Yaskawa Varispeed-656 DC5 Converter - Manual (Page 10)

VS-656DC5 User’s Manual
8 - 20
4. Description of External Terminals
Explanation of main circuit terminals
Terminal Sign Description
Converter
Main Circuit
Input (R1, S1, T1)
(R2, S2, T2)
(R3, S3, T3)
(R4, S4, T4) • Main AC power input terminals for converter
The number of terminals increases in proportion to the num-
ber of parallel converter modules. Each main power terminal
(R1, S1, T1) (R2, S2, T2) (R3, S3, T3) must be connected to a
dedicated input reactor.
Converter
Main Circuit
Output P, N • Main DC voltage output terminals for converter
These are the terminals supplying the DC load voltage to the
inverter unit.
Supply Voltage
Detection r1, s1, t1 Detects the supply voltage phasing and level.
This must be connected to the power source applied to the pri-
mary of the input reactors so that the phasing is the same as the
power source. (i.e. So that r1 corresponds with R1, s1 corre-
sponds with S1, and t1 corresponds with T1.)
Control Power
Input r, s200, s400 This is the terminal providing power for the converter control
power, cooling fan, and soft charge circuit (MC).
Connect between r, s200 for 200V-class single-phase power, and
between r, s400 for 400V-class single-phase power. It may also
be necessary to set the transformer tap of the internal power sup-
ply unit on the converter according to the supplied voltage.
Converter
Enclosure
Cooling Fan
Power r100, s100 These are the input power terminals for the ceiling cooling fan on
the converter enclosure. Requires 100VAC. Current capacity dif-
fers with the type and number of fans used.
Converter
Cooling fin
Error Contact
Output F1, F2 This is the error contact output for the ceiling cooling fin on the
converter enclosure. Contact capacity is 250V at 1 Amp.