ABB Distribution Protection Unit 1500R
6-10
Programmable Input and Output Contacts
9/99
website:www.abb.com/papd
STCA:
Settings Table Changed Alarm. Activates when ever the “Settings” Menu is entered via
front panel MMI or remote WinECP program.
PH3-D:
Phase Control Disabled Alarm. Operates when the phase torque control logical input PH3
(see Programmable Inputs Section) is assigned to a physical input or feedback term and
that physical input or feedback term is not energized.
GRD-D:
Ground Control Disabled Alarm. Operates when the ground torque control logical input
GRD (see Programmable Inputs Section) is assigned to a physical input or feedback term
and that physical input or feedback term is not energized.
27-3P:
Three Phase Undervoltage Alarm. Activates when all three phases of voltage drop below
the 27 undervoltage setting.
27-3P* :
Three Phase Undervoltage Seal-in Alarm. See “Logical Output Types” earlier in this section.
VArDA:
Three Phase kiloVAr Demand Alarm. Operates when the value of the three phase demand
VArs exceed the Three Phase Demand Alarm setting. This alarm is based on the
incremental demand values and not the instantaneous values as in the load alarms. When
the incremental value rises above the VArDA alarm setting, a 60 second timer is started.
When the timer expires, VArDA becomes a logical 1.
TRIPA:
Phase A (L1) Trip Alarm. Operates when the tripping of the DPU1500R main trip contact is
caused by a fault on phase A. TRIPA will drop out when the fault current drops below 90%
of the lowest set time overcurrent element pickup.
TRIPA* :
Phase A (L1) Trip Seal-in Alarm. See “Logical Output Types” earlier in this section.
TRIPB:
Phase B (L2) Trip Alarm. Operates when the tripping of the DPU1500R main trip contact is
caused by a fault on phase B. TRIPB will drop out when the fault current drops below 90%
of the lowest set time overcurrent element pickup.
TRIPB* :
Phase B (L2) Trip Seal-in Alarm. See “Logical Output Types” earlier in this section.
TRIPC:
Phase C (L3) Trip Alarm. Operates when the tripping of the DPU1500R main trip contact is
caused by a fault on phase C. TRIPC will drop out when the fault current drops below
90% of the lowest set time overcurrent element pickup.
TRIPC* :
Phase C (L3) Trip Seal-in Alarm. See “Logical Output Types” earlier in this section.
CLTA:
Cold Load Timer Alarm. Operates when the cold load timer is in operation. CLTA will become
a logical 1 when the Cold Load Timer is counting. When the Cold Load Timer expires, CLTA
will become a logical 0.
Pwatt1:
Positive Watt Alarm 1. Operates 60 seconds after the positive 3 phase kilowatts exceed the
Positive Kilowatt Alarm 1 setting. When the Positive Kilowatt value rises above the the
Positive Kilowatt Alarm 1 setting, a 60 second timer is started. When the timer expires,
Pwatt1 becomes a logical 1. If the value drops below the Alarm setting before the 60 second
timer expires, the timer will reset.
Pwatt2:
Positive Watt Alarm 2. Operates 60 seconds after the positive 3 phase kilowatts exceed the
Positive Kilowatt Alarm 2 setting. When the Positive Kilowatt value rises above the the
Positive Kilowatt Alarm 2 setting, a 60 second timer is started. When the timer expires,
Pwatt2 becomes a logical 1. If the value drops below the Alarm setting before the 60 second
timer expires, the timer will reset.
Note:
Two positive watt alarm logical outputs are provided, Pwatt1 and Pwatt2. One alarm can be
set to a different threshold than the other if desired. An application example: One can be
used for alarming purposes and the other for tripping if desired.
Table 6-2: Logical Output Definitions (cont).
(3I>D)
(IN>D)
(3U<)
(3U<*)
(TRIPL1)
(TRIPL1*)
(TRIPL2)
(TRIPL2)
(TRIPL3)
(TRIPL3*)
