IMR01M01-E16
6
5. WIRING
5.1 Wiring of Main Circuit
Always conduct wiring so that the phase of the main circuit (2/T1) coincides with that of terminal No. 4 and the
phase of the main circuit (1/L1), with that of terminal No. 5. Otherwise the instrument may not function properly or
the load may be damaged.
Caution for connecting a transformer to the load side of the instrument
− When a protection function for control of primary side of a transformer is provided:
To conduct control of primary side of a transformer, make sure protection function for control of primary side of a
control is set. Appropriately adjust the soft-start time for in case of secondary side breakdown depending on the
operating condition.
− When a protection function for control of primary side of a transformer is not provided:
If the action of the device is influenced by excessive current (inrush current, current due to flux saturation of
transformer), use a transformer 1.25 T (magnetic flux density) or less.
Make sure soft-start time is appropriately set.
When connecting a transformer to the load side of this product, make sure that the current value of the primary
side of the transformer is equal to or more than the minimum load current of this product. When the current value
of the primary side of the transformer is less than the minimum load current value of this product, connect a
bleeder resistor in parallel with the primary side of the transformer, and allow the current more than the minimum
load current to flow.
Minimum load current: 0.6 A (20 A type) 1 A (30 A type or more)
When control is started on this instrument without connecting a load to the transformer, it may result in heat
generation or failure of the transformer. Control must be always conducted with the load connected.
Caution for connecting a noise filter to the load side of the instrument
When the control of this instrument is started without connecting a load in a configuration where a noise filter is
connected to the load side of the instrument, a large surge may occur to the noise filter and a damage of the
instrument may result. Control must be always conducted with the load connected.
THV-1 conforms to CE marking by using the noise filter.
The noise filter specified: SOSHIN ELECTRIC CO., LTD.
20 A/30 A: LF2030A-NH 60 A: HF2060A-UP 100 A: HF2100A-UP
45 A: HF2050A-UP 80 A: HF2080A-UP
CAUTION
Transformer
Power supply
100 to 240 V AC
2/T1
1/L1
THV-1
2 3 4 5 1
Fast-blow
fuse
Resistance
Load
Power supply
100 to 240 V AC
2/T1
1/L1
THV-1
2 3 4 5 1
Fast-blow
fuse
Load
Noise
filter
Noise filter
Power supply
100 to 240 V AC
LINE LOAD
Load
2/T1 1/L1
THV-1
2 3 4 5 1
Fast-blow
fuse
To prevent electric shock or instrument failure, do not turn on the power until all wiring is completed.
Make sure that the wiring is correct before applying power to the instrument.
!
WARNING
To Next Page
Loading...
