Mentor MP User Guide
167
Issue: 3 www.controltechniques.com
13 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
13.1 Trip indications
If the drive trips, the output of the drive is disabled so that the drive stops
controlling the motor. The upper display indicates that a trip has
occurred and the lower display shows the trip.
Trips are listed alphabetically in Table 13-1 based on the trip indication
shown on the drive display. Refer to Figure 13-1.
If a display is not used, the drive LED Status indicator will flash if the
drive has tripped. Refer to Figure 13-2.
The trip indication can be read in Pr
10.20
providing a trip number. Trip
numbers are listed in numerical order in Table 13-2 so the trip indication
can be cross referenced and then diagnosed using Table 13-1.
Example
1. Trip code 3 is read from Pr
10.20
via serial communications.
2. Checking Table 13-2 shows Trip 3 is an AOC trip.
3. Look up AOC in Table 13-1.
4. Perform checks detailed under
Diagnosis
.
Figure 13-1 Keypad status modes
Figure 13-2 Location of the status LED
13.2 Trip indications
Table 13-1 Trip 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
Control Techniques distributor for repair.
WARNING
Keypad
display
Comms
code
No.
Trip
3
AOC
Trip type (UV
= undervolts)
Drive status
= tripped
Trip Status
Alarm Status
Healthy Status
Status Mode
Flashing:
Trip status
Non flashing:
Normal status
Trip
Diagnosis
AOC
Instantaneous output over current detected: Peak current greater than 225%
3
Check for short circuit on armature cabling
Check integrity of motor insulation
Check current loop stability
AOP
Voltage has been applied to the armature but no current feedback has been detected
158
Check the armature circuit
C.Acc
SMARTCARD trip: SMARTCARD Read / Write fail
185
Check SMARTCARD is installed / located correctly
Ensure SMARTCARD is not writing data to data location 500 to 999
Replace SMARTCARD
C.boot
SMARTCARD trip: The menu 0 parameter modification cannot be saved to the SMARTCARD because the necessary file has
not been created on the SMARTCARD
177
A write to a menu 0 parameter has been initiated via the keypad with Pr
11.42
(
SE09, 0.30
) set to auto(3) or boot(4), but the
necessary file on the SMARTCARD has not bee created
Ensure that Pr
11.42
(
SE09, 0.30
) is correctly set and reset the drive to create the necessary file on the SMARTCARD
Re-attempt the parameter write to the menu 0 parameter
C.bUSY
SMARTCARD trip: SMARTCARD can not perform the required function as it is being accessed by a Solutions Module
178
Wait for the Solutions Module to finish accessing the SMARTCARD and then re-attempt the required function
C.Chg
SMARTCARD trip: Data location already contains data
179
Erase data in data location
Write data to an alternative data location
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