Simrad AP35, Instruction Manual

Page: 97 / 104

Trouble Shooting
22083083E
95
Display readout Probable fault Recommended action
Bypass/clutch
overload Clutch/bypass current
exceeds 2,5 Amps
(overload or short circuit). 1. Check actual current
2. Check voltage marking on coil
3. Check coil resistance (through
connecting wires)
Bypass/clutch
disengaged Poor connection or open
circuit in bypass/clutch coil 1. Check connections
2. Replace bypass/clutch if open.
3. Perform new "Rudder test".
J3XX high temp. Excessive temperature in
Junction Unit (>75°C),
possible long term
overload. 1. Switch off autopilot
2. Check for backload in Drive unit/
steering system.
3. Check that Junction unit
specifications matches Drive unit.
Data failure J3XX Wrong checksum on
memory parameters or
variables. Junction unit will
use default values. Perform a "Master reset" and make a
new "Dockside set-up". Switch off and
on again. If the alarm is repeated,
replace Junction unit Main PCB.
Com. failure with
J3XX Junction Unit faulty or
possible poor connections
in Robnet cable from same. 1. Check Robnet connectors and
cable.
2. Replace Junction unit Main PCB.
Low supply voltage Mains voltage less than 9
Volts 1. Verify by System Data Menu
2. Switch autopilot off, charge
batteries
3. Check/repair battery charger
High supply voltage J300X, J300X-40 Mains
exceeds 44 V
J3000X Mains exceeds 29V 1. Verify by System Data Menu
2. Switch autopilot off
3. Check / repair battery charger
Alarms in AUTO, NAV or WORK:
The boat is off course Extreme weather
conditions, too slow speed.
Boats heading is outside
fixed off course limit of 20
deg. (Automatic reset when
inside limit.) 1. Check steering parameters
(Rudder, Autotrim, Seastate-
filter).
2. Increase Rudder value
3. Increase boat speed, if possible, or
steer by hand.
See also page 23
Alarms in NAV
NAV. data failure Missing or invalid NAV
data. 1. Use NMEA Test Menu
2. Check Nav. receiver setup.