Jungheinrich ETV213 User Manual

õUNGHEINRICH Event Messages

F

Function group

Event Messages

03.151

G

This display units shows a four-digit event message for every

Z

event. Trucks that only use one luminous display (e.g. LED) show
the event through a flashing code (see "Display System”).
Each event message is also stored in the master logbook. The
master logbook describes the event in more detail through the sub
index behind the event message (FEXX).

Event numbering display

F E XX S
F Function group; E Event group

XX Event number S Sub index

The first two characters “F, E” refer to the category. The middle

Z

two digits “XX” refer to the event. From these two digits the range:

•1 to 50 describes standard events (uniform basic events)
which can occur in any function group.

•51 to 99 describes specific events.

The event is described in further detail through the last characters
“S” (single digit/multi-digit).
This process ensures that a unique number is assigned to each
event. Example:

E

XX

S Sub-index

Event group

Event number

Sub-division of function group "F"

System:
Overlapping functions that cannot be assigned to any other

0

function group)

Example: seat switch / deadman switch or master controller
1Travel
2Hydraulics (load handling)
3Steering and travel
4Displays/controls, interface
5Charger (either on-board or external charger)
6Reserved
7Reserved
8Reserved

Special functions

9

Example: ISM

ï í ðë ï

õUNGHEINRICH Event Messages

Sub-division of event group “E”

Display system

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Fault reset or

0

no fault
General fault / additional functions

1

Example:
Logic error, e.g. both directions selected simultaneously

Current

2

(input interface, device-internal, output interface)
Voltage

3

(input interface, device-internal, output interface)

4Temperature

Hardware

5

Example: Output transformer short circuit, EEPROM not
responding, …

Software
(internal software, application software, data record /

6

parameters)
Example:

7Additional modules

EEPROM data error

The system distinguishes between:

•event messages caused by operator errors.

•event messages caused by truck errors.

For operator errors there are three versions that can be displayed

in the truck depending on the display unit options.

•Event number display (e.g. CANDIS)

•Pictogram display

•Text message display

For truck errors the event number and possibly a fault graphic icon

(e.g. service key) will also be displayed.

Trucks that only use one luminous display (e.g. LED) use the

following flashing code:

•Each character of the four-digit event number is shown with a
2 Hz / 0.5 sec frequency (flashing).

The figure “zero” is displayed by flashing ten times.

Z

•After each character of the four-digit event message there is
a pause (LED off) of one second.

•After the complete four-digit event message a 3 second
pause (LED off) is set.

8CAN monitoring

External fault

9

Example: ISM

õUNGHEINRICH Event Messages

03.153

Description / cause / action and effects

The following table lists the event message with a description / cause / action and effect.

Z

Each event group (E) with the corresponding event number (XX) can be combined with different function groups (F), hence in the following
table the placeholder “F” is used for the first character “F” of the four-digit event number.
It also shows the operating status when the event occurred:

Operating status Explanation

Occurs during / directly after truck power up

Bootloader

(basic initialisation of components, possible change to flash mode).
Example: Checking the RAM / ROM (memory check)

G

System start

Self test

OperationOccurs during operation

System endOccurs during truck power-down (correct powering down of components, …)

UndefinedCan occur at any time

Occurs during installation of operating software of individual components.
Example: correct hardware installed, ...

Occurs during the self-test of each component, as coordinated by the master

The main contactor is then closed

õUNGHEINRICH Event Messages

“Event messages” table

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F E XX SOperational

Status

_1011System start

_1

_12Self test

02

_13Self test

_14

1Self test

Self test

Operation

DescriptionCause / Triggering EventAction

Supply via unexpected key
switch input

Contact closed instead of
open

Contact open instead of
closed

Main contactor permanently
on

Main contactor feedback
input implausible

Evaluation of three key switch inputs. Possible
encodings are 1, 2 or 4, otherwise the event message is
triggered.

On power-up the capacitor voltage should be one volt
(1V) below the battery voltage.

When the main contactor has switched on the capacitor
voltage should be the same as the battery voltage (within
500msec.), otherwise the event message is produced.

An attempt is being made to open the main contactor.
The event message is triggered if the monitoring system
detects that the main contactor has not opened after T >
time limit.

Feedback signal from main contactor status implausible
with main contactor control (error activated after limit
time)

-Check key switch input connection against the
wiring diagram;

-Replace controller;

-Test the main contactor output of the controller;

-Check wire connection;

-Replace contactor;

-Test the main contactor output of the controller;

-Check wire connection;

-Replace contactor;

-Replace controller;

Lithium-ion battery 24V/110Ah (in the case of
repeated faults):

-Check the harness of the lithium-ion battery and
replace if necessary;

-Replace battery contactor;

-Replace battery management system (BMS);

-Test the main contactor output of the controller;

-Check wire connection;

-Replace contactor;

_103

1Self test

2Self test

3Self test

Output transformer faulty
(phase U)

Output transformer faulty
(phase V)

Output transformer faulty
(phase W)

The semi-jumpers 1, 2 and 3 are controlled in turned for
50 msec at 25% PWM (pulse width modulation) when
the output transformer is closed (“Output transformer
deactivated” signal).
The event message is issued if at the end of the 50msec
period of the respective phase the following applies:
V

Phase_X

< (V

capacitor

/ 2) - 25%

-Replace controller;

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DescriptionCause / Triggering EventAction

Status

1Self test

_104

2Self test

3Self test

_1044Operation

Output transformer faulty
(phase U)

Output transformer faulty
(phase V)

Output transformer faulty
(phase W)

Error bit set for power
stageID

_1051Self testMotor cutout

Semi-jumpers 1, 2 and 3 are controlled in turn for
50msec at 25% PWM (pulse width modulation).
The event message is issued if at the end of the 50msec
period of the respective phase the following applies:
V

Phase_X

V

Phase_X

> (V
< (V

capacitor
capacitor

/ 4) 25% or
/ 4) - 25%

"Error, power stage ID : The power card of the power
stage can only obtain faulty information (ID) about the
identity and hence suitability of the card for the intended
powering of the operating system when the error bit is
set"

Semi-jumpers 1, 2 and 3 are controlled in turn for
50msec at 25% PWM (pulse width modulation).
The event message is issued if at the end of the 50msec
period of at least one of the two non-controlled phases
the following applies:
V

Phase

V

Phase

> (V
< (V

capacitor
capacitor

/ 4) 25% or
/ 4) - 25%

-Replace controller;

-Replace controller;

-Check motor connection wire (wire breakage);

-Replace motor;

