User manual

36
4 - CONNECTIONS
4.3.1 Description of Power Terminals
Figures 9 – 12 show the power terminals for the RSi S4 drives.
Description of RSi S4 Power Terminals
4.3.2 Typical Power Connections & Fuse Ratings
See section 4.2 starting on page 33 for input line requirements.
Note that when testing for a ground fault, do not short any motor lead (T1/U, T2/V, or T3/W) back to an
input phase (L1/R, L2/S, or L3/T).
It is necessary to provide fuses and a disconnect switch for the input AC line in accordance with all
applicable electrical codes. The S4 AC drive is able to withstand a 150% overload for 60 seconds for heavy
duty rating, and 120% overload for standard duty rating.
The fusing and input protection of the drive must always meet UL, NEC (National Electric Code) or CEC
(Canadian Electric Code) requirements. All fuse ratings listed in the table below are for reference only
and do not supersede code requirements. The recommended supplier is Bussman or (Shawmut).
Terminal Description
GND Earth ground.
L1\R
L2/S
L3/T
These terminals are the line connections for three-phase models. (Single-phase models will only have
theL1\R terminal, with the other two terminals being replaced by a terminal labeled N.)
B-/B+
The B- and B+ terminals (depending on the model) provide a connection to the DC Bus. They may be used
for common DC Bus connections or for powering the drive from a DC source. Alternately, by connecting a
Benshaw dynamic brake unit to these terminals, braking capacity may be enhanced.
DB/B+
The DB and B+ terminals (depending on the model) are the connection points for the dynamic brake resistor.
The internal resistor must be disconnected if an external resistor is used for dynamic braking.
see page 39 for more information.
T1/U
T2/V
T3/W
These terminals are for motor connections.
Model Number
Fuse Size
115 Vac
JJS/JJN
(A6T/A3T)
Fuse Size
208 Vac
JJS/JJN
(A6T/A3T)
Fuse Size
230 Vac
JJS/JJN
(A6T/A3T)
Fuse Size
380 Vac
JJS
(A6T)
Fuse Size
460 Vac
JJS
(A6T)
Fuse Size
600 Vac
JJS
(A6T)
RSi001S415W 20 – – – – –
RSi001S42W – 10 6 – – –
RSi002S42W – 15 10 – – –
RSi003S42W – 20 15 – – –
RSi005S42W – 30 25 – – –
RSi007S42W – 40 35 – – –
RSi010S42W – 50 40 – – –
RSi015S42W – 70 60 – – –
RSi020S42W 90 80
RSi025S42W – 100 90 –