HELI G2 Series User Manual

38
(2) Check when it is under standby application: circuit of watch dog, phase
voltage, drive of contactor, current sensor, CAN-BUS interface.
(3) Check when working: circuit of watch dog, drive of contactor, current sensor,
CAN-BUS interface.
(4) Continuous check: inverter temperature, motor temperature
There are two ways to show the diagnosis: one is to use digital handhold unit; the
other way is that fault code is transmitted by CAN BUS. The fault code and module
node are shown on intelligent instrument.
Table 4-5 Common fault of traction system
Fault
Code
Implication
Note
Measures
13
EEPROM KO
EEPROM
damaged
The fault is in the internal memory for storing and
regulating parameters. When the fault appears, the
machine automatically stops. If the fault still exists, when
reconnecting it after switching off the electric lock,
change the controller. If the fault disappears, the
parameters previously stored will be replaced with default
value.
17
LOGIC
FAILURE #3
Logic card
failure 3
Current protection function failure of logic card: change
the controller.
18
LOGIC
FAILURE #2
Logic card
failure 2
Circuit failure of phase voltage feedback hardware on
logic card. Change the controller.
19
LOGIC
FAILURE #1
Logic card
failure 1
The failure produced when the function of low or over
voltage acts. In 24V system, the voltage detected by
controller exceeds 45V or lower than 9V. In 48V system,
the voltage detected by controller exceeds 65V or lower
than 11V. Possible causes:
(1) Check if there is short circuit in the electric circuit
system such as DC-DC and brake coils etc or if the input
power supply contact of controller is good.
(2) If the battery voltage is excessively low or high.
(3) Check B+ and B and see if the power cable on the
wiring terminal of contactor etc is tightly fixed.
(4) If the voltage calibration parameter of controller is in
consistent with actual voltage.
(5) There is circuit fault of overvoltage protection
hardware on logic card, change the controller.
30
VMN LOW
Low VMN
Cause：The high-end voltage of MOS during startup is
66% smaller than the capacitor voltage or this voltage is
smaller than the required value in the operation of motor.
Possible causes:
(1) Wiring of motor is incorrect or there is circuit problem
in motor. Check if three-phase connection of motor is
correct, if there is any leakage of electricity on ground and

HELI G2 Series Specifications

General

Brand	HELI
Model	G2 Series
Category	Forklifts
Language	English