_1052Self test

"Combi controller behaviour
for non-controlled power
stages" logic implausible

Semi-jumpers 1, 2 and 3 of a combi controller power
partare controlled in turn for 50msec at 25% PWM
(pulsewidth modulation).
The event message is issued if at the end of the 50msec
period of at least one of the semi-jumpers of the other
power part the following applies:
V

Phase_X

V

Phase_X

> (V
< (V

capacitor
capacitor

/ 2) + 15% or
/ 2) - 15%

-Switch the truck off and on again;

-Check the motor connections;

-Check for a short between two power stages
ormotors;

-Replace signal-evaluating controller;

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Status

_1061Operation

_1062Operation

_1063Operation

DescriptionCause / Triggering EventAction

Safety switch inputs
implausible

Deadman switch inputs
implausible

Slack-chain switch inputs
implausible

The safety switch consists of a NC and a NO contact.
When the button is pressed both contacts connect
simultaneously. As a result, only the 0/1 and 1/0
combinations should occur.
During operation combinations 0/0 and 1/1 (500msec.)
trigger the event message.
For a valid combination (0/1 or 1/0, 500msec) the event
message and the truck response are reset. For an
implausible condition the seat switch is considered to
beopen (-> the truck brakes with the coasting ramp).

During operation combinations 0/0 and 1/1 trigger the
event message. The event message can only be reset
by resetting the truck. The activation limit is 2000msec.

During operation combinations 0/0 and 1/1 trigger the
event message. For a valid combination (0/1 or 1/0),
theevent and the truck response are reset. The
activation limit is 1000msec.

-Check safety switch wire connection;

-Check safety switch;

-Replace safety switch;

Safety switches can include:

Z

- Deadman (foot switch),

- Seat switch,

- Tiller switch.

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

_1064Operation

_1065Operation

Cabin gate inputs
implausible

Optional cabin gate inputs
implausible

During operation combinations 0/0 and 1/1 trigger the
event message. For a valid combination (0/1 or 1/0),
theevent and the truck response are reset. The
activation limit is 2000msec.

During operation combinations 0/0 and 1/1 trigger the
event message. For a valid combination (0/1 or 1/0),
theevent and the truck response are reset. The
activation limit is 2000msec.

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

õUNGHEINRICH Event Messages

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Status

_1066Operation

_1067Operation

_1068Operation

_1069Operation

DescriptionCause / Triggering EventAction

Sideshift index inputs
implausible

Aisle recognition right inputs
implausible

Aisle recognition left inputs
implausible

Load handling inputs: no
signal

During operation combinations 0/0 and 1/1 trigger the
event message after a traverse path of more than 30mm.
For a valid combination (0/1 or 1/0), the event and the
truck response are reset. The activation limit is 0msec.

During operation combinations 0/1 and 1/0 trigger the
event message after the truck has travelled more than
100mm. The event message can only be reset by
resetting the truck. The activation limit is 100msec.

During operation combinations 0/1 and 1/0 trigger the
event message after the truck has travelled more than
100mm. The event message can only be reset by
resetting the truck. The activation limit is 100msec.

During operation combinations 0/0 and 1/1 trigger the
event message. The event message can only be reset
by resetting the truck. The activation limit is 2000 msec.

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Test sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

_10610Operation

_10611Operation

Load sensing inputs: no
signal

Logic test: signal at working
platform raised inputs
improbable

If the weight display > 300 kg the load sensors must be
applied. The event message can only be reset by
resetting the truck. The activation limit is 2000 msec.

During operation combinations 0/0 and 1/1 trigger the
event message. The event message can only be reset
by resetting the truck. The activation limit is 2000 msec.

-Check wiring with multimeter;

-Test sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Test sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

õUNGHEINRICH Event Messages

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Status

_10612Operation

_10613Operation

_10614Operation

_10615Operation

DescriptionCause / Triggering EventAction

Logic test: signal at left/right
gate lock inputs improbable

Logic test: No signal for gate
lock despite gate lock being
applied

Logic test: Signal for gate
lock present despite gate
lock not being applied

Logic test: No signal for gate
lock despite the lift
mechanism being above the
set height

During operation combinations 0/1 and 1/0 trigger the
event message. The activation limit is 2000 msec.

During operation no feedback triggers the message
when applied. The activation limit is 2000 msec.

During operation a feedback triggers the message
without being applied. The activation limit is 2000 msec.

During operation no feedback triggers the message
when lift mechanism is above the set height. The
activation limit is 2000 msec.

-Check wiring with multimeter;

-Test sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Test sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Test sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Test sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

_1071Operation

Operator protection switch
inputs implausible

The body protection switch consists of a NC and a NO
contact. When the button is pressed both contacts
connect simultaneously. As a result, only the 0/1 and 1/0
combinations should occur.
During operation combinations 0/0 and 1/1 (500msec.)
trigger the event message.
For a valid combination (0/1 or 1/0, 500msec) the event
message and the truck response are reset.

-Check wire connections;

-Check operator protection switch;

-Replace operator protection switch;

õUNGHEINRICH Event Messages

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F E XX SOperational

Status

_1072Operation

_1081Operation

_1082Operation

DescriptionCause / Triggering EventAction

Acknowledge button inputs
implausible

Touch mode switch inputs
implausible

"Crawl speed redundant
inputs" logic implausible

During operation combinations 0/0 and 1/1 (500 msec.)
trigger the event message.
For a valid combination (0/1 or 1/0, 500msecs) the event
and the truck response are reset.

The touch mode button consists of a NC and a NO
contact. When the button is pressed both contacts
connect simultaneously. As a result, only the 0/1 and 1/0
combinations should occur.
During operation combinations 0/0 and 1/1 (500msec.)
trigger the event message.
For a valid combination (0/1 or 1/0, 500msec) the event
message and the truck response are reset.

The "inching" button consists of a NC and a NO contact.
When the button is pressed both contacts switch
simultaneously. As a result, only the 0/1 and 1/0
combinations should occur.
During operation the combinations
0/0 and 1/1 (switched for 500msec.) activate the event
message.
For a valid combination (0/1 or 1/0, switched for 500
msec.)
the event and truck response are reset. The status is
assessed as an actuated status (adjustable inching
speed active)

-Check wire connections;

-Check button;

-Replace button;

-Check wire connection;

-Check touch mode button;

-Replace touch mode button;

-Check wire connections;

-Check crawl speed button;

-Replace crawl speed button;

_1083Operation

“Stop" button redundant
inputs” logic improbable

The "Stop" button consists of an NC and an NO contact.
When the button is pressed both contacts switch
simultaneously. As a result, only the 0/1 and 1/0
combinations should occur.
During operation the combinations
0/0 and 1/1 (500msec) trigger the event message.
For a valid combination (0/1 or 1/0, 500msec) the event
message and the truck's response are reset.

