Page | 14
Commercial in confidence. User Manual Revision CTK-SM-REV8-060720
5. TROUBLE SHOOTING
- (continued)
5.2 Fault Indications
-
Could be Flashing LEDs or Audible Warnings.
The bed’s control software can detect and indicate faults with the electrical system by
means of audible beeps and flashing LEDs.
Audible Warnings.
POSITION LOST on an actuator is indicated via an intermittent beep 200msec ON /
200msec off.
Try the RESET/CALIBRATION procedure and in turn run all functions. If problem persists,
locate faulty actuator or cable.
FATAL ERROR is indicated via an intermittent beep 50msec ON / 500msec OFF.
Try the RESET/CALIBRATION procedure and then in turn run all functions. If problem
persists, locate faulty actuator/cable and replace as required.
HOOT is indicated by a constant beep.
Try the RESET/CALIBRATION procedure and then in turn run all functions. If problem
persists, locate faulty actuator/cable and replace as required.
BATTERY LOW is indicated by a 50msec beep when a function is activated.
Charge or replace the battery.
OVERHEATING is indicated by a single 5 second beep when a function is activated.
Allow the system to cool down before operating.
Flashing LED Warning.
Flashing LEDs on nurse control panel (side rail outer side) and Attendant Control Panel
(ACP) or Attendant Control OpenBus Mini Panel (ACOM) indicate a fatal error.
Trouble shoot problem and replace faulty component.
Reset by pressing HiLo Up and Down buttons simultaneously until beeping sound stops.
5.3 Calibration
Although highly unusual, it is possible that long use in service may result in lost position
(non-parallelism) of the height actuators, as a result of which the bed may not return to a
true horizontal position. This may be automatically corrected by driving the bed to its
maximum height. If this is not effective, the condition can be rectified by the recalibration
procedure described below.
In the case of a main lift actuator or cable requiring replacement it is imperative that the
system is re-calibrated as described below.
Procedure
a) Ensure that the bed is connected to the mains power supply.
b) Adjust the bed to approximately mid height position.
c) Simultaneously press HILO UP and DOWN keys on the handset until the system
stops beeping. Please note that the two keys must be activated at exactly the same
time.
d) Calibrate the Lifting / HILO actuators by running HILO UP until both actuators are
fully extended (bed is at its highest point).
e) Hold the button for approximately 1 second after the actuators have stopped.
f)
Note: Backrest and Knee break actuators do not require calibrating.
