Diagnostics; Trip Indications; Keypad Status Modes; Location Of The Status Led - Emerson SP1201 Installation Manual

Safety Product
Introduction
Information information
12

Diagnostics

The display on the drive gives various information about the status of the
drive. These fall into three categories:
•

Trip indications

• Alarm indications
• Status indications
Users must not attempt to repair a drive if it is faulty, nor
carry out fault diagnosis other than through the use of the
diagnostic features described in this chapter.
If a drive is faulty, it must be returned to an authorized
WARNING Control Techniques distributor for repair.
12.1 Trip indications
If the drive trips, the output of the drive 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 12-2 based on the trip indication
shown on the drive display. Refer to Figure 12-1.
If a display is not used, the drive LED Status indicator will flash if the
drive has tripped. Refer to Figure 12-2.
The trip indication can be read in Pr 10.20 providing a trip number. Trip
numbers are listed in numerical order in Table 12-3 so the trip indication
can be cross referenced and then diagnosed using Table 12-2.
N
NOTE
Trips beginning with a number are given at the end of Table 12-2 where
the number is replaced with an X (1 ≤ X ≤ 8). The number indicates the
tripped module in a multi-module drive.
Example
1. Trip code 3 is read from Pr 10.20 via serial communications.
2. Checking Table 12-3 shows Trip 3 is an OI.AC trip.
Comms
No.
code
3
3. Look up OI.AC in Table 12-2.
4. Perform checks detailed under Diagnosis.
NOTE
Below is the trip code which is specific to Unidrive SP in regen mode. These are in addition to the trips listed in Table 12-2 on page 207.
Table 12-1 Regen drive specific trip code
Trip
Ll.SYNC
39
N
NOTE
For the above synchronisation failures also refer to: Pr 3.04 Regen restart mode.
206
System Mechanical
design installation
Keypad
Trip
display
OI.AC
Regen drive failed to synchronise to supply
Pr 3.03 displays the reason for the synchronisation failure:
0: Tripped during synchronisation
1: Tripped while running
2: Line frequency too low (<30.0Hz)
3: Line frequency too high (>100.0Hz)
4: Error during synchronisation of PLL to supply
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Figure 12-1 Keypad status modes
Healthy Status
Figure 12-2 Location of the status LED
Non flashing:
Normal status
Diagnosis
Technical Component
Parameters
data sizing
Status Mode
Alarm Status Trip Status
Status LED
Flashing:
Trip status
Unidrive SP Regen Installation Guide
Diagnostics
Drive status
= tripped
Trip type
(OI.AC =
Instantaneous
output over
current)
Issue Number: 2