3P Technik DTC200 Руководство по установке и эксплуатации - Страница 13
Просмотреть онлайн или скачать pdf Руководство по установке и эксплуатации для Контроллер 3P Technik DTC200. 3P Technik DTC200 16 страниц.
Печатать страницу
Troubleshooting
Refer to the Safety instructions. No electrical works should be carried out other than by an appropriately
qualified Electrician. Permits to work may be required at local site conditions. If in any doubt, consult your
system supplier.
Problem
No Power – controller
dead – no backlight
on LCD
Backlight on – no
display – no
operation
Controller Frozen –
operates normally
but keypad
unresponsive
Controller Frozen –
does not operate
normally
Tank level sensor
does not function
(error 6)
Tank shows full or
overflow condition
constantly
Low Alarm
DTC200 V1.20
Probable Cause
No power supply from
distribution board
Fuse failed
PCB damaged
CPU chip missing
CPU chip badly inserted or
bent pins
CPU chip wrong way round
CPU chip faulty
PCB damaged
Keypad not connected or
connected wrongly
CPU or oscillator damaged
Not connected
Sensor faulty
Input circuit faulty
Sensors disconnected
Incorrect sensor function or
orientation
Sensor disconnected
Page 13
Solutions
Check 220-240 vac 50hz supply
at power input terminals.
Check Fuse F1
Replace PCB, contact
manufacturer.
Insert CPU
Insert CPU correctly or replace
if necessary
Remove and re-insert correctly
Replace CPU
Replace PCB, contact
manufacturer.
Check connection
Replace CPU, if no success
replace PCB
Check wiring to controller
Test with continuity meter,
replace sensor if necessary
Test with jumper wire, replace
PCB if necessary
Check wiring
Ensure sensors show closed
circuit when dry, open circuit
when immersed.
Check wiring
22/01/20