15
Chapter 2 Installation
Dangerous voltage capable of causing death can be pres-
ent in this instrument. Before installation or beginning
any troubleshooting procedures, the power to all equipment must
be switched off and isolated. Units suspected of being faulty
must be disconnected and removed to a properly equipped work-
shop for testing and repair. Component replacement and internal
adjustments must be made by a qualified maintenance person
only.
To minimize the possibility of fire or shock hazards, do
not expose this instrument to rain or excessive moisture.
Do not use this instrument in areas under hazardous con-
ditions such as excessive shock, vibration, dirt, moisture,
corrosive gases, or oil. The ambient temperature of the areas
should not exceed the maximum rating specified in chapter 8.
2–1 Unpacking
Upon receipt of the shipment, remove the unit from the carton
and inspect the unit for shipping damage.
If there is any damage due to transit, report the damage and file
a claim with the carrier.
Write down the model number, serial number, and date code for
future reference when corresponding with our service center.
The serial number (S/N) is labeled on the box and the housing of
the controller .
2–2 Mounting
Make the panel cutout to fit the dimensions shown in figure 2.1.
Remove both mounting clamps and insert the controller into the
panel cutout. Reinstall the mounting clamps. Gently tighten the
screws in the clamp until the controller front panel fits snugly in
the cutout .
2–3 Wiring Precautions
• Before wiring, verify the correct model number and options on
the label. Switch off the power while checking.
• Care must be taken to ensure that the maximum voltage rating
specified on the label is not exceeded.
• It is recommended that the power for these units be protected
by fuses or circuit breakers rated at the minimum value possi-
ble.
• All units should be installed in a suitable enclosure to prevent
live parts from being accessible to human hands and metal
tools. Metal enclosures and/or subpanels should be grounded in
accordance with national and local codes.
• All wiring must conform to appropriate standards of good prac-
tice and local codes and regulations. Wiring must be suitable
for the voltage, current, and temperature rating of the system.
• Beware not to over-tighten the terminal screws. The torque
should not exceed 1 N-m (8.9 lb-in or 10 KgF-cm).
• Unused control terminals should not be used as jumper points
as they may be internally connected, causing damage to the
unit.
• Verify that the ratings of the output devices and the inputs as
specified are not exceeded.
• Except for thermocouple wiring, all wiring should use stranded
copper conductor with a maximum gage of 14 AWG.
• Electrical power in industrial environments contains a certain
amount of noise in the form of transient voltage and spikes.
This electrical noise can adversely affect the operation of
microprocessor-based controls. For this reason the use of
shielded thermocouple extension wire which connects the sen-
sor to the controller is strongly recommended. This wire is a
twisted-pair construction with foil wrap and drain wire. The
drain wire is to be attached to ground in the control panel only.
Figure 2.1 Mounting Dimensions
Figure 2.2 Lead Termination
Figure 2.3 Rear Terminal Connection Diagram
4.5 ~ 7.0 mm
0.18" ~ 0.27"
2.0 mm
0.08" max.
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