Wiring Connections For Digital I/O Options; Vdc Inputs And Outputs; Line Voltage Outputs; Arm100 Connections - Mettler Toledo IND9D57 Manual De Instrucciones

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For best system performance, instrument power must be connected to a clean, dedicated AC branch
circuit. Avoid running power lines in a conduit that also carries lines to "noisy" AC equipment such
as motors, welders and solenoids.
L is fused with a 3.15 A, 250 VAC slow blow fuse. Once L has been fused, the label is changed to
1A to denote that the circuit is protected.
For best performance, do not add any other AC loads to the Instrument Power.
2.4.3.

Wiring Connections for Digital I/O Options

2.4.3.1.

24 VDC Inputs and Outputs

The unit is supplied with 4 wire terminals allowing for the attachment of the input photoeyes. These
wire terminals are labeled 24V, 0V, I-1, and I-2. The 24V and 0V connections allow for providing
24 VDC power to the photoeyes, and the I-1and I-2 connections are the input signal lines.
For units that have the ExpressCheck or Dynamic Advanced software, a wire terminal is provided to
connect the output for a reject mechanism. This wire terminal will always be labeled REJ.
2.4.3.2.

Line Voltage Outputs

As with units using 24 VDC outputs, units using line voltage outputs that also have the
ExpressCheck or Dynamic Advanced software will be provided with a wire terminal labeled REJ for
connecting the output to control a reject mechanism.
2.4.3.3.

ARM100 Connections

When an optional ARM100 is ordered with the unit, the I/O points will connect directly at the
ARM100 terminals. Refer to the ARM100 Technical Manual for further details.
2.5.

Closing the Enclosure

To ensure that the IND9D57 provides continuous protection against the ingress of moisture and
dust, be sure the following steps are taken:
1. Ensure cord grips are appropriate for the outer diameter of the cable used. If there is too much
2. If a cord grip is not being used, be sure to install a plug to prevent debris from entering the
3. When adding cable entrances, avoid placing them in the top surface of the enclosure.
4. Be sure that the quarter-turn latch is completely engaged when the enclosure door is closed.
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N is for neutral
GND is for the equipment grounding conductor or the protective earth (PE) connection
gap, replace the cord grip with an appropriate grip range.
enclosure.
Whenever possible, the bottom of the enclosure is the preferred location for cable entrances.
Sides are the next best choice.
Watch for field-installed cabling getting caught in the door gasket. This can cause damage to
METTLER TOLEDO IND9D57/Dyn-570 Dynamic Weighing System Installation Manual 2-3