Alfa Laval ThinkTop v.3.0 User Manual

7 Troubleshooting
7.1 Troubleshooti ng and LEDs
Below is stated the meaning of the LEDs’ indications for fault finding in connection with the operation of the ThinkTop.
Red flashing: Unit in set-up mod
e or internal software fault. If internal software fault, re-programme unit.
Red
Red steady: Unit in set-up mode or internal hardware fault. If internal hardware fault, check if magnet is
in range and che
ck correct wiring.
Yellow B
1.
Orange flashing:
Time for maintenance has run out. The unit has been self-adjusted into a maintenance
alert co
ndition. Valve maintenance is strongly recommended. After maintenance: Disabling
of maintenance/self-adjustment function is required before setting new position, however,
it is strongly recommended to make a complete new set-up after valve maintenance.
2.
Orange steady,
yellow flashing
(A and/or B):
The un
it has been self-adjusted into a maintenance alarm condition and the feedback is
lost (a minimum of seal left). Valve maintenance is required. After maintenance: Disabling
of the self-adjustment function is required before setting new position, however, it is
stron
gly recommended to make a complete new set-up after valve maintenance.
Orange
N
NOTE!
Yell ow A
The maintenance indicator lighting up, and an open or closed light flashing.....
=
Note the following:
- Self-adjustment programme is only valid for SRC/ARC valves, do not use the
programme for other valve types.
- Use tolerance/valve type 1.
- In conjunction with valve type change-over; 21, 22, 31 and 32, the open position
must be defined as the upper sensor position (when the indication pin is in the highest
position).
- A loose top, indication pin or sensor system can also generate the alert/alarm condition.
- Removing a ThinkTop with self-adjust activated, will immediately generate an alarm
condition! If the ThinkTop has to be removed, not because of a valve maintenance
issue, but for some other reasons, and you want to store the already adjusted data
- disable the self-adjust function before removing the ThinkTop and enable it again
once the ThinkTop is back on the actuator.
- After valve maintenance a disabling of the self-adjustment function is required before
setting a new position, however, it is strongly recommended to make a complete new
set-up (disable all functions in step 2 valve type - and make a complete new set-up).
Yell ow A
Yellow steady:
Position A (closed valve).
2
6

Alfa Laval ThinkTop v.3.0 Specifications

General

Brand	Alfa Laval
Model	ThinkTop v.3.0
Category	Controller
Language	English