Heater Element Burnout Detector K2CU CSM K2CU DS E 3 2 Accurate Detection of Heater Element Burnout Regardless of Heater Capacities Accurately detects a burned heater element or elements incor- porated by a molding machine or packing machine and outputs an alarm signal. Precisely singles out the burned element even if one heater el- ement among several heater elements has been burned out. Applicable to small- to large-capacity heater elements. All K2CU-F large-capacity, built-in current transformer models work with both single-phase and three-phase heaters. Voltage fluctuation compensation function eliminates false alarms due to variations in the supply voltage. Model Number Structure Model Number Legend K2CU- - 12 3 4 5 6 1. Heater Element Burnout Detector 4. Voltage Compensation 2. Operation None: Not provided F: Large-capacity, built-in Current Transformer model A: Provided P: Small-capacity plug-in model 5. Control Power Supply Voltage 3. Operating Current Range A: 100/200 VAC 0.5: 0.25 to 0.5 A B: 110/220 VAC 1: 0.5 to 1 A C: 100 VAC 2: 1 to 2 A D: 110 VAC 4: 2 to 4 A E: 200 VAC 10: 4 to 10 A F: 220 VAC 20: 8 to 20 A 6. Gate Input 40: 16 to 40 A None: Not provided 80: 32 to 80 A GS: Provided Ordering Information K2CU-F A- GS Model with Gate Input Terminals Control supply voltage Operating current 4 to 10 A 8 to 20 A 16 to 40 A 32 to 80 A 100 VAC With voltage fluctuation compensation K2CU-F10A-CGS K2CU-F20A-CGS K2CU-F40A-CGS K2CU-F80A-CGS 110 VAC K2CU-F10A-DGS K2CU-F20A-DGS K2CU-F40A-DGS K2CU-F80A-DGS 200 VAC K2CU-F10A-EGS K2CU-F20A-EGS K2CU-F40A-EGS K2CU-F80A-EGS 220 VAC K2CU-F10A-FGS K2CU-F20A-FGS K2CU-F40A-FGS K2CU-F80A-FGS Note: A model with a gate input terminal is required to combine the K2CU with a temperature controller that uses PID control for temperature control of a heater. To do so, use a temperature controller with a voltage output. 1K2CU K2CU-F Large-capacity, Built-in Current Transformer Models Control supply voltage Operating current 4 to 10 A 8 to 20 A 16 to 40 A 32 to 80 A 100 VAC With voltage fluctuation compensation K2CU-F10A-C K2CU-F20A-C K2CU-F40A-C K2CU-F80A-C 110 VAC K2CU-F10A-D K2CU-F20A-D K2CU-F40A-D K2CU-F80A-D 200 VAC K2CU-F10A-E K2CU-F20A-E K2CU-F40A-E K2CU-F80A-E 220 VAC K2CU-F10A-F K2CU-F20A-F K2CU-F40A-F K2CU-F80A-F K2CU-P Small-capacity, Plug-in Models Control supply voltage Operating current 0.25 to 0.5 A 0.5 to 1 A 1 to 2 A 2 to 4 A 100/ With voltage fluctuation compensation K2CU-P0.5A-A K2CU-P1A-A K2CU-P2A-A K2CU-P4A-A 200 VAC Without voltage fluctuation compensation --- K2CU-P1-A K2CU-P2-A K2CU-P4-A 110/ With voltage fluctuation compensation K2CU-P0.5A-B K2CU-P1A-B K2CU-P2A-B K2CU-P4A-B 220 VAC Without voltage fluctuation compensation --- K2CU-P1-B K2CU-P2-B K2CU-P4-B Specifications Ratings Item K2CU-F K2CU-P Control supply voltage 100, 110, 200, 220 VAC 100/200, 110/220 VAC Rated frequency 50/60 Hz Carry current 1.25 times as large as each models maximum operating cur- 2.5 A for K2CU-P0.5A-A/-B rent 5 A Operating voltage range 85% to 110% of control supply voltage Voltage fluctuation compensation 85% to 110% of control supply voltage 85% to 110% of control supply voltage (applicable only on range models with voltage fluctuation compensation) Operating current 4 to 10 A, 8 to 20 A, 16 to 40 A, 32 to 80 A (continuously vari- 0.25 to 0.5 A, 0.5 to 1 A, 1 to 2 A, 2 to 4 A (continuously vari- able) able) Releasing current 105% max. of operating current 110% max. of operating current Operate time 0.5 s max. (when current changes from 150% to 0%) Gate input voltage range (for models 5 to 30 VDC --- with gate input terminals) Control output 2 A at 220 VAC, SPDT (cos = 0.4) Power consumption Input: 0.5 VA max. Input: 1 VA max. Power supply: 5 VA max. Power supply: 4 VA max. Characteristics Setting accuracy 7% max. Repeat accuracy 3% max. Influence of temperature 10% max. (at 20C30C) Influence of voltage Models without voltage fluctuation compensation: 3% max. of the value measured at the control supply voltage, on condition that the voltage fluctuation is 85% to 110% of the control supply voltage Models with voltage fluctuation compensation: 5% max. of the logical value, on condition that the voltage fluctuation is 85% to 110% of the control supply voltage. (see note) Influence of frequency 3% max. (at 5% of rated frequency) Insulation resistance 10 M min. (at 500 VDC) between electric circuits and mounting panel Dielectric strength 2,000 VAC, 50/60 Hz for 1 min between electric circuits and mounting panel Overcurrent 20 times of max. set value of operating current for 2 s Vibration resistance Destruction: 16.7 Hz, 1-mm double amplitude for 10 min each in X, Y, and Z directions 2 Shock resistance Destruction: 98 m/s (approx. 10G) Ambient temperature Operating: 10C to 55C (with no icing) Ambient humidity Operating: 45% to 85% Weight K2CU-F: approx. 390 g K2CU-P: approx. 300 g Note: The logical value is an operating value within a range of 0.85 to 1.1 with a voltage fluctuation of 85% to 110%, based on the value at the control supply voltage measured as 1. 2