Chapter 6
– Troubleshooting
40
XtrapulsCD1-pm - User manual
Chapter 6
– Troubleshooting
1 - DIAGNOSTICS
A fault diagnostic can be made:
-
visually: front panel LED display.
-
by serial link: clear fault display by the PC parameterization software.
-
by Profibus link: error code reading.
At an error triggering, the positioner is disabled.
1.1 - XtrapulsCD1-pm FAULT LEDs
Six display LEDs are available on the XtrapulsCD1-pm front panel:
1.2
– FAULT RESET
The reset of a stored fault can be made:
- via the fault RESET input of X4, pin 8,
- via the serial link,
- by the control issued from Profibus,
- by switching off the positioner power supply.
2
– FAULT FINDING
2.1
– SYSTEM FAULT
If the "SYS" LED is lit at power on, the logic board is defective.
•
Check that the
BUS, BUSY, AP
and
ERROR
leds are synchronously blinking. In this case, load the amplifier
firmware via the serial link by means of the
CD1updater software
.
•
Check for no conducting dust that may involve short-circuits on the amplifier logic board.
2.2
– NON STORED FAULTS
2.2.1
– BUS FAULT (Profibus)
This fault is only displayed when the Profibus communication is interrupted.
The fault is cancelled as soon as the communication is restored.
2.2.2 - "UNDERVOLT." FAULT
-
If the fault occurs at the positioner commissioning:
* Check that the power supply is on.
2.3
– STORED FAULTS
If a fault occurs on the positioner, it can generate the detection of several other faults which are only a
consequence of the initial one. In order to make diagnostic and maintenance easier, the faults are displayed and
processed with the priority described below. For safety reasons, the power must be turned off for the cancelling of
some faults that requires the handling of the positioner. In this case, the RESET is automatic when power is
turned on again. If power is not turned off, do not forget to make a RESET immediately after the fault is cancelled.
(green) ON
SYS (yellow)
(red) ERROR
(green) BUS
AP (red)
BUSY (yellow)
