Planmeca Compact I Technical Manual page 90

Chapter D - HELP & ERROR MESSAGES
E 9
Check first the mains voltage at the input terminals (P25) on the MCB. If the error only occurs
when running the patient chair then check that the mains impedance is not too high so that
the incoming mains voltage does not drop under the minimum allowed. The following voltage
variations are allowed to guarantee normal operation;
•
•
•
If the incoming mains voltage is at any instance outside the indicated range then an external
voltage stabilizer must be considered. Check that both fuses F9 and F10 on the MCB are OK.
If the error still appears, especially in the lower range of the mains voltage, then the MCB
must be replaced. Advanced: Check the condition of D9, D11, D14, D15, and components
around the voltage measurement filter.
E 10
Check first the mains voltage at the input terminals (P25) on the MCB. Do the same checks
as above. Make sure that the voltage selector jumper is set properly.
E 11.n Secondary fuse blown on MCB
The conditions of the secondary fuses are indicated also by green LEDs at each fuse holder
position. Please look at the inner side of the PCB edge. If a green LED is dark, then the
respective fuse at that position is blown. The following list gives more details about the blown
fuse. Please remember to replace the fuse with the same type and rating indicated, to guar-
antee safety of the equipment;
E 11.1
E 11.2
E 11.3
Always turn off the power during fuse replacement. If a fuse blows immediately again, try to
disconnect the respective load (OP-light, Water heater, Separator or Syringe) to check
whether the load itself is causing the problem.
E 12
E 13
The mains frequency is measured by the MCB and is needed to synchronize both patient
chair AC motors and the OP-light operation. If the mains frequency is OK and the error still
repeats (with possible OP-light flickering) then the MCB must be replaced. Advanced: Check
R167, C82, R159, IC8-5 and IC8-6.
E 14
The voltage from the temperature sensor is outside the normal operating range. Check visu-
ally the board around the heatsink for any damage. Replace the MCB.
E 15
All power semiconductors on the MCB are attached to the same heatsink. For proper cooling,
this heatsink must be attached properly to the left side to the electronics control box. Check
that the two screws are in place and tight. When the heatsink temperature reaches the maxi-
mum allowed (Ý60 °C) this error is generated. The CPU on the MCB first turns off the OP-light
and secondly the output power to the dental instruments, if the temperature still rises a few
degrees. This safety feature makes it impossible to overheat the MCB heatsink.
D-12 Planmeca Compact i
Internal operating voltage too low
230 volt setting (Europe)
115 volt setting (USA)
100 volt setting (Japan)
Internal operating voltage too high
OP-light fuse (F5) and/or Water heater fuse (F7) is blown on the MCB
Separator fuse (F6) and/or the Syringe heater fuse (F8) is blown on the MCB
Either of the +24V electronics fuses (F9 or F10) is blown on the MCB
reserved
Mains frequency outside acceptable range
IPS temperature measurement sensor error
IPS heatsink is running too hot on MCB
DETAILED DESCRIPTION OF ERROR MESSAGES
mains can be from 187VAC to 265VAC
mains can be from 98VAC to 132VAC
mains can be from 80VAC to 110VAC
Technical Manual