3 SETUP AND USE
3-16
used to examine all of the actual motor data outlined
above.
3.3a Starts/Hour Timer
An individual starts/hour timer is activated each time a
motor start condition is detected and starts to time out
beginning from 60 minutes. All starts/hour timers can
be viewed in Actual Values pg. 1 line 7. If the number of
starts/hour programmed in Setpoints pg.1 line 7 is ex-
ceeded within one hour, a start/hour inhibit is initiated
with a lockout time equal to the smallest start/hour
timer. A maximum of five starts/hour may be pro-
grammed, or the setpoint turned OFF.
In the case of an emergency, when the lockout time has
to be bypassed and an additional start is required, the
Emergency Restart button can be pushed (terminals
#54 and 55 temporarily shorted) making the smallest
start/hour timer zero, resetting the inhibit and effectively
allowing an additional start. Note that the other timers
continue to time out unaffected.
Every time the Emergency Restart button is pushed,
another timer is emptied and an additional start/hour is
allowed. For example, pushing the Emergency Restart
button again will empty the second timer and two more
starts/hour are allowed before another start/hour inhibit
is initiated.
3.3b Time Between Starts Timer
This timer corresponds to the “Time Between Starts
Time Delay” feature in Setpoints pg. 5 line 24. The time
displayed is the actual lockout time that the user has to
wait before an additional start can be performed.
This timer is updated continuously until it expires, then
a zero is displayed. When the timer expires, this indi-
cates to the user that a start is allowed immediately
after a motor stop without any lockout time.
The time between starts timer is equal to zero in the
following two cases:
1. If the timer has expired and therefore there’s no
lockout time prior to starting again after a motor
stop condition is detected.
2. If the “Time Between Starts Time Delay” feature
is set to “OFF” in Setpoints pg.5 line 24.
3.3c Cause of Last Trip
The message in Actual Values pg.5 line 3 describes the
cause of the last trip. It will be updated when a trip oc-
curs. “XXXXXXXXXXX” in the message represents one
of the following trips:
Overload Trip Speed Switch Trip
Short Circuit Trip Differential Trip
Rapid Trip Single Phase Trip
Stator RTD Trip Spare Input Trip
RTD Trip Power Factor Trip
Ground Fault Trip Undervoltage Trip
Acceleration Trip Overvoltage Trip
Phase Reversal Trip Undercurrent Trip
3.3d Cause of Last Event
An event is defined as a TRIP or an INHIBIT. If the last
event was a trip, then the message “CAUSE OF LAST
EVENT” and the following message “CAUSE OF LAST
TRIP” are the same, mainly displaying the cause of the
trip. However, it is possible to have a trip which is im-
mediately followed by an inhibit such as starts/hour,
time between starts, start inhibit or backspin timer. In
this case “INHIBIT LOCKOUT” is displayed as the
“CAUSE OF LAST EVENT” message and the cause of
the trip is displayed as the “CAUSE OF LAST TRIP”
message. Sometimes only an inhibit activates the
TRIP, AUX1 or TRIP and AUX1 relays. This may hap-
pen when the motor is intentionally stopped, but more
often, it happens accidentally on an unloaded motor
when current drops below 5% of CT. 5% of CT is the
cutoff point for the 269, where a motor stop condition is
registered. In this case, the cause of the last trip is not
updated. Only the cause of last event message is up-
dated to show “INHIBIT LOCKOUT”. This message
should greatly assist in the diagnosis of the problem,
because the activation of the TRIP relay will not be
misunderstood and treated as an actual trip. Instead,
the solution may be fairly simple to implement, and it
may only require that a 52b contact for a breaker, or
equivalent for a contactor, be wired to terminals 44 and
45 on the 269, and the setpoint “SPARE INPUT TO
READ 52b?” on page 5 of setpoints be changed to
3.4 SETPOINTS Mode
In SETPOINTS mode any or all of the motor trip/alarm
setpoints may be either viewed or altered. This mode is
divided into seven separate pages of data each of
which contains a different group of relay setpoints.
To enter SETPOINTS mode the SETPOINTS key must
be pressed. When in this mode, if no key is pressed
for more than four minutes, the display will automati-
cally go into ACTUAL VALUES mode as explained in
section 3.3. To return to SETPOINTS mode the SET
POINTS key must be pressed. When this key is
pressed the following flash message will appear on the
display,
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