Hitachi J100 Inverter Error Codes - Technogym Runrace Service Maintenance Manual

RUNRACE : Service & Maintenance Manual - rev. 2.0

11.5. HITACHI J100 INVERTER ERROR CODES

The inverter memorizes all the errors detected during operation, in the form of a code which
indicates the cause of the error. The table below lists the error codes and their meaning, as referred
to in chapter 6.
DESCRIPTION CAUSES
Power circuits
protection
Overload protection When the internal thermostat of the inverter detects a motor
Braking resistor
overload
Overvoltage
protection
EEPROM error
Low voltage
protection
CT error
CPU error
External shutdown
USP error
Ground short circuit
protection
To display the inverter error codes, follow the instructions below or refer to pages 8-14 of the
inverter manual:
6. Remove the motor guard.
7. Turn on the machine.
8. Repeatedly press the "FUNC" key on the inverter keyboard until "ERR" appears.
9. Press the "1" key to display the last error saved. For each error, three different values are
alternately displayed:
• The error code.
• Current at the time of the error.
A short-circuit on an inverter output or a motor block
causes a high current to flow, generating this error. If
the current or temperature of the principal components
exceeds a preset threshold, the output is disconnected.
overload, the output is disconnected.
When the external resistor is used too frequently, and an
overvoltage is detected caused by interruption of the BRD function,
the output is disconnected.
When the voltage exceeds a preset threshold, due to motor
regeneration phenomena, this safety is tripped and the output is
disconnected.
When an error is detected on the EEPROM memory which stores
the working program, the output is disconnected.
A drop in the input voltage below 150-160 V triggers this error, and
the output is disconnected.
When a major noise source is situated near the inverter, or there is a
malfunction in the internal current transducer circuit, the output is
disconnected.
If a malfunction is detected in the internal CPU, the output is
disconnected.
One of the motor thermal cutouts has opened, the inverter has
detected it and disconnected the output.
Appears if the inverter is turned on with the start key pressed (non
in use on Runrace).
If one of the inverter phases has a leak or short-circuit to ground,
the output is disconnected.
ERR.
Constant E1
speed
Deceler. E2
Acceler. E3
Stop E4
E5
E6
E7
E8
E9
E10
E11
E12
E13
E14
Page 11.9