Chapter 10 Daily Maintenance
ACH200 Series High Voltage Variable Frequency Speed Control System Operating Manua
139
Chapter 10 Daily Maintenance
10.1 Daily Maintenance and Inspection
Caution
Inspection must be carried out by professional technicians, if necessary, the power of the AC
drive should be cut off first
ACH200 high-voltage AC drive speed control system has the characteristics of high reliability
and maintenance-free electrical system, but in daily use, influenced by ambient temperature,
humidity, dust, vibration and aging of internal components of the AC drive, some potential problems
may occur during the operation of the AC drive. In order for the AC drive to operate in a long-term
and stable manner, a regular inspection must be conducted every 3 ~ 6 months. The inspection
content is shown in the following table:
Frequency of
inspection
Inspection
items
Inspection content
Discriminatory criteria
Daily
Regular
√
Operating
Environment
1.Temperature,
humidity
2.Dust, gas
1. Open the AC drive cover for
temperatures > 40°C
Humidity < 90% without frost
2. No odor, no flammable or
explosive gases.
2. No odour, no flammable or
explosive gases
√
Cooling
System
1. Installation
environment
2. AC drive body fan
1. The installation environment is
well ventilated and the air
ducts are not blocked
2. Normal operation of the body
fan, no abnormal noise
√
AC drive body
1. Vibration,
temperature rise
2. Noise
3. Wires, terminals
1. Smooth vibration, normal air
temperature at the outlet
2. No abnormal noise, no odor
3. No loose fastening screws
