Beckman Couler ALLEGRA X-12/R, Service Manual, Page: 50 / 83

Section 3: Service Procedures
Momentary power outage will not terminate the run. A Power diagnostic will be given for a power
failure at power glitch or outage. When a Power diagnostic occurs, all program parameters will be
saved and the Power diagnostic will be displayed on the VFD.
Diag.
# Description Action taken When issued Display
P1 Hardware power failure
indication Shutdown with brake On power up/ reset after
any power glitch or outage P-1 Power failure
occurred, see manual
Door Diagnostics
Diag
# Description Action taken When issued Display
L1 Both door strikers not in place Shutdown, no brake When running or stopping
only L-1 Door Latch,
call Service
L2 Left striker is not in place Shutdown, no brake When running, stopping or
pressing ENTER START L-2 Door Latch,
call service
L3 Right striker is not in place Shutdown, no brake When running, stopping or
pressing ENTER START L-3 Door Latch,
call Service
L4 Both door latches are open Shutdown, no brake When running, stopping or
pressing ENTER START L-4 Door Latch,
call Service
L5 Left door latch open Shutdown, no brake When running, stopping or
pressing ENTER START L-5 Door Latch,
call Service
L6 Right door latch open Shutdown, no brake When running, stopping or
pressing ENTER START L-6 Door Latch,
call Service
L7 Cannot open the door No action When running, stopping or
pressing ENTER START L-7 Can’t Open Door,
see manual
Imbalance Diagnostics
The Allegra X-12/R, X-15R centrifuge has a rotor imbalance detector as used in the Allegra 25/64R.
In a situation where an imbalanced rotor is being used an Imbalance diagnostic will be generated and
the instrument will brake the run to a stop. The system reports imbalance diagnostic if the sensor
reading is positive and the door is closed.
Temp Diagnostics
Diag.
# Description Action taken When issued Display
I1 Imbalanced rotor. Shutdown with brake I-1 Imbalance, see manual
I2 Bad imbalance detector Shutdown with brake Issued when imbalance
A/D does not change
(Connector not attached) I-2 Imbalance Error,
call Service
I3 Imbalance not calibrated Shutdown with brake Issued when Imbalance
calibration value for rotor
is set to 0. This is the default
value when not calibrated. I-3 Imbalance Error,
Call Service
I4 Imbalance sensor not calibrated Run will not start Issued when enter/start
pressed I4 -Imbalance Error,
call Service
I5 Imbalance flag failure Run will not start Issued when enter/start
pressed I5 -Imbalance Error, call
Service
I6 Imbalance flag calibration error Run will not start Issued when enter/start
pressed I6 -Imbalance Error, call
Service
Allegra X-12/R, X-15R Service Manual 07/07 3-17