Heater control method | Models for ON/OFF control
(e.g., SSRs or contactors) |
Models for phase control and cyclic control | |
---|---|---|---|
Model | K8AC-H[][]C[]-FLK | K8AC-H[][]P[]-FLK | |
Power supply voltage | 100 to 240 VAC (50/60 Hz) *2 | ||
Operating voltage range | 85% to 110% min. of the rated power supply voltage (85 to 264 V) | ||
Power consumption (at max. load) | 35 VA max. | ||
Applicable circuits | Single-phase or three-phase (with same model) | ||
Applicable control methods | ON/OFF control (e.g., temperature controller with relay output)
SSR control (e.g., temperature controller with voltage output) Cyclic control and phase control (e.g., temperature controller with current output) |
||
Input signal and applicable Current
Transformer |
Current measurement via two special Current Transformers (Burnout alarm set value can be set
separately for each Current Transformer.) Refer to Current Measurement Ranges by Model on Data Sheet for information on the current measurement range and applicable Current Transformer. |
||
Measurement method | Average value calculation | ||
Gate input
signal *1 |
ON/OFF control | Voltage = 12/24 VDC (continuous input possible to
30 VDC) Input impedance = 4 kΩ min. |
--- |
SSR control | ON voltage: 9.6 VDC max., OFF voltage: 1 VDC min.
Minimum voltage pulse ON time for burnout detection: 200 ms min. Input impedance = 4 kΩ min. |
--- | |
Cyclic and phase
control |
--- | 4 to 20 mA DC (Burnout detection is possible for
an input of 7 mA or greater.) Input impedance = 50 Ω max. |
|
Outputs | Relay contact
outputs: K8AC-H[][][]C-FLK |
One SPDT relay contact output
Same output used for heater burnout, SSR short circuit, SSR open circuit, and heater layer short circuit alarms. 0.3 A at 125 VAC (resistive load), 1 A at 30 VDC (resistive load) Maximum switching capacity: 37.5 VA, 30 W Mechanical durability: 50 million operations min., electrical durability: 100,000 operations min. |
|
Transistor outputs
(NPN open- collector): K8AC-H1[][]T-FLK |
Two transistor outputs (NPN open-collector)
One ALM output: Outputs heater burnout alarm or heater layer short circuit alarm. One SSR error output: Outputs SSR short circuit alarm or SSR open circuit alarm. 12 to 24 VDC, 50 mA max. OFF leakage current: 100 μA max., ON residual voltage: 1.5 V max. |
||
Transistor outputs:
K8AC-H2[][]N-FLK |
Two transistor outputs: Can be used either NPN open-collector outputs or PNP equivalent outputs.
One ALM output: Outputs heater burnout alarm or heater layer short circuit alarm. One SSR error output: Outputs SSR short circuit or SSR open circuit detection. 12 to 24 VDC, 50 mA OFF leakage current: 100 μ A max., ON residual voltage: 1.5 V max. |
||
Communications | RS-485 1200, 2400, 4800, 9600, 19200 bps (CompoWay/F) | ||
Indication method | 7-segment digital display: No. of display digits: 4 (red)
LED status indicators: RUN (green), ADJ (orange), SET (orange), GATE (orange), SSR (orange) and ALM (orange) |
||
Main functions | Heater burnout alarm, heater layer short circuit alarm, SSR short circuit detection, SSR open circuit
detection, voltage fluctuation compensation, output ON-delay timer, energy-saving mode, key protection, and power supply voltage measurement |
||
Ambient
temperature |
Operating | - 10 to 55 ° C (with no icing or condensation) | |
Storage | - 25 to 65 ° C (with no icing or condensation) | ||
Ambient
humidity |
Operating | 25% to 85% (with no condensation) | |
Storage | 25% to 85% (with no condensation) | ||
Altitude | 2,000 m max. | ||
Accessories | Instruction sheet | ||
Case material | PC (Polycarbonate) | ||
Case color | N1.5 (clear black) | ||
Mounting method | Mounting to a DIN Track |