Diagnostics; Displaying The Trip History - Control Techniques SM-Encoder Plus User Manual

7

Diagnostics

If the drive trips, the output is disabled so that the drive stops controlling the motor. The
lower display indicates that a trip has occurred and the upper display shows the trip.
Trips are listed alphabetically in Table 7.1 based on the trip indication shown on the
drive display. Refer to Figure 7-1.
If a display is not used, the drive LED Status indicator will flash if the drive has tripped.
Refer to Figure 7-2.
The trip indication can be read in Pr 10.20 providing a trip number.
7.1

Displaying the trip history

The drive retains a log of the last 10 trips that have occurred in Pr 10.20 to Pr 10.29 and
the corresponding multi-module drive module number (Pr 6.49 = 0) or the trip time
(Pr 6.49 = 1) for each trip in Pr 10.41 to Pr 10.51. The time of the trip is recorded from
the powered-up clock (if Pr 6.28 = 0) or from the run time clock (if Pr 6.28 = 1).
Pr 10.20 is the most recent trip, or the current trip if the drive is in a trip condition (with
the module number or trip time stored in Pr 10.41 and stored in Pr 10.51). Each time a
new trip occurs, all the parameters move down one, such that the current trip (and time)
is stored in Pr 10.20 (and Pr 10.41 to Pr 10.42) and the oldest trip (and time) is lost out
of the bottom of the log.
If any parameter between Pr 10.20 and Pr 10.29 inclusive is read by serial
communications, then the trip number in Table 7.1 Trip codes on page 36 is the value
transmitted.
Figure 7-1 Keypad status modes
Healthy Status
Figure 7-2 Location of the status LED
Non flashing: Normal status
Flashing: Trip status
SM-Encoder Plus & SM-Encoder Output Plus User Guide
Issue: 4
Status Mode
Alarm Status
Unidrive SP
(sizes 1 to 6)
LED
www.controltechniques.com
Trip Status
Unidrive SP (size 0)
Digitax ST
Drive status
= tripped
Trip type (UU
= undervolts)
LED
35