Appendix B Diagnostics; Types Of Indications; Status Indications; Status Leds - Control Techniques M'Ax 403 User Manual

*
Appendix B Diagnostics
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
Appendix.
WARNING
Under no circumstances must the casing of the Drive
be opened when the AC supply is connected.
If a Drive is faulty, it must be returned to an authorised
Control Techniques distributor for repair.
B.1

Types of indications

Status indications

Version _ AN : When the Drive is in normal operation and the display is in
Status mode, its lower line shows a code which indicates the status of
the Drive.
Both versions, especially version _ SL : Parameters that are used for
indicating status can be read via serial communications.

Alarm indications

Version _ AN : If a critical condition is detected, the Drive continues
operating. When the display is in Status mode, its lower line shows an
alarm code in place of the status code. If the condition is not rectified, the
Drive could trip.
The alarm message flashes alternately with the normal display
indication.
Both versions, especially version _ SL : Parameters that are used for
indicating alarms can be read via serial communications.
Trip codes
Version _ AN : If the Drive trips, the output is disabled so that the Drive
stops controlling the motor. When the display is in Status mode, its
lower line indicates that a trip has occurred and the upper line shows a
trip code.
Both versions, especially version _ SL : Each trip code has a
corresponding numerical value which is entered into parameter 10.20 .
This can be read via serial communications.
B.2 Status indications
Lower line of the display
The number given in brackets under each status indication is the number
of the parameter that is correspondingly set at 1 . After Standard Security
has been unlocked, these parameters can be read via serial
communications.
Hardware enable signal is not applied.
[0.01 set
inh
at 0] The Drive output is disabled.
Hardware enable signal is applied.
[6.15 set
The Drive output is enabled.
rdY
at 1]
The Drive is ready to be run.
Hardware enable signal is applied.
RUN contact is open.
[10.03
StP
The Drive output is enabled.
set at 1]
The motor is stopped (speed reference is zero).
Hardware enable signal is applied.
[10.02
RUN contact is closed.
run
set at 1]
Motor is accelerating or at a steady speed.
[1.13 set Hardware enable signal is applied.
Jo9
JOG FORWARD contact is closed.
at 1]
Servo initialisation at power-up and when the Drive
Ini
is reset.
The motor is being subject to controlled
deceleration to a stop during failure of the AC
CSP [6.49]
supply
84
The Drive and SLM are being supplied from an
[6.44 set
SbY
auxiliary back-up supply.
at 1]
The motor is being decelerated by the Drive
dEC
The Drive has tripped and is no longer controlling
the motor.
The trip code appears on the upper line of the
[10.01
trP
set at 0] display. See Trip codes on page 85.
The Drive output is disabled allowing the motor to
coast.
B.3

Status LEDs

When illuminated, these indicate the following:
Trip OI.AC has occurred; control of the motor
D1 red
has ceased
The Drive has tripped due to a cause other
D2 red
than OI.AC; control of the motor has ceased
The Drive is operating normally (Drive
D3 green healthy); when unlit, this indicates the Drive
has tripped
The Drive is enabled, allowing the motor to
D4 amber
be driven
When the state of any of these LEDs indicates that the Drive has tripped,
perform the following:
Version _ AN : Read the trip code displayed on the upper line of the
alphanumeric display and refer to on page 84.
Both versions, especially version _ SL : Read the value of parameter
10.20 via serial communications and refer to on page 84.
B.4 Alarm indications
Version _AN
Alarm indications appear on the lower line of the display.
Version _SL
The number given in brackets under each alarm indication (in the
following list) is the number of the parameter that is correspondingly set
at 1 . To identify which alarm has ocurred, check the settings of these
parameters via serial communications.
Global alarm indication
When an alarm occurs, parameter 10.19 becomes set at 1 .
2
The [I t] accumulator for the internal braking resistor in
the Drive has reached 75% of the value at which the
Ibr [10.12]
Drive will be tripped.
The Drive output remains enabled.
The motor thermal-overload accumulator in the Drive
indicates that the motor windings are at their maximum
specified working temperature (see Adjusting the
threshold for the motor thermal-overload alarm on page
OuL [10.17]
105).
The Drive output remains enabled.
If the motor current is not reduced, the Drive will trip
(trip code: I2t.AC ).
The Drive heatsink and/or internal control circuits have
hot [10.18]
reached 90°C (176°F).
SLM-online enabled
[11.64 A delay can occur before new parameter values are
OnL
{0.17}] transferred to the SLM
M'Ax User Guide
Issue Number: 4