hpmont HD5L-PLUS Series User Manual

Chapter 8 Troubleshooting and Maintenance Shenzhen Hpmont Technology Co., Ltd.
92 HD5L-PLUS Series User Manual V1.0
Periodical Maintenance
Customer should check HD5L-PLUS in every 3 to 6 months according to the actual environment so as
to avoid hidden problems and make sure HD5L-PLUS runs well for a long time.
General inspection:
• Check whether the screws of control terminals are loose. If so, tighten them with a screw driver;
• Check whether the power terminals are properly connected; Whether the copper bar and cables are
overheated;
• Check whether the power cables and control cables are damaged, check especially for any wear on
the cable tube;
• The insulation wrapping tapes of the power cables and control cables are not peeled off or broken;
• Clean the dust on PCBs and air ducts with a vacuum cleaner.
Note:
1. Dielectric strength test of the controller has already been conducted in the factory. Do not do the test
again. Otherwise, the controller might be damaged.
2. If insulation test to the motor is necessary, it should be done after the input terminals U/V/W of motor
have been detached from HD5L-PLUS. Otherwise, HD5L-PLUS will be damaged.
3. For controllers that have been stored for a long time, they must be powered up every 2 years. When
supplying AC power to the controller, use a voltage regulator to gradually raise the input voltage to rated
input voltage at least 5 hours.
Replacing Damaged Parts
The components that are easily damaged: Cooling fan and electrolytic capacitors of filters.
Their lifetime depends largely on their application environment and preservation. Users can decide the
time when the components should be replaced according to their service time.
Easily Damaged Cooling fan Electrolytic capacitors
Life 60,000 hours 50,000 hours
Possible Cause of
Damages
Wear of the bearing, aging of the fan vanes
High ambient temperature, aging of
electrolyte and large pulse current induced by
rapid changing loads
Criteria
After the controller is switched off, check if the
abnormal conditions such as crack existing on
fan vanes and other parts. When the controller
is switched on, check if controller running is
normal, and check if there is any abnormal
oscillation
Check if frequent overcurrent or overvoltage
failures occur during controller start-up with
load. Check if there is any leakage of liquids.
Check if the safety valve protrudes. Measure
the static capacitance and insulation
resistance
Unwanted Controller Recycling
When disposing HD5L-PLUS, pay attention to the following factors:
• The capacitors may explode if they are burnt.
• Poisonous gas may be generated when the plastic parts like front covers are burnt.
• Disposing method: Dispose unwanted controllers as industrial waste.

hpmont HD5L-PLUS Series Specifications

General

Brand	hpmont
Model	HD5L-PLUS Series
Category	Controller
Language	English