9410 series
Hardware reference
•
Inspect the gasket (installed around the perimeter of the display) and make sure it
is secured properly and not damaged.
•
The meter retainer clips, located on either side of the meter base and used to
secure the meter in the panel, do not usually require any tools to install. If
necessary, for panels with limited space, you can use a long-handled slot
screwdriver to help install the meter retainer clips.
•
The remote display can only be used with the DIN meter; it cannot be used by
meters with an integrated display.
•
The remote display’s power and communications is provided through a single,
direct, point-to-point connection from the remote display to the DIN meter.
Power system wiring
You can connect the meter’s voltage inputs directly to the phase voltage lines of the
power system if the power system’s line-to-line or line-to-neutral voltages do not
exceed the meter’s direct connect maximum voltage limits.
The maximum voltage allowed for direct connection may be lower than the
manufacturer-specified limits, depending on the local electrical codes and regulations.
If your system voltage is greater than the specified direct connect maximum voltage,
you must use voltage (potential) transformers (VTs/PTs) to step down the voltages.
RS-485 wiring
Connect the devices on the RS-485 bus in a point-to-point configuration, with the (+)
and (-) terminals from one device connected to the corresponding (+) and (-) terminals
on the next device.
RS-485 cable
Use a shielded 2 twisted pair or 1.5 twisted pair RS-485 cable to wire the devices. Use
one twisted pair to connect the (+) and (-) terminals, and use the other insulated wire to
connect the C terminals
The total distance for devices connected on an RS-485 bus should not exceed 1200 m
(4000 ft).
RS-485 terminals
C
Common. This provides the voltage reference (zero volts) for the data plus and data minus
signals
Shield. Connect the bare wire to this terminal to help suppress signal noise that may be present.
Ground the shield wiring at one end only (either at the master or the last slave device, but not
both.
-
Data minus. This transmits/receives the inverting data signals.
+
Data plus. This transmits/receives the non-inverting data signals.
NOTE:
If some devices in your RS-485 network do not have the C terminal, use the
bare wire in the RS-485 cable to connect the C terminal from the meter to the shield
terminal on the devices that do not have the C terminal.
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7EN05-0336-01