-Check parameter reading (side pedestrian mode
activated?);

-Check wire connections;

-Press "Stop" button;

-Replace "Stop" button;

õUNGHEINRICH Event Messages

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F E XX SOperational

Status

_1084

_1085

Self test

Operation

Self test

Operation

DescriptionCause / Triggering EventAction

“Handbrake lever redundant
inputs” logic implausible

“Parking brake switch
redundant inputs” logic
implausible

The "handbrake lever" switch consists of a NC and a NO
contact. When the button is pressed both contacts switch
simultaneously. As a result, only the 0/1 and 1/0
combinations should occur.
During operation the combinations
0/0 and 1/1 (switched for 500msec.) activate the event
message.
For a valid combination (0/1 or 1/0, switched for
500msec) the event message and the truck's response
are reset.

The "parking brake" switch consists of a NC and a NO
contact. When the button is pressed both contacts switch
simultaneously. As a result, only the 0/1 and 1/0
combinations should occur.
During operation the combinations
0/0 and 1/1 (switched for 500msec.) activate the event
message.
For a valid combination (0/1 or 1/0, switched for 500
msec.) the event message and the truck's response are
reset.

-Check wire connections;

-Check “handbrake lever” switch;

-Replace “handbrake lever” switch;

-Check wire connections;

-Check options keypad;

-Replace options keypad:

_1091Operation

Weigher button inputs
implausible

The weigher button consists of a NC and a NO contact.
When the button is pressed both contacts connect
simultaneously. As a result, only the 0/1 and 1/0
combinations should occur.
During operation combinations 0/0 and 1/1 (500msec.)
trigger the event message.
For a valid combination (0/1 or 1/0, 500msec) the event
message and the truck response are reset.

-Check wire connection;

-Check weigher button;

-Replace weigher button;

õUNGHEINRICH Event Messages

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F E XX SOperational

Status

_1101Operation

_1102Operation

_1111Operation

_1112Operation

DescriptionCause / Triggering EventAction

Lift/lower digital setpoints
are invalid

Lift/lower analog setpoints
are invalid

Braking setpoint and release
contact implausible

Braking setpoint and release
contact implausible

During operation the combination 1/1 for both buttons
pressed simultaneously for 500 msec triggers the
following event message.
For a valid combination (0/0, 0/1 or 1/0 [button not
pressed / only one button pressed]; 500msec) the event
message and the truck response are reset.

During operation the limits for 1/1 [both buttons pressed
simultaneously] for 500 msec have been exceeded.
For a valid combination (0/0, 0/1 or 1/0 [button not
pressed / only one button pressed]; 500msec) the event
message and the truck response are reset.

The event message is triggered if the following applies
for T = 250msec:
V

brake pedal

Logic signal release contact = 1
The event message is triggered if the following applies

for T = 250msec:
V

brake pedal

Logic signal release contact = 0

< 12.5% and

> 25% and

-Check wire connection;

-Check button;

-Replace button;

-Check wire connection;

-Check button;

-Replace button;

-Check wire connection;

-Check pedal power supply;

-Replace pedal;

-Replace signal-evaluating controller;

-Check wire connection;

-Check pedal power supply;

-Replace pedal;

-Replace signal-evaluating controller;

_1113Operation

_1114Operation

Braking setpoint and full
brake contact implausible

Braking setpoint and full
brake contact implausible

The event message is triggered if the following applies
for T = 250msec:
V

brake pedal

Logic signal full brake contact = 1
The event message is triggered if the following applies

for T = 250msec:
V

brake pedal

Logic signal full brake contact = 0

< 65% and

> 80% and

-Check wire connection;

-Check pedal power supply;

-Replace pedal;

-Replace signal-evaluating controller;

-Check wire connection;

-Check pedal power supply;

-Replace pedal;

-Replace signal-evaluating controller;

õUNGHEINRICH Event Messages

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Status

_1115Operation

_1116Operation

_1117Operation

_1121Operation

_1122Operation

DescriptionCause / Triggering EventAction

Combination "brake
setpoint" against brake
pressure invalid (movement
without brake pressure)

Combination "brake
setpoint" against brake
pressure invalid (brake
pressure without movement)

Sum of the voltages
"Braking 1 setpoint" to
"Braking 2 setpoint" invalid

Travel setpoint and release
contact invalid

Travel setpoint and release
contact invalid

The event message is triggered
if for T = 250 ms the following applies:

•V

brake pedal

> 80% and brake pressure < 40bar

The event message is triggered
if for T = 250 ms the following applies:

•V

brake pedal

< 20% (> 7 volt ) and brake pressure

>20bar

The event message is triggered
if for T = 250 ms the following applies:

•V

brake pedal

•V

brake pedal

1 + V
1 + V

brake pedal
brake pedal

2 > 5.5V or
2 < 4.5V

The event message is triggered if the following applies
for T = 250msec:
V

accelerator pedal

< 12.5% and

Logic signal release contact = 1
The event message is triggered if the following applies

for T = 250msec:
V

accelerator pedal

> 25 % and

Logic signal release contact = 0

-Check brake fluid level;

-Check proximity sensor;

-Check pressure sensors;

-Check brake fluid level;

-Check proximity sensor;

-Check pressure sensors;

-Check the cable connection;

-check accelerator-pedal power supply /
tiller head power supply;

-replace accelerator pedal / tiller arm;

-replace the controller that is evaluating the
signal;

-Check wire connection;

-Check accelerator pedal/tiller arm power supply;

-Replace accelerator pedal / tiller arm;

-Replace signal-evaluating controller;

-Check wire connection;

-Check accelerator pedal/tiller arm power supply;

-Replace accelerator pedal / tiller arm;

-Replace signal-evaluating controller;

_1123Operation

Total voltage "Travel1
setpoint" to "Travel2
setpoint" invalid

The event message is triggered
if for T = 250 ms the following applies:

•V

brake pedal

V

brake pedal

1 + V

brake pedal

2 < 4.5V

2 > 5.5V or V

brake pedal

1 +

-Check wire connection;

-Check accelerator pedal/tiller arm power supply;

-Replace accelerator pedal / tiller arm;

-Replace signal-evaluating controller;

õUNGHEINRICH Event Messages

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Status

_1131Operation

_1132Operation

_1141Self test

DescriptionCause / Triggering EventAction

Travel direction 1 and travel
direction 2 invalid

Direction setting signal
improbable (direction
sensor)

Motor speed signal
implausible

During operation the combination 1/1 [both travel
direction switch / button / twin pedal pressed] for 500
msec triggers the following event message.
For a valid combination (0/0, 0/1 or 1/0 [travel direction
switch/button/twin pedal not pressed or only one travel
direction switch/button/twin pedal pressed]; 500msec)
the event message and the truck response are reset.

