Basler BE1-CDS220, Instruction Manual

Page: 226 / 476

8-48 Application BE1-CDS220
Table 8-30. MOTOR Output Logic
State Labels
Output Purpose Description Label
True False
VOA Relay Trouble alarm.
OUTA contact closes when relay
trouble alarm occurs.
RELAY-TROU ALARM NORMAL
BESTlogic Expression: VOA=0
VO1 Breaker trip.
TRUE when protective trip
expression is TRUE.
MOTOR_ TRIP TRIP NORMAL
BESTlogic Expression: VO1=VO11
VO4
Overload alarm output
contact. Overload protection (51P) is picked
up and timing to trip.
OVERLOAD-O ALARM NORMAL
BESTlogic Expression: VO4=VO14
VO5
Unbalance alarm output
contact. Unbalance protection (51Q) is
picked up and timing to trip.
UNBALANCE- TRIP NORMAL
BESTlogic Expression: VO5=VO15
VO7
Intermediate logic variable
that determines if a high
inertia motor application is
starting. (Not yet up to
speed).
SW 143 selects whether starting is
determined by monitoring speed
switch or current. TRUE if motor
energized 250TPPU and speed
switch (IN2) closed. Or, 50TP is
picked up. Used to unblock 151P
for Locked Rotor protection.
STARTING-H TRUE FALSE
BESTlogic Expression: VO9= IN2*250TPPU*143+50TPPU*/143
VO8
Intermediate logic variable
that determines if the motor
is starting. (Time set for
about 120% of maximum
start time).
TRUE if 250TP is picked up but not
yet timed out. Used to unblock jam
(251P) protection.
STARTING TRUE FALSE
BESTlogic Expression: VO10=250TPPU*/250TPT
VO9
Emergency Trip
intermediate logic
expression for external trip
alarm seal-in.
TRUE if IN3 is energized causing a
trip or if emergency trip alarm point
is TRUE.
EMER-TRIP- TRUE FALSE
BESTlogic Expression: VO9=IN3+VO13
VO11 Protective trip expression.
Restrained diff trip, 50TN ground
fault, 50TQ loss of phase, 150TP
low inertia locked rotor, 51P
overload, 51Q unbalance, 151P
high inertia locked rotor, 251P Jam,
or VO13 Emergency Trip.
PROTECTIVE TRIP NORMAL
BESTlogic Expression: VO11=87RT+50TNT+50TQT+51PT+51QT+151PT+251PT+VO13