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Safety Precautions
Loose screws may occasionally result in fire.
Tighten the terminal screws to the specified torque of 0.43 to
0.58 N·m.
Set the parameters of the product so that they are suitable for the
system being controlled. If they are not suitable, unexpected
operation may occasionally result in property damage or accidents.
A malfunction in the Digital Controller may occasionally make control
operations impossible or prevent alarm outputs, resulting in property
damage. To maintain safety in the event of malfunction of the Digital
Controller, take appropriate safety measures, such as installing a
monitoring device on a separate line.
CAUTION - Risk of Fire and Electric Shock
(a) This product is UL listed as Open Type Process Control
Equipment. It must be mounted in an enclosure that does not
allow fire to escape externally.
(b) More than one disconnect switch may be required to
de-energize the equipment before servicing.
(c) Signal inputs are SELV, limited energy.
(d) Caution: To reduce the risk of fire or electric shock, do not
interconnect the outputs of different Class 2 circuits.
*1 An SELV (separated extra-low voltage) system is one with a power supply that has double or reinforced
insulation between the primary and the secondary circuits and has an output voltage of 30 V r.m.s. max.
and 42.4 V peak max. or 60 VDC max.
*2 A class 2 circuit is one tested and certified by UL as having the current and voltage of the secondary output
restricted to specific levels.
6
CAUTION
Safety Standards
*1
*2
E5@D Digital Temperature Controllers User's Manual (H224)
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