If more than one direction sensor is installed:
While the truck is travelling, the system monitors if by
mistake more than one direction sensor (travel direction
switch on pilot, external direction sensor or twin pedal) is
installed. If this is the case, the event is triggered

Logic test: after a short period of motor control, the
speed sensor does not supply any signals

-Check wire connection;

-Check travel direction switch/button/twin pedal;

-Check travel direction switch/button/twin pedal;

-Replace signal-evaluating controller;

-Check parameter settings;

-Check installed accelerator (hardware);

-Check installed Pilots (hardware);

-Check travel direction switch / button / twin
pedal;

-Replace travel direction switch / button / twin
pedal;

-Rectify mechanical blockage of drive system;

-Check speed sensor power supply;

-Check wire connection;

-Replace speed sensor;

-Replace signal-evaluating controller;

_1151Operation

_1152Operation

_1161OperationIrregular speed signal

Motor powers without
setpoint

Motor powers without
setpoint

Motor powered for 500 msec without setpoint.
Logic: implausible status in controller

Convergence problem in monitor for the motor speed
Logic: implausible status in monitor

Jump from n_motor > 10% to n_motor < 1% and for
T = 80 msec. the following applies: n_motor < 1%

-Check motor connections;

-Check motor model, replace if necessary;

-Check motor connections;

-Check motor model, replace if necessary;

-Check speed sensor power supply;

-Check wire connection;

-Replace speed sensor;

-Replace signal-evaluating controller;

õUNGHEINRICH Event Messages

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F E XX SOperational

Status

_1162Operation

DescriptionCause / Triggering EventAction

Irregular speed signal (large
jump in evaluated speed
signal)

Incrementer damaged
The AC-3 Power Control (U8) has identified the sensor
bearing as being damaged. The AC-3 Power Control
(U8) monitors sensor to ensure the impulse wires are
single-channel, and to check for sudden changes in the
pulse rate and for constant power supply.
Sensor is damaged (broken wire, short circuit, incorrect
pulses);
Operating system wrongly flags a fault;
AC-3 Power Control component (sensor bearing control)
is faulty
Jump from n_Motor> 10 % to n_Motor< 1 % and
For T = 80 msec.:
n_motor< 1%

No signals from incremental transmitter 1B5.

-Check incrementer signals with multimeter;

-Check speed sensor power supply;

-Check wire connection;

-Replace speed sensor;

-Replace signal-evaluating controller;

-Manually move the shuttle to the channel start,
remove any blockage (use recovery vehicle);

-Reduce load on shuttle;

-Drive: check setpoint specification, motor
controller 9U19 and drive motor including
carbon brushes and incremental transmitter
1B5;

-Check wire connection;

-If the shuttle is overloaded, increase the travel
speed;

_1163Operation

_1171Operation

Implausible value for the
engine-speed signal

A speed sensor channel
does not pulse

Engine control unit is sending an incorrect value for the
engine-speed signal.

Both speed sensor tracks are counted. When the first
deviation limit is reached the system waits for a feasible
signal from the suspected broken track. When the
second limit is reached the event message is generated.

-Check speed-sensor power supply;

-Check the wiring;

-Replace speed sensor;

-Replace the controller that is evaluating the
signal;

-Check speed sensor incrementer channels;

-Replace speed sensor;

-Replace signal-evaluating controller;

õUNGHEINRICH Event Messages

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Status

_1172Operation

_1173Operation

DescriptionCause / Triggering EventAction

A speed sensor channel
does not pulse

No speed signal from the
travel impulse sensor
although travel sensor
indicates greater than

0.5km/h.

Incrementer damaged
The AC-3 Power Control (U8) has identified the sensor
bearing as being damaged. The AC-3 Power Control
(U8) monitors sensor to ensure the impulse wires are
single-channel, and to check for sudden changes in the
pulse rate and for constant power supply.
Sensor is damaged (broken wire, short circuit, incorrect
pulses);
Operating system wrongly flags a fault;
AC-3 Power Control component (sensor bearing control)
is faulty
Both sensor tracks are counted. When the first deviation
limit is reached the system waits for a feasible signal
from the suspected broken track. When the second limit
is reached the event is generated.

The counts for both incrementers are compared.
Ifthetravel incrementer supplies a speed signal of
>0.05km/h and the travel pulse contact controller
incrementer a speed signal of 0 km/h, the event is
triggered. The activation limit is 100msec.

-Check incrementer signals with multimeter;

-Check speed sensor power supply;

-Check wire connection;

-Replace speed sensor;

-Replace signal-evaluating controller;

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

_1174Operation

_1175Operation

No speed signal from travel
sensor although travel
impulse sensor indicates
greater than 0.5 km/h.

Deviation of more than

0.25km/h between travel
impulse sensor and travel
sensor

The counts for both incrementers are compared. If the
travel incrementer supplies a speed signal of 0 km/h and
the travel pulse contact controller incrementer a speed
signal of > 0.05 km/h, the event is triggered. The
activation limit is 100msec.

The counts for both incrementers are compared. If the
speed signals of both incrementers differ by more than

0.025 km/h, the event is triggered. The activation limit is
100msec.

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

õUNGHEINRICH Event Messages

03.1516

G

F E XX SOperational

Status

_1176Operation

_1177Operation

_1178Operation

_1179Operation

_11710Operation

DescriptionCause / Triggering EventAction

Directions obtained from
travel sensor and travel
impulse sensor are
contradictory

One incremental track
height measurement of the
proportional lift pulses, the
other does not

One incremental track
height measurement of the
free lift pulses, the other
does not

One incremental track
height measurement of the
auxiliary lift pulses, the other
does not

Main lift does not lower
despite the hydraulic motor
turning

The counts for both incrementers are compared. If the
speed of both incrementers > 0.01 km/h and the
directions of the speed signals for both incrementers are
contradictory, the event is triggered. The activation limit
is 100msec.

Both sensor tracks are counted. When the first deviation
limit is reached the system waits for a feasible signal
from the suspected broken track. When the second limit
is reached the event is generated.

