9
CONTROLLER STATUS LEDs
The Controller Status LEDs LD3 and LD5 have the following meanings:
NCP LEDs
LEDs LD7 and LD8 have the following meanings:
ARCNET LEDs
LEDs LD1 and LD2 have the following meanings:
SERVICING
Components within the controllers cannot be field repaired. If there is
a problem with a controller, carry out the following procedure before
contacting your local sales office.
1.
Make sure controllers are connected and communicating to
desired devices.
2.
Check all sensors and controlled devices are properly connected
and responding correctly.
3.
If controller is operating, make sure the correct application is
loaded by using the VisiSat Configuration Tool. For more
information, see the
VisiSat Engineering Guide
.
4.
Cold start the device and reload its application.
5.
Record precise hardware setup, indicating the following:
•
Controller firmware version number.
•
Information regarding the Version number and build number of
the VisiSat Configuration Tool (see 'About VisiSat' option in the
VisiSat Tool Help menu).
•
A complete description of difficulties encountered.
•
A description of the status of the diagnostic LEDs.
Fuse Replacement
A fuse provides overcurrent protection for the controller. Observing
static precautions, do the following to check and replace fuse.
1.
Turn OFF all power to controller.
2.
Remove controller covers.
3.
Remove fuse using long nose pliers or similar.
4.
Check continuity across fuse.
5.
If fuse is faulty, replace fuse with same type and rating (1A
anti-surge).
6.
Re-install cover.
LD3 (Red, ’Error’ LED) Indicates that the unit has a problem requiring
attention as follows:
•
Long pulse at Flasher object rate (see note)
- Node Error.
•
50% pulse at Flasher object rate (see note)
- Null Outputs.
•
Short pulse at Flasher object rate (see note)
- Unprogrammed.
•
Very fast strobe - Uncalibrated.
Note: The pulse rate is determined by the
Flash rate set up in the System Flasher object
in bubbleland (default 1 flash per second).
LD5 (Green
’Heartbeat’ LED)
ARCNET only
:
•
Pulsing (more on than off) - indicates a
duplicate ARCNET node ID
•
Pulsing (more off than on) - indicates that
ARCNET is initialising and seeking other
nodes.
NCP/ARCNET
:
•
Flashing on and off at Flasher object rate
(see note) - indicates unit is running
correctly.
•
Fast strobing - indicates that the unit is
initialising and reading/writing to EEPROM.
LD7 (Yellow 'Rx' LED)
Indicates successful reception of NCP
data packets.
LD8 (Yellow 'Tx' LED)
Indicates successful transmission of NCP
data packets.
LD1 (Green, 'Online' LED)
•
Constantly on
- indicates that the
ARCNET node is on line and connected
to the network (normal use).
•
Flashing on and off
- indicates
network connection has been lost and
reconnection is being established.
LD2 (Red, 'Error' LED)
•
Off
- indicates initialisation of the
ARCNET device has failed (will occur if
no ARCNET device is fitted (normal)).
•
Long on and off periods
- indicates
network connection failure
•
Short on and off periods
- indicates
recent node network connection or
disconnection (possible network
problem if occurring frequently).
•
Constantly on
- indicates a bus wiring
fault.
•
Flashing
- indicates that the node is not
connected to the network (floating
node)
LD4 (Yellow 'Rx' LED)
Indicates successful reception of
ARCNET data packets.
LD6 (Yellow 'Tx' LED)
Indicates successful transmission of
ARCNET data packets.
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17
18 19 20 21 22 23 24 2
5 26 27 28 29
30 31 32 33
34 35 36 37 38 39
40 41 42 43 44 45 46 4
7 48 49 50 51 52 53 54 5
5 56
57 58 59 60 61 62 63 6
4 65 66 67 68
69 70 71 72 73 74 75 76
77 78
Remove and replace
fuse using long nose
pliers or tweezers
Fuse holder
Fuse
