HELI G2 Series User Manual

43
(1) Handbrake switch is damaged or wiring is wrong.
(2) Handbrake switch works normally. In TESTER menu,
handbrake is always ON. This is a logic fault, so change
the controller.
236
CURRENT
GAIN
Fault of
current gain
The maximum current gain parameter is a factory set
value, which indicates that the max. current regulating
parameter program has not be used.
Resolution: Correctly set program for current gain
parameter by ZAPI technical personnel.
237
ANALOG
INPUT
Fault of
Analog Input
The fault signal is produced when A/D of all analog
signals is converted into a fixed value and delay exceeds
400 millisecond. This function is used to check the fault
of A/D converter or analog signal conversion.
Fault analysis: Change the controller if the fault always
exists.
238
WRONG ZERO
VOLTAGE
Wrong Zero
Voltage
During startup, the feedback value of high end voltage of
VMN is not at about 2.5V. The circuit of controller is
damaged.
Fault analysis : The following checks are suggested:
(1) Internal connection of motor.
(2) Power cable connection of motor.
(3) Drain current between motor and vehicle casing.
(4) If the motor connection is good, the problem is inside
the controller and changes it.
239
SAFETY
OUTPUT
Failure of
safety output
Driver short circuit of safety output.
Fault analysis: Check if there is short circuit or Low
impedance push-pull output betweenA19 and -BATT. If it
is the circuit trouble of driver of logic card, change the
controller.
240
HARDWARE
FAULT
Hardware
circuit fault
Before driving the coil of main contactor, controller tests
MOS driver or the auxiliary output drive is the invalid
watchdog circuit signal. If it is not driven, there produces
a fault signal.
Fault analysis: Change the controller.
241
FLASH
CHECKSUM
Flash
Memory fault
When key is switched on, the program is a positive value
in flash memory and the fault signal is produced in case of
negative value.
Fault analysis: The problem is on flash memory of
microcontroller. The flash memory may be damaged or
the program stored destroyed. Try to reset the program of
logic card. The fault exists in the microcontroller if the
fault still exists, Change the controller.
242
ENCODER
LOCKED
Feedback
signal fault of
encoder
Under normal condition， if the target speed is greater
than10 Hz and the rotation speed of motor higher than 1.5
Hz, the feedback signal of encoder checked by controller
should exceed a threshold value. If not, the controller will
give alarm. Test the motor encoder and see if motor or
wiring is normal and if installation correct. Change the
controller if periphery is normal.
243
SENS MOT
TEMP KO
Fault of
temperature
sensor
Phenomenon：The output signal of temperature sensor of
motor exceeds the scope.

HELI G2 Series Specifications

General

Brand	HELI
Model	G2 Series
Category	Forklifts
Language	English