Both sensor tracks are counted. When the first deviation
limit is reached the system waits for a feasible signal
from the suspected broken track. When the second limit
is reached the event is generated.

Both sensor tracks are counted. When the first deviation
limit is reached the system waits for a feasible signal
from the suspected broken track. When the second limit
is reached the event is generated.

The counts for both incrementers are compared. If the lift
controller incrementer supplies a speed signal, but the lift
height measurement incrementer does not supply a
signal after one second, the event is triggered. The
activation limit is 20msec.

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

_11711Operation

Main lift lowers despite the
hydraulic motor not turning

The counts for both incrementers are compared. If the lift
height measurement incrementer supplies a speed
signal, but the lift controller incrementer does not supply
a signal after one second, the event is triggered. The
activation limit is 20msec.

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

õUNGHEINRICH Event Messages

03.1517

G

F E XX SOperational

Status

_11712Operation

_11713Operation

_11714Operation

_11715Operation

_11716Operation

_11717Operation

DescriptionCause / Triggering EventAction

Excessive deviation
between lift speed and pump
speed

Proportional lift incrementer
1: One channel defective

Proportional lift incrementer
2: One channel defective

Free lift incrementer 1:
Onechannel defective

Free lift incrementer 2:
Onechannel defective

Aux. lift incrementer 1:
Onechannel defective

The counts for both incrementers are compared. If the
incrementers for the lift control and lift height
measurement are not synchronised within three
seconds, the event is triggered. The activation limit is
100msec.

Channel A or channel B are defective on the incrementer

Channel A or channel B are defective on the incrementer

Channel A or channel B are defective on the incrementer

Channel A or channel B are defective on the incrementer

Channel A or channel B are defective on the incrementer

-Check the hydraulic system for leaks;

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

_11718Operation

_11719Operation

_11720Operation

Logic test: Main lift does not
lower despite pump rotating

LH load wheel sensor
incrementer deviation

RH load wheel sensor
incrementer deviation

The counts for both incrementers are compared.
If the lift controller incrementer supplies a speed signal,
but the lift height measurement incrementer does not
supply a signal after one second, the event is triggered.
The activation limit is 20 msec.

Incorrect counting detected between ChA and ChB.

Incorrect counting detected between ChA and ChB.

-Check incrementer signals with multimeter;

-Check wiring with multimeter;

-Replace speed sensor;

-Check mounting position of sensor to magnet;

-Replace sensor;

-Check mounting position of sensor to magnet;

-Replace sensor;

õUNGHEINRICH Event Messages

03.1518

G

F E XX SOperational

Status

LH load wheel sensor

_11721Operation

_11722Operation

_11723Operation

_1181Undefined

_1191OperationCabin position implausible

excessive deviation from
reading to drive wheel

RH load wheel sensor
excessive deviation from
reading to drive wheel

Three channel incrementer
comparison with sensor
bearing incrementer

Speed sensor in load wheel
sensor damaged

DescriptionCause / Triggering EventAction

Incorrect counting detected between LH load wheel
sensor and drive wheel incrementer.

Incorrect counting detected between RH load wheel
sensor and drive wheel incrementer.

The sensor bearing and three channel incrementer are
synchronised with respect to each other every 120 mm.
The error is generated if the sensor bearing deviates
from the three channel sensor by >= 5 mm.

This event message is not currently used.

The event message is triggered
if for T >= time limit the following applies:

•A change in status of the platform lower-limit sensor
from the neutral position into the "Platform raised"
position is detected while driving

-Check mounting position of sensor to magnet;

-Check tyre quality;

-Replace sensor;

-Check mounting position of sensor to magnet;

-Check tyre quality;

-Replace sensor;

-Test the electrical function of the sensor bearing

-Test the mechanical function of the sensor
bearing

-Check speed sensor power supply;

-Check wire connection;

-Replace speed sensor;

-Replace signal-evaluating controller;

-Check wiring from controller to platform lower
limit sensor;

-Check / replace lower limit sensor;

-Check lift motor power cables;

- Replace the signal-generating controller;

õUNGHEINRICH Event Messages

03.1519

G

F E XX SOperational

Status

_1201OperationDrive wheel slip excessive

_1211Self testOutput stage faulty

_1221

“Digital signal” logic/signal
shape implausible

DescriptionCause / Triggering EventAction

Excessive slip / drive has probably been tipped
The AC-3 Power Control (U8) has detected excessive
deviation (slip) between the phase current frequency and
the speed.
The activation limit is 20msec.
More torque is required from / placed on the motor than it
can provide / accept;
Field current is reduced excessively;
Error accompanying sensor bearing control or output
stage protection;
Operating system does not allow enough slip for the
driven motor;
AC-3 Power Control component is damaged

The lift actuator jumper is controlled for max. 40 msec at
100 % PWM (pulse width modulation).
The event message is triggered if the pump voltage
drops within this time below 10% of the capacitor
voltage: V

This event message is triggered if the signal shape or
modulation of a digital signal is implausible.

pump

> V

capacitor

/ 10.

-Check motor connection wire (wire breakage);

-Check motor model, replace if necessary;

-Check motor and replace if necessary;

-Check motor connection wire (wire breakage);

-Check motor model, replace if necessary;

-Replace controller;

-Replace tiller head;

_1231Operation

_1232Operation

Brake response switch
signal implausible (in idle)

Brake response switch
signal implausible (in idle)

The event message is triggered if after the brake applies
the feedback switch does not report this status (after
1sec.).

The event message is triggered if after the brake is
released the feedback switch does not report this status
(after 300msec.).

-Remove physical blockage from the brake;

-Check wire connection;

-Check switch and replace if necessary;

-Replace signal-evaluating controller;

-Remove physical blockage from the brake;

-Check wire connection;

-Check switch and replace if necessary;

-Replace signal-evaluating controller;

õUNGHEINRICH Event Messages

03.1520

G

F E XX SOperational

Status

_1233Operation

_1234Operation

_1235System start

_1236Operation

DescriptionCause / Triggering EventAction

Brake response switch
signal implausible (speed >
1km/h)

Brake does not hold on a
ramp (failsafe brake)

Failsafe brake does not hold
(on system start or motor
start)

Left load wheel brake not
controlled but feedback
signal present

This event message is triggered if the response switch
signals applied status during travel.

The event message is triggered
if for T > 250 ms the drive system

•reports an actual rotational speed > 20rpm when the
brake is applied.

On system start or engine start, the traction drives are
subjected to a travel request for a test time. If a truck
actual speed is detected, this event will be triggered.

