Omron NSH5, Руководство по эксплуатации

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Precautions for Safe Use
4
4 Precautions for Safe Use
• When unpacking the PT and peripheral devices, check that they are not
damaged. Lightly shake the products to confirm that no abnormal sound
is made.
• Use a power supply with the following specifications for the PT, and for
supplying power to the emergency stop switch, enabling switch, function
switches, and station detection.
• For compliance with the EC Directives (Low Voltage Directive), use a
power supply with reinforced insulation. Reinforced insulation refers to
a single insulation method that is capable of providing the same level
of protection against electric shock as double insulation.
• Do not connect the power supply terminals to an AC power source.
• Do not perform a dielectric strength test.
• Insert a 3-A fuse immediately after the secondary output from the pow-
er supply.
• Use a DC power supply with minimal voltage fluctuation.
Rated power supply voltage: 24 VDC (Allowable range: 20.4 to
27.6 VDC), Capacity: 10 W min.
!
WARNING
• Always ensure that personnel in charge properly perform installation, inspection,
and maintenance for the PT. “Personnel in charge” refers to individuals qualified and
responsible for ensuring safety during machine design, installation, operation, main-
tenance, and disposal.
• Ensure that installation and post-installation checks are performed by personnel in
charge who possess a thorough understanding of the machinery to be installed.
• Do not attempt to disassemble, repair, or modify the PT. Doing so may impair the
safety functions.
• Always connect the emergency stop switch and enabling switch to safety circuits.
Serious accidents may occur if a malfunction occurs while the PT is connected to a
PLC or other controller. Do not use the function switches or switches on the touch
panel as input switches that may cause injury or damage property. Install monitor-
ing circuits or other devices in output signals that may result in serious accidents.
Construct the system so that switching of important operations is performed in
devices outside the PT.
• For devices and components connected to the PT that affect safety, use appropriate
products meeting the required safety level and safety category. System safety and
the appropriate safety category must be evaluated for the entire system. Consult a
certified third-party organization to determine the appropriate safety category.
• It is the user’s responsibility to ensure that system safety adheres to relevant stan-
dards.
• Connect the emergency stop switch, and enabling switch on the PT so that they
function according to stop category 0 or 1 described in IEC/EN 60204-1.
• Install or hand-hold the NSH5 when operating it. Do not operate the NSH5 on the
floor or on a tabletop.
• There are two types of switches on the PT, a red one for use as an emergency stop
switch, and a gray one for use as a stop switch. Use each of these for its intended
purpose. When using a PT with a red emergency stop switch, attach the cable from
the system securely so it cannot be easily disconnected. When using a PT with a
gray stop switch in an application where the PT is detached from the system, make
sure that the emergency stop switch and the stop switch can be clearly distin-
guished.