Analogue power controllers Type ACI
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Analogue power controllers Type ACI |
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Features
| SCR power chip with LTE technology | Micro-computer controlled for maximum performance |
| Compact modular design complete with heat sink | Built in EMC filter |
| DIN-rail mountable | LED status indicator |
| Buit-in varistor protection | Problem-free specification according to industry standard |
| Accepts current loop, voltage and potentiometer control inputs | IP 20 protection |
| Selectable phase angle and burst firing control method | Easy and quick installation |
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| General / Type | ACI 30-1 | ACI 50-1 |
| Product description | The versatile ACI analogue power controller is designed for very precise temperature and transformer control. Due to the built-in micro-computer the controller can operate in phase angle as well as in burst firing control method. The controller automatically adapts to the load to ensure a smooth inrush, and in burst-firing mode it will further eliminate the unwanted effects of DC magnetizing on transformers. The ACI unit is easily connected to a PLC/regulator by means of one of the selectable input signals. |
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| Typical applications | Analogue control of heaters and infrared lamps. The ACI controller is also ideal on transformer controlled processes |
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| Design standard | IEC/EN 60947-4-3 |
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| Approvals | CE |
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| Output Specifications Operational current |
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| AC-1 ( heater load ) | 30 A | 50 A |
| AC-56a ( transformer load ) | 30 A | 50 A |
| Operational Voltage, 3 phase | 24-230 V a.c. 24-480 V a.c. |
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| Control method Phase angle control Burst firing control |
Selectable linear power or linