Safety
Information
Product
Information
Mechanical
Installation
Electrical
Installation
Getting
Started
Basic
parameters
Running
the motor
Optimization
SMARTCARD
operation
PC tools
Advanced
parameters
Technical
Data
Diagnostics
UL Listing
Information
250
Affinity User Guide
www.controltechniques.com Issue Number: 5
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 display indicates that a trip has occurred and
shows the trip. If this is a multi-module drive and a power module has
indicated a trip, then the display will alternate between the trip string and
the module number.
Trips are listed alphabetically in Table 13-2 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 13-3 so the trip indication
can be cross referenced and then diagnosed using Table 13-2.
Example
1. Trip code 3 is read from Pr
10.20
via serial communications.
2. Checking Table 13-3 shows Trip 3 is an OI.AC trip.
3. Look up OI.AC in Table 13-2.
4. Perform checks detailed under
Diagnosis
.
Table 13-1 Example of typical trip indication
Figure 13-1 Keypad status modes
Figure 13-2 Location of the status LED
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
OI.AC
r i p
C
O v e r
C
r r e n t
t
A
u
T
i p
r
I.
O
Trip Status
Alarm Status
Healthy Status
Status Mode
r d y
0
rpm
E s t i m a t e d
m o t o r
R P M
u t o
rpm
E s t i m a t e d
m o t o r
R P M
Ov e r L d
r i p
U
U n d e r
V
l t a g e
t
U
o
T
i p
r
A
Status LED
Non flashing:
Normal status
Flashing:
Trip status
Trip
Diagnosis
OI.AC
Instantaneous output over current detected: peak output current greater than 225%
3
Acceleration / deceleration rate is too short.
If seen during autotune reduce voltage boost Pr
5.15
Check for short circuit on output cabling
Check integrity of motor insulation
Is motor cable length within limits for that frame size?
Reduce the values in speed loop gain parameters – Pr
3.10
, Pr
3.11
and Pr
3.12
(RFC mode)
Reduce the values in current loop gain parameters - Pr
4.13
and Pr
4.14
(RFC mode)
Summary of Contents for Affinity
Page 274: ...0474 0000 05 ...