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14 Service and Maintenance
Routine inspection and maintenance
To make the controller run stably, a periodic inspection
must be performed every year.
Requirement of inspection and maintenance:
(1) The inspection must be performed by professional
technical personnel.
(2) If necessary, cut off the power supply of the controller
first.
(3) Avoid leaving any metal components in the controller,
or else they might cause damage to the equipment.
(4) An electric insulation test has been made on the
controller before it has left factory. A further test is not
necessary.
(5) Do not use the megohmmeter to test the control
circuit.
(6) When conducting any insulation test on the motor, you
must dismantle the connection between motor and
controller.
Main points for inspection and maintenance
– Please use the controller under the environmental
conditions of this manual. Inspect and maintain as per the
following table.
Table 8: Inspection overview
Inspect frequency
Inspection item
regular
running environment
cooling system
controller body
motor
input and output parameter
BERNT LORENTZ GmbH & Co. KG Kroegerskoppel 7, 24558 Henstedt-Ulzburg, Germany, Tel. +49 (0) 4193 7548 - 0, Fax - 29, www.lorentz.de
All specifi cations and information are given with good intent, errors are possible and products may be subject to change without notice. Pictures may
differ from actual products depending on local market requirements and regulations.
Inspection content
Judgment standard
1. temperature, humidity
1. temperature <50°C
2. dust, gas
2. humidity <90%, no dew condensation, no peculiar smell, flammable, explosive gas
1. installation environtment
1. excellent ventilation in installation environment
2. radiator
2. radiator air duct not blocked
1. vibration, temperature rise
1. stable vibration, normal temperature of the shell
2. noise
2. no abnormal noise and peculiar smell
3. lead, terminal
3. fastening screws not loose
1. vibration, temperature rise
1. steady running and normal temperature
2. noise
2. no abnormal and uneven noise
1. input voltage
1. input voltage in the specified scope
2. output current
2. output current under the rated value
28
Sun. Water.
Life.
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