Panasonic S-22ML1E5, Service Manual & Test Run Service Manual

Page: 18 / 175

Mini VRF SYSTEM
Control Functions - Outdoor unit
1 - 8
1
2. Compressor Control
Current protection
This restriction protects the compressor and controls the compressor electric current simultaneously.
The current limitation value changes to “normal status” and “overload status” according to the outdoor
temperature.
The primary and secondary current values of the inverter compressors are measured.
3
U-4LE2E5, U-5LE2E5, U-6LE2E5
unit: Ampere
Type of outdoor unit 4HP 5HP 6HP
Primary
Limit current 1 32.2 32.2 32.2
Maximum current 1 H 25.0 25.0 28.0
Maximum current 1 L 24.0 24.0 27.0
* Normally, maximum current is limited in demand control shown on page 1-26.
Type of outdoor unit 4HP 5HP 6HP
Secondary
Limit current 2 24.5 24.5 24.5
Maximum current 2 H 21.0 21.0 21.0
Maximum current 2 L 20.0 20.0 20.0
Stop If this current is detected at regular intervals, alarm appears.
Limit current 1, 2
Frequency of inverter compressor goes down.
Max. current 1H, 2H
Frequency of inverter compressor cannot increase.
Max. current 1L, 2L
Frequency of inverter compressor can increase.
Inverter layout
Power
supply
Noise filter
L
N
Primary CT1
Diode
bridge
IPM
(CM1)
Compressor
Fan motor
Secondary CT
Reactor
Fuse Fuse
Fuse
SM830258-01_欧州向け_1fan_mini_VRF.indb 8 18/03/06 9:09:48