Left load wheel brake not controlled but feedback signal
is still present
The activation limit is 1000msec.

-Remove physical blockage from the brake;

-Check wire connection;

-Check switch and replace if necessary;

-Replace signal-evaluating controller;

-Check brake wear, replace wear parts / brake if
necessary.

-Measure current through the magnetic coil (you
should not be able to measure any current when
the brake is applied).

-Replace signal-issuing controller;

-Check brake wear, replace wear parts / brake if
necessary.

-Measure current through the magnetic coil (you
should not be able to measure any current when
the brake is applied).

-Replace signal-issuing controller;

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

_1237Operation

_1238Operation

Left load wheel brake
controlled although
feedback signal missing

Right load wheel brake not
controlled but feedback
signal present

Left load wheel brake controlled but feedback signal is
not present
The activation limit is 1000 msec.

Right load wheel brake not controlled but feedback
signal is still present
The activation limit is 1000 msec.

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

õUNGHEINRICH Event Messages

03.1521

G

F E XX SOperational

Status

Right load wheel brake

_1239Operation

_12310System start

_12311Operation

_1241OperationLift height signal implausible

controlled although
feedback signal missing

hydraulic fail-safe brake
cannot be released

Parking brake feedback
contacts implausible

DescriptionCause / Triggering EventAction

Right load wheel brake controlled but feedback signal is
not present.
The activation limit is 1000 msec.

for 500 msec.: brake energised and pressure on
emergency stop mechanism > 3 bar

If the combinations 0/0 and 1/1 appear for longer than
the limit time, a message is activated.

The lift height sensor sequence is implausible. This
event message is triggered if the following applies for
T=> 500msec:
Sequence of 2 lift height signals is implausible, e.g.
Toplift height signal without Bottom lift height signal

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Listen to check if emergency stop mechanism
switches:

-If so, check the pressure sensor and replace if
necessary;

-If not, check the relay and replace if necessary;

-Check brake wear, replace wear parts / brake if
necessary;

-Check wire connection;

-Check switch and replace if necessary;

-Replace signal-evaluating controller;

-Check wire connection;

-Check sensor and replace if necessary;

-Replace signal-evaluating controller;

_1242Operation

_1243Operation

“Stacking height redundant
inputs” logic implausible

“Free lift sensor redundant
inputs” logic implausible

The event message is triggered
if for T = 100 ms the following applies:

•NC and NO contacts have the same status
The event message is triggered

if for T = 250 ms the following applies:

•NC and NO contacts have the same status
When the event occurs, the master assumes that the
truck is in the mast lift stage.

-Check wire connection;

-Check sensor and replace if necessary;

-Replace signal-evaluating controller;

-Check wire connection;

-Check sensor and replace if necessary;

õUNGHEINRICH Event Messages

03.1522

G

F E XX SOperational

Status

_1244Operation

_1245Operation

_1246Operation

_1247Operation

DescriptionCause / Triggering EventAction

Lifting stroke greater than 2x
free lift, however mast lift
has not been detected

“Lift limit switch redundant
inputs” logic implausible

“Initial lowering limit
redundant inputs” logic
implausible

Logic: lift system limit
switchfaulty.

Integrated lift stroke is greater than 2x the set free lift
height, however sensor indicates free lift. When the
event occurs, the master assumes that the truck is in the
mast lift stage.

The event message is triggered
if for T = 100 ms the following applies:

•NC and NO contacts have the same status
The event message is triggered

if for T = 100 ms the following applies:

•NC and NO contacts have the same status

No positive signal at 7B38.1 - 7B38.4 during lifting or
lowering.

-Check wire connection;

-Check sensor and replace if necessary;

-Check wire connection;

-Check sensor and replace if necessary;

-Replace signal-evaluating controller;

-Check wire connection;

-Check sensor and replace if necessary;

-Replace signal-evaluating controller;

-If possible, do not use the lift system, as the lift
limit is deactivated. The lift mechanism could
move too far and be damaged;

-If absolutely necessary, carefully lower the
platform manually. Note that lowering must end
as soon as the shuttle can move freely
underneath the pallets;

-Check limit switches 7B38.1–7B38.4; check
signal feedback at inputs R3–R6 of the main
controller 8U37;

-Check the wiring;

_1248Operation

_1251Operation

Lift stroke greater than 1.5x
free lift, however mast lift
has not been detected

Signal on load sensing
inputs is implausible

Integrated lift stroke is greater than 1.5x the set free lift
height, however sensor indicates free lift.
When the event occurs, the master assumes that the
truck is in the mast lift stage.
Event is reset when mast lift is detected.

During operation combinations 0/0 and 1/1 trigger the
event message. The event message can only be reset
by resetting the truck. The activation limit is 2000msec.

-Check free-lift sensor (position, contamination);

-Check free-lift height setting (JUDIT);

-Check pump drive (e.g. worn pump?);

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

õUNGHEINRICH Event Messages

03.1523

G

F E XX SOperational

Status

_1252Operation

_1261Operation

_1262Operation

_1263Operation

Description Cause / Triggering Event Action

No load sensing signal when
weight > 300 kg

Feedback from a main
contactor contact or the
emergency stop relay
although the Emergency
Disconnect switch is not
activated.

Feedback from the
Emergency Disconnect
switch at channel 1 of the
Safe computer although the
Emergency Disconnect
switch has not been
activated

Feedback from the main
contactor level 1 control at
channel 1 of the Safe
computer although contactor
level 1 has not been
activated.

Plausibility test: If the weight display >300kg the load
sensors must be applied. The event message can only
be reset by resetting the truck. The activation limit is
2000msec.

Feedback from a main contactor contact or the
emergency stop relay although the Emergency
Disconnect switch is not activated. The event message
can only be reset by resetting the truck. The activation
limit is 100msec.

Feedback from the Emergency Disconnect switch at
channel 1 of the Safe computer although the Emergency
Disconnect switch has not been activated. The event
message can only be reset by resetting the truck. The
activation limit is 100msec.

Feedback from the main contactor level 1 control at
channel 1 of the Safe computer although contactor level
1 has not been activated. The event message can only
be reset by resetting the truck. The activation limit is
100msec.

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

_1264Operation

Feedback from the main
contactor level 2 control at
channel 1 of the Safe
computer although contactor
level 1 has not been
activated.

Feedback from the main contactor level 2 control at
channel 1 of the Safe computer although contactor level
1 has not been activated. The event message can only
be reset by resetting the truck. The activation limit is
100msec.

