A011 L out of
Range
8.1.11 A012: M
A012 Frequency
out of Range
186/200
P F
HASE AILURE
I A007 - Mains Failure
Failure of one of the three mains phases, or more than one. This alarm may
S
occur only when the ENABLE digital input is active. Set disabling through
parameter C154 and continuous autoreset through parameter C093.
F F
EEDBACK AILURE
A008 - Speed Fdbk Failure
I
The alarm trips:
S
a. When the tacho (or enP/Nr) connection is reversed.
b. When the tacho (or enP/Nr) connection is cut off.
c. In case of the tacho (or enP/Nr) failure.
This alarm may be disabled through parameter C155.
O
VERCURRENT
A009 - Field OverCurrent
I
The value of field current M018 (Ifld) has exceeded the product of C010 • C017
S
(value of the rated field current increased by the value percent set with the
boost) for more than 15%. For the alarm trip, the ENABLE digital input must be
active. The alarm trip is subject to a 10s internal delay. When this alarm trips,
the field current is cut out.
O
VERVOLTAGE
I A010 - Armature OverVoltage
The value of armature voltage M006 (Varm) has exceeded the max. allowable
S
limit, which is linked with the rated value of the power section supply voltage;
such limit is determined by the following product: C030•1.316. For instance, for
a supply voltage nominal value equal to 400 Vac, the alarm threshold will remain
equal to 526 Vdc. This alarm may be disabled through parameter C156.
T I
UTO UNING NDUCTANCE OUT OF
I A011 - L out of Range
The inductance corresponding to equivalent inductive drop P104 (LdI/dt Pred)
S
resulting from the current auto tuning is not included in the allowable range.
F
AINS REQUENCY OUT OF
I A012 - Frequency out of Range
S Frequency M008 (MFreq) of the mains is over 70 Hz or is under 40 Hz.
This alarm occurs only when the ENABLE digital input is activated.
Set continuous autoreset through parameter C093.
R
ANGE
R
ANGE
DCREG2
DCREG4