User Manual

Wiring Terminals Section 2-2

measures to prevent excessive temperature rise and spreading of fire.

Take countermeasures such as installing a surge absorber. As an addi-

tional safety measure, provide error detection in the control loop. (Use the

Loop Break Alarm (LBA) and HS alarm that are provided for the E5@N.)

Select a surge absorber that satisfies the following conditions.

Control Output 2 • Outputs are sent from terminals 11, 12, 14, and 15 with the E5CN, and

from pins 14 and 15 with the E5AN/EN. The following diagrams show the

available outputs and their internal equalizing circuits.

• The following table shows the specifications for each output type.

E5CN/CN-U

E5AN/EN

• Always connect an AC load to a long-life relay output. The output will not

turn OFF if a DC load is connected.

• A voltage output (control output) is not electrically isolated from the inter-

nal circuits. Therefore, when using a grounding thermocouple, do not con-

nect any of the control output terminals to the ground. If control output

terminals are connected to the ground, errors will occur in the measured

temperature values as a result of leakage current. With E5AN/EN, how-

ever, voltage output (control output 2) is functionally isolated from the

internal circuits.

• The control output 2 of E5CN is a voltage output only, and outputs across

terminals 11(+) and 12(-), or 14(+) and 15(-).

• Control outputs 1 and 2 (voltage outputs) are not isolated.

Voltage used Varistor voltage Surge resistance

100 to 120 VAC 240 to 270 V 1,000 A min.

200 to 240 VAC 440 to 470 V

Long-life

relay output

Varistor

Inductive

load

Output type Specifications

Voltage (PNP) PNP type, 12 VDC ±15%, 21 mA (with short-circuit protec-

tion)

Output type Specifications

Long-life relay 250 VAC, 3 A (resistive load), electrical durability: 1,000,000

operations

Voltage (PNP) PNP type, 12 VDC +15%/−20%, 21 mA (with short-circuit

protection)

E5AN/EN

Relay Voltage

GND

Voltage Voltage

E5CN

GND