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

õUNGHEINRICH Event Messages

03.1524

G

F E XX SOperational

Status

_1265Operation

_1266Operation

_1267Operation

DescriptionCause / Triggering EventAction

Feedback from the
Emergency Disconnect
switch at channel 2 of the
Safe computer although the
Emergency Disconnect
switch has not been
activated

Feedback from the main
contactor level 1 control at
channel 2 of the Safe
computer although contactor
level 1 has not been
activated.

No feedback from the
Emergency Disconnect
switch at channel 1/2 of the
Safe computer although the
Emergency Disconnect
switch has been activated

Feedback from the Emergency Disconnect switch at
channel 2 of the Safe computer although the Emergency
Disconnect switch has not been activated. The event
message can only be reset by resetting the truck. The
activation limit is 100msec.

Feedback from the main contactor level 1 control at
channel 2 of the Safe computer although contactor level
1 has not been activated. The event message can only
be reset by resetting the truck. The activation limit is
200msec.

No feedback from the Emergency Disconnect switch at
channel 1/2 of the Safe computer, although activated
The event message can only be reset by resetting the
truck. The activation limit is 200msec.

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

_1268Operation

_1269Operation

_12610Operation

No feedback from relay K1
despite Safe computer
activation

No feedback from relay K2
despite Safe computer
activation

No feedback from relay K3
despite Safe computer
activation

No feedback from relay K1 although the Safe computer
has been activated. The event message can only be
reset by resetting the truck. The activation limit is
200msec.

No feedback from relay K2 although the Safe computer
has been activated. The event message can only be
reset by resetting the truck. The activation limit is
200msec.

No feedback from relay K3 although the Safe computer
has been activated. The event message can only be
reset by resetting the truck. The activation limit is
200msec.

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

õUNGHEINRICH Event Messages

03.1525

G

F E XX SOperational

Status

_12611Operation

_12612Operation

_12613Operation

_12614System start

_12615Operation

DescriptionCause / Triggering EventAction

No feedback from relay K4
despite Safe computer
activation

No feedback from main
contactor 1 despite "main
contactor 1" signal activation

No feedback from main
contactor 2 despite "main
contactor 2" signal activation

Test routine for emergency
stop circuit by the Safe
computer has failed

Different input statuses
between the two Safe
computers

No feedback from relay K4 although the Safe computer
has been activated. The event message can only be
reset by resetting the truck. The activation limit is
200msec.

No feedback from main contactor 1 although the Safe
computer has been activated. The event message can
only be reset by resetting the truck. The activation limit is
200msec.

No feedback from main contactor 2 although the Safe
computer has been activated. The event message can
only be reset by resetting the truck. The activation limit is
200msec.

Power up test for emergency stop circuit by the Safe
computer has failed The event message can only be
reset by resetting the truck. The activation limit is
20msec.

Redundant controllers of the Safe computer have
detected different input statuses. The event message
can only be reset by resetting the truck. The activation
limit is 100msec.

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

_12616System start

_12617System start

Comparison of channel A /
channel B of external
Emergency Disconnect of
APM + PLC for diversity

Monitoring of APM+
Emergency Stop cancel
request and the
power supply.

The error is triggered for the combination 1/0 or 0/1.
Activation limit 100 ms.

The Emergency Stop request is withdrawn via the
CanBus, however there is no corresponding Emergency
Disconnect feedback.

-Check information in the truck display;

-Assess wiring;

-Check CAN-Bus;

-Check information in the truck display;

-Assess wiring;

-Check CAN-Bus;

õUNGHEINRICH Event Messages

03.1526

G

F E XX SOperational

Status

_12618System start

_1271Operation

_1281Operation

_1282Operation

_1291Operation

_1292Operation

_1293Operation

DescriptionCause / Triggering EventAction

Monitoring of APM+
Emergency Stop cancel
request and the
power supply.

Main Lift lowers without
activation signal

Main lift: free lift has lowered
before proportional lift

Main lift: proportional lift has
lowered before free lift

Main lift: Permissible
lowering speed exceeded

Aux. lift: Permissible
lowering speed exceeded

Sideshift: Permissible speed
exceeded

The Emergency Stop request is set via the CanBus,
however there is no corresponding Emergency
Disconnect feedback.

Main Lift stage has lost height without request. The
event message appears as soon as the lift height lowers
by more than 50mm without request.

The free lift stage has moved hydraulically although the
proportional lift stage was not fully retracted.

The proportional lift stage has moved hydraulically
although the free lift stage was not fully retracted.

The permissible lowering speed has been exceeded.

The permissible lowering speed has been exceeded.

The permissible sideshift speed has been exceeded.

-Check information in the truck display;

-Assess wiring;

-Check CAN-Bus;

-Check mast mechanics;

-Check mast hydraulics;

-Check mast mechanics;

-Check mast hydraulics;

-Check mast mechanics;

-Check mast hydraulics;

-Check mast mechanics;

-Check mast hydraulics;

-Compare actual speed with data sheet values;

-If it is too high, adjust to data sheet value;

-Compare the actual sideshift speed with the
data sheet values;

-If the sideshift speed has been exceeded, set it
to the data sheet values;

_1294Operation

_1301Operation

Rotate: Permissible speed
exceeded

Main lift does not reach pre­tension moment in
prescribed time

The permissible rotating speed has been exceeded.

The pre-tension moment could not be established in the
set time.

-Compare the actual rotating speed with the data
sheet values;

-If the rotating speed has been exceeded, set it
to the data sheet values;

-Check the pre-tension torque with JUDIT and
adjust if necessary;

-Check mechanical system of the mast;

-Check mast hydraulics;

õUNGHEINRICH Event Messages

03.1527

G

F E XX SOperational

Status

_1302Operation

_1303Operation

_1304Operation

_1311System start

_1312System start

DescriptionCause / Triggering EventAction

Aux. lift does not reach pre­tension moment in
prescribed time

Pallet clamp does not reach
the "CLOSED" end position
in the prescribed time

Pallet clamp does not reach
the "OPEN" end position in
the prescribed time

Emergency stop circuit
power-up test: Emergency
Stop switch activated, but
CAN-BUS not OK

Emergency stop circuit
power-up test: no activation
of any pulse contact
controllers

The pre-tension moment could not be established in the
set time.

The pallet clamp "CLOSED" end position could not be
reached in the set time.

The pallet clamp "OPEN" end position could not be
reached in the set time.

CAN-BUS status damaged during booting. The event
message can only be reset by an Emergency Stop reset.
The activation limit is 1000msec.

