2.5 Output and System Cable Connection
DP Series/DP Series Type R
31
3.
Connect the output terminal to the load with a cable. Connect a voltage line to the Hi output
terminal of each cabinet. The neutral line can be connected to the Lo terminal with two methods
described below. The neutral line can be grounded. If the load has a ground terminal, connect it
to the chassis terminal of each output terminal. Be sure to tighten the screws firmly.
(a) When connecting the load with the neutral line (single-phase three-wire or three-phase
four-wire connection)
Connect the neutral point of load with the Lo terminal of each cabinet using cables with
same length and diameter as the voltage line. Alternatively, connect between the Lo
terminals of each cabinet by a cable which is as short as possible and has a diameter equal
to or more than that of the voltage line, and then connect one of the Lo terminals with the
neutral point of load by a cable with same length and diameter as the voltage line.
(b) When not connecting the load with the neutral line (three-phase three-wire connection),
Connect between the Lo terminals of each cabinet by a cable which is as short and thick as
possible (with a diameter equal to or more than that of the voltage line).
The terminal which can be grounded is the Lo terminal of each cabinet. Do not ground the Hi
terminal (L1, L2, and L3 voltage lines).
L3L2L1
OUTPUT
Hi Lo
OUTPUT
Hi Lo
OUTPUT
Hi Lo
L1 L2 L3 N
a 4
Load
(Cabinet ground terminal)
(a)Three-phase four-wire connection
CAUTION
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