Parker AC30 - Page 155

Trips & Fault Finding 10-5
AC30 series Variable Speed Inverter
ID
Trip Name
Possible Reason for Trip
Criteria for Warning
28
FEEDBACK
MISSING
The drive has been configured to run in Closed Loop Vector control mode with a Pulse
Encoder IO Option, but the IO Option has not been correctly configured.
The drive has been configured to run in Closed Loop Vector control mode with a
System Board and/or a Pulse Encoder IO Option (using one of the 3 possible
encoder inputs), but the system board or the IO option has not been declared as
required.
Not applicable.
29
INTERNAL FAN
FAIL
An internal cooling fan has failed. This will reduce the lifetime of the power
electronics.
 Return the power stack to a Parker Hannifin repair centre.
Not applicable.
30
CURRENT
SENSOR
Current feedback phase missing
 Check motor phase connections
Not applicable.
31
POWER LOSS
STOP
A Power Loss Ride Through sequence has occurred and either 1650 Pwrl Time Limit
has been exceeded or the motor speed has reached a zero speed during the
sequence.
Not applicable.
32
SPEED SENSOR
FAULT
Not applicable.
Encoder has failed whilst
operating in vector control of
induction motor. The drive
switches to sensorless
operation automatically (if this
feature is enabled), and
provides a warning to the
user.
33
A1
Application trip 1. The application trips are controlled by the Application_Trips block in
the configuration. The text associated with each trip can be re-defined by the
Application_Trips_Text block in the configuration.
Application warning 1.
34
A2
Application trip 2
Application warning 2.
35
A3
Application trip 3
Application warning 3.
36
A4
Application trip 4
Application warning 4.
37
A5
Application trip 5
Application warning 5.
38
A6
Application trip 6
Application warning 6.
39
A7
Application trip 7
Application warning 7.
40
A8
Application trip 8
Application warning 8.