K2CU-F20A-C AC8-20A AC100 Omron, K2CU-F20A-C AC8-20A AC100 Datasheet - Page 6

• Manufacturer Part Number: K2CU-F20A-C AC8-20A AC100
• Description: HEATER FAULT DETECTOR
• Manufacturer: Omron
• Series: K2CUr

Specifications of K2CU-F20A-C AC8-20A AC100

• Current Rating: 8.0 ~ 20 A
• Mounting Type: Panel
• Operational Type: Large, Built in Transformer
• Voltage - Supply: 100 VAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Gate Input: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: K2CU-F20A-CAC8-20AAC100; K2CUF20ACAC820AAC100

K2CU
K2CU-F
The operation of the heater burnout detector can be easily checked
as follows:
In a Single-phase Circuit
Set the operating current to be 0.6 to 0.55 times the heater current.
Close the SW
indicator remains off.
Turn off SW
the output relay operates.
In a Three-phase, Delta Network
Set the operating current to be 0.6 times the heater current.
Close the SW
the alarm indicator remains off.
Turn off SW
the output relay operates.
Turn on SW
rent, and confirm that the alarm indicator goes off and the output
relay releases.
Turn off SW
the output relay operates.
6
Operation Check
1
2
1
1
and confirm that the alarm indicator comes on, and that
and confirm that the alarm indicator comes on, and that
set the operating current to be 0.9 times the heater cur-
and confirm that the alarm indicator comes on, and that
3
2
with switches SW
A- GS
with switch SW
K2CU-F
G+
G–
G+
G–
S1
S2
S1
S2
SW
1
SSR
SW
Heater
SSR
2
1
1
Heater
turned on. Confirm that the alarm
and SW
K2CU-F
SW
2
1
turned on. Confirm that
SW
SW
2
3
In a Three-phase, Star Network
Set the operating current to be 0.9 times the heater current.
Close the SW
indicator remains off.
Turn off SW
the output relay operates.
1
and confirm that the alarm indicator comes on, and that
2
with switch SW
G+
G–
S1
S2
SW
1
Heater
SSR
1
turned on. Confirm that the alarm
K2CU-F
SW
K2CU
2