Skyjack SJ12 E Service Manual page 141

Display Module
Code Description
COIL SHOR.
241-COIL ERR
EVAUX
242-COIL ERR OPEN COIL EV.
244-CHK SLAVE WARNING SLAVE
245-CTRL ERR IQ MISMATCHED
246-CTRL ERR EB. DRIV.OPEN
248-CAN ERR NO CAN MSG. XX
CHECK UP
249-CTRL ERR
NEEDED
SJ12 E, SJ16 E, SJ20 E
Cause
An overload on the digital auxiliary
outputs occurred. If the alarm is from
the master microcontroller, outputs
EV1 through EV4 are involved; if it is
from the slave microcontroller, outputs
EV5 through EV9 are. As soon as the
overload condition disappears, the alarm
is cleared by releasing all the active valve
requests and then enabling again one
valve request.
This fault appears when no load is
connected between one or more EV
outputs and the positive terminal PIN
A13.
Warning on supervisor microcontroller.
The error between the estimated Iq
(q-axis current) and the related set point
is out of range.
The EB driver is not able to drive the
load. The device itself or its driving circuit
is damaged.
CAN bus communication does not work
properly. The hexadecimal value "XX"
identifies the faulty node.
03 Missing or an error with the
▪
communication of the Master
Processor, this alarm can appear
on the Slave
04 Missing or an error with the
▪
communication of the Slave
Processor, this alarm can appear
on the Master
20 The joystick exits unexpectedly
▪
from an operational mode
21 The joystick has an internal
▪
fault,
22 The controller does not receive
▪
the Heartbeat Message from the
Joystick within the allowed Time
23 The controller does not receive
▪
the PD01 message from the
Joystick in the allowed time
24 The controller does not receive
▪
the PD02 Messages from the
Joystick in the allowed time
This is a warning to point out that it is
time for the programmed mastertenance.
Section 5 – Procedures
Troubleshooting
Check the wiring harness and coils
for short circuit.
Check the valves and the wiring.
If no problem can be found, replace
the controller.
Connect the Console to the
supervisor microcontroller and check
which alarm is present.
Ask for assistance to a Zapi
technician in order to do the correct
adjustment of the motor parameters.
This fault is not related to external
components, replace the controller.
Verify the resistance of the CAN BUS
Network, with the machine OFF,
measure the resistance between
CAN and CAN L, you should have
60 Ohms.
Verify the continuity between the
controller and the device which is
causing the alarm
Replace the device causing the
alarm.
Turn on the CHECK UP DONE option
after that the mastertenance service.
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