No pulse contact controller has reported charge circuit
activation. The charging of the pulse contact controllers
must be finished within 10seconds. The activation limit
is 1000msec.

-Check the pre-tension torque with JUDIT and
adjust if necessary;

-Check mechanical system of the mast;

-Check mast hydraulics;

-Check the hydraulic setpoint and adjust if
necessary;

-Check the pallet clamp mechanisms for
sluggishness;

-Check the hydraulic setpoint and adjust if
necessary;

-Check the pallet clamp mechanisms for
sluggishness;

-Check wiring with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check the charging voltage on the controllers;

-Check wiring;

_1313System start

_1314System start

Emergency stop circuit
power-up test: no lift
controller activation

Emergency stop circuit
power-up test: no traction
controller activation

The hydraulic controller has not reported charge circuit
activation. The charging of the pulse contact controllers
must be finished within 10 seconds. The activation limit
is 1000msec.

The traction controller has not reported load circuit
activation. The charging of the pulse contact controllers
must be finished within 10 seconds. The activation limit
is 1000msec.

-Check the charging voltage on the controllers;

-Check wiring;

-Check the charging voltage on the controllers;

-Check wiring;

õUNGHEINRICH Event Messages

03.1528

G

F E XX SOperational

Status

_1315System start

_1316System start

_1317System start

_1321System start

DescriptionCause / Triggering EventAction

Emergency stop circuit
power-up test: no steering
controller activation

Emergency stop circuit
power-up test: no release of
main contactor level 2

Emergency stop circuit
power-up test: non-defined
EMERGENCY STOP error

power circuit activated
during charging

The steering controller has not reported load circuit
activation. The charging of the pulse contact controllers
must be finished within 10 seconds. The activation limit
is 1000 msec.

Feedback contact of second main contactor level not
closed within 10 seconds. The activation limit is
1000msec.

Other non-separated event message in main contactor
circuit. This event message does not occur in normal
operation. The activation limit is 1000msec.

Charge

The AC-3 Power Control (U8) has been activated while
its internal capacitors were charging.
The main contactor was opened during active control.
Power circuit activated during charging. The activation
limit is 20msec.
The main contactor was disconnected during active
control;
The control system was activated before the main
contactor was closed and the internal capacitors were
charged;
Installation of the AC-3 Power Control component is
damaged;
AC-3 Power Control component (voltage measurement)
is damaged;

-Check the charging voltage on the controllers;

-Check wiring;

-Check the charging voltage on the controllers;

-Check wiring;

The event message should not occur.

Z

Otherwise contact troubleshooting specialists;

-Check power cables (main current connections,
integrated charging circuit wiring,...);

-Check main current fuses and replace if
necessary;

-Replace AC-3 Power Control interface card;

_1322Self test

Capacitor pre-charge cannot
be switched off

The capacitor voltage should reduce by at least 1 V
within 750 msec. of the pre-charge circuit being switched
off.

-Replace controller;

õUNGHEINRICH Event Messages

03.1529

G

F E XX SOperational

Status

_1323Self test

_1331Operation

_1332Operation

_1333Operation

DescriptionCause / Triggering EventAction

Capacitor pre-charge
(output stage pre-charge)
not complete

Ground system track 1 left
actual value sensor system:
invalid channel A / channel
B value relationship

Ground system track 2 left
actual value sensor system:
invalid channel A / channel
B value relationship

Ground system track 3 left
actual value sensor system:
invalid channel A / channel
B value relationship

The condition (V-key - V-cap.) < limit voltage is not met
within a fixed time after activating the pre-charge circuit.

Switch status of ground sensors unequal. The activation
limit is 20msec.

Switch status of ground sensors unequal. The activation
limit is 20msec.

Switch status of ground sensors unequal. The activation
limit is 20msec.

-Check battery voltage;

-Check key switch voltage;

-Check controller power connections for short
circuits;

-Check harness for short circuit;

-Replace component;

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace
ifnecessary;

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace
ifnecessary;

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

_1334Operation

_1335Operation

Ground system track 1 right
actual value sensor system:
invalid channel A / channel
B value relationship

Ground system track 2 right
actual value sensor system:
invalid channel A / channel
B value relationship

Switch status of ground sensors unequal. The activation
limit is 20msec.

Switch status of ground sensors unequal. The activation
limit is 20msec.

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

õUNGHEINRICH Event Messages

03.1530

G

F E XX SOperational

Status

_1336Operation

_1341Operation

_1343Operation

_1345Operation

_1347Operation

DescriptionCause / Triggering EventAction

Ground system track 3 right
actual value sensor system:
invalid channel A / channel
B value relationship

Brake force governor: invalid
channel A / channel B value
relationship

Traverse sensor system:
invalid channel A / channel
B value relationship

Rotate sensor system:
invalid channel A / channel
B value relationship

Left hand support
mushroom: invalid channel
A / channel B value
relationship

Switch status of ground sensors unequal. The activation
limit is 20msec.

Analog sensor value relationship deviates by more than

2.5°. The activation limit is 100 msec.

Analog sensor value relationship deviates by more than

2.5°. The activation limit is 100 msec.

Analog sensor value relationship deviates by more than

2.5°. The activation limit is 100 msec.

Analog sensor value relationship deviates by more than

2.5°. The activation limit is 100 msec.

-Check wiring with multimeter;

-Check sensor system with multimeter;

-Check computer component inputs;

-Repair faulty components and replace if
necessary;

-Check sensor wiring;

-Measure sensor signals with multimeter;

-Replace sensor;

-Check sensor wiring;

-Measure sensor signals with multimeter;

-Replace sensor;

-Check sensor wiring;

-Measure sensor signals with multimeter;

-Replace sensor;

-Check sensor wiring;

-Measure sensor signals with multimeter;

-Replace sensor;

_1349Operation

_13411Operation

_13413Operation

Right hand support
mushroom: invalid channel
A / channel B value
relationship

Steering actual value sensor
systems: invalid channel A /
channel B value relationship

Steering setpoint device:
invalid channel A / channel
B value relationship

Analog sensor value relationship deviates by more than

2.5°. The activation limit is 100 msec.

Analog sensor value relationship deviates by more than

2.5°. The activation limit is 100 msec.

Analog sensor value relationship deviates by more than

2.5°. The activation limit is 100 msec.

-Check sensor wiring;

-Measure sensor signals with multimeter;

-Replace sensor;

-Check sensor wiring;

-Measure sensor signals with multimeter;

-Replace sensor;

-Check sensor wiring;

-Measure sensor signals with multimeter;

-Replace sensor;