Delta IED-S Series, Руководство пользователя

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Chapter 5 Control Terminals | IED-S
5-3
5-1-1 Control Circuit Terminals
Terminal Socket Wire Gauge Torque
TB1/TB2/TB3/
TB4/TB5/TB8
0.13–1.5 mm² [26–16 AWG] 2 kg-cm [1.74 lb-in.] (0.20 Nm)
TB6/TB7/TB9 0.13–2.5 mm² [26–14 AWG] 4.9 kg-cm [4.25 lb-in.] (0.50 Nm)
For UL installation compliance, use copper wires with rated voltage of 600 V and temperature resistance of 75°C or
90°C for wiring.
Wiring precautions:
 Arrange the wires to go through the wiring holes and tighten them with a slotted screwdriver. The
ideal length of wire reserved at the connection side is 5 mm. Use wires without terminal block and
ensure the wires are perfectly arranged to go through the wiring holes.
 Slotted screwdriver specification: 3.5 mm width and 0.6 mm thickness
Analog Input Terminals (AI, ACM)
 Analog input signals are easily affected by external noise. Use shielded wiring and keep it as short
as possible (less than 20 m) with proper grounding. If the noise is inductive, connecting the shield to
the ACM terminal can reduce interference.
 Use twisted-pair wire for weak analog signals. If the analog input signals are affected by noise from
the AC motor drive, connect a capacitor and a ferrite core as shown in the figure below.
Contact Input Terminals
 When using contacts or switches to control the input terminals, use high quality components to
prevent contact bounce.
Output Terminals
 Connect the digital outputs to the correct polarity.
 When connecting a relay to the digital outputs, connect a surge absorber across the coil and check
the polarity.