User Manual

24
Wiring Terminals Section 2-2
• 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. When using a grounding thermocouple, do not connect 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.
• Control outputs 1 and 2 (voltage outputs) are not isolated. For E5AN/EN,
however, the voltage output (control output 2) is isolated.
• Long-life relay outputs use semiconductors for switching when closing
and opening the circuit, thereby reducing chattering and arcing and
improving durability. However, if high levels of noise or surge are imposed
between the output terminals, short-circuit faults may occasionally occur.
If the output becomes permanently shorted, there is the danger of fire due
to overheating of the heater. Design safety into the system, including
Output type Specifications
Relay 250 VAC, 3 A (resistive load), electrical durability: 100,000
operations
Long-life relay 250 VAC, 3 A (resistive load), electrical durability: 1,000,000
operations
Voltage (PNP) PNP type, 12 VDC ±15%, 21 mA (with short-circuit protec-
tion)
Current DC 4 to 20 mA/DC 0 to 20 mA, resistive load: 600 Ω max.
Resolution: Approx. 2,700
Output type Specifications
Relay 250 VAC, 5 A (resistive load), electrical durability: 100,000
operations
Voltage (PNP) PNP type, 12 VDC +15%/−20%, 40 mA (with short-circuit
protection)
Current DC 4 to 20 mA/DC 0 to 20 mA, resistive load: 600 Ω max.
Resolution: Approx. 2,700
E5CN E5CN-U
1
2
1
2
L
+
−
6
5
4 4
6
5
+
−
GND
GND
L
+V
+V
+
−
−
1
2
+
+V
L
Relay Voltage Current Relay Voltage
+
v
L
+
−
L
+
v
+
−
E5AN/EN
Relay Voltage Current
GND