Delta REG2000 Series, Руководство пользователя

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04 Wiring | REG2000
4-15
NOTE
 Use Figure 1 to choose terminal wire size.
 As shown in Figure 2, use insulated heat shrink tubing that is resistant to at least 600 V
AC
to comply
with UL and CSA regulations (600 V
AC
, YDPU2).
Main circuit power input terminals
 Do not connect a three-phase model to single-phase power. R/L1, S/L2 and T/L3
have no phase-sequence requirement.
 Normally, based on local regulations, installing a non-fuse breaker as system
protection on the connection between three-phase input power and main circuit
terminal (R/L1, S/L2 and T/L3) is required. However, it is recommended to add a
magnetic contactor (MC) to the power input wiring to cut off power quickly and
reduce malfunction when activating the Power Regeneration Unit protection
function. (Both ends of the MC should have an R-C surge absorber to prevent
abnormal voltage surge caused by sudden current breakdown, further causing
flashover to damage the equipment.)
 Tighten the screws in the main circuit terminal to prevent sparks caused by screws
loosened by vibration.
 Use specified voltage and current and pay attention to the maximum allowance.
 When using a general GFCI (Ground Fault Circuit Interrupter), select a current
sensor with sensitivity of 200 mA or above and not less than 0.1-second operation
time to avoid nuisance tripping.
 Use shielded wire or conduit for the power wiring and ground the two ends of the
shielded wire or conduit.