Omron E5CN User Manual

xxi
Conventions Used in This Manual
Meanings of Abbreviations
The following abbreviations are used in parameter names, figures and in text explanations. These
abbreviations mean the following:
Note: (1) A heater short indicates that the heater remains ON even when the control output from the Tempera-
ture Controller is OFF because the SSR has failed or for any other reason.
(2) “EU” stands for Engineering Unit. EU is used as the minimum unit for engineering units such as
°C,
m, and g. The size of EU varies according to the input type.
For example, when the input temperature setting range is –200 to +1300
°C, 1 EU is 1°C, and when
the input temperature setting range is –20.0 to +500.0
°C, 1 EU is 0.1°C.
For analog inputs, the size of EU varies according to the decimal point position of the scaling setting,
and 1 EU becomes the minimum scaling unit.
Symbol Term
PV Process value
SP Set point
SV Set value
AT Aut o -tu ni ng
ST Self-tuning
HB Heater burnout
HS Heater short (See note 1.)
OC Heater overcurrent
LBA Loop burnout alarm
EU Engineering unit (See note 2.)

Omron E5CN Specifications

General

Communication	RS-485 (optional)
Mounting	Panel Mount
Control Method	ON/OFF
Input Type	Thermocouple, RTD
Supply Voltage	100 to 240 VAC
Output Type	Relay, Voltage (for driving SSR), Current
Display Type	7-segment LED
Size	48 x 48 mm
Control Output	Relay, Voltage (for driving SSR), Current
Alarm Output	1 or 2 outputs
Dimensions	48 x 48 x 78 mm
Ambient Operating Temperature	-10 to 55°C
Protection Rating	IP66