Current Transformer - Omron E5CN Features

■ Current Transformer

(Sold Separately)
Ratings
Dielectric 1,000 VAC for 1 min
strength
Vibration
50 Hz, 98 m/s
resistance
Weight E54-CT1: Approx. 11.5 g, E54-CT3: Approx. 50 g
Accessories Armatures (2)
(E54-CT3 only) Plugs (2)
■ Heater Burnout Alarms and SSR
Failure Detection Alarms
(E5CN Models with Heater Burnout and SSR Failure Detection
Alarms)
Maximum 50 A AC
heater current
± 5% FS ± 1 digit max.
Input current
indication
accuracy
Heater burnout 0.1 to 49.9 A (in units of 0.1 A)
alarm setting 0.0 A: Heater burnout/SSR failure alarm output
range turned OFF.
50.0 A: Heater burnout/SSR failure alarm output
turned ON.
Minimum detection ON time: 190 ms (See note 1.)
SSR failure 0.1 to 49.9 A (in units of 0.1 A)
detection 0.0 A: Heater burnout/SSR failure alarm output
alarm setting turned ON.
range 50.0 A: Heater burnout/SSR failure alarm output
turned OFF.
Minimum detection OFF time: 190 ms (See note 2.)
Note: 1. If the ON time of control output 1 is less than 190 ms, heater
burnout detection and the heater current will not be
measured.
2. If the OFF time of control output 1 is less than 190 ms, SSR
failure detection and the heater current will not be
measured.
■ Electrical Life Expectancy
Curve for Relays
(Reference Values)
500
300
100
50
30
10
5
E5CN
250 VAC, 30 VDC
3
(resistive load)
cosφ = 1
1
0 1 2
Note: Do not connect a DC load to a Controller with a Long-life Relay
Output.
2
3 4 5 6
Switching current (A)
Digital Temperature Controllers
E54-CT1
Thru-current (Io) vs. Output Voltage
(Eo) (Reference Values)
Maximum continuous heater current: 50 A (50/60 Hz)
Number of windings: 400±2
Winding resistance: 18±2 Ω
100 V
50 Hz
∞
10
1 kΩ
1
100 mV
10
1
100 µV
10
1 10 100 mA
Thru-current (Io) A (r.m.s.)
E54-CT3
Thru-current (Io) vs. Output Voltage
(Eo) (Reference Values)
Maximum continuous heater current: 120 A (50/60 Hz)
(Maximum continuous heater current for an OMRON Temperature
Controller is 50 A.)
Number of windings: 400±2
Winding resistance: 8±0.8 Ω
100 V
50 Hz
∞
10
1 kΩ
500 Ω
1
100 mV
10
1
100 µV
10
1 10 100 mA
Thru-current (Io) A (r.m.s.)
E5CN/E5CN-U
Distortion
factor 10%
3%
1%
100 Ω
RL = 10 Ω
1 10 100 1,000 A
Distortion
factor 10%
3%
1%
100 Ω
50 Ω
10 Ω
R
L =
1 10 100 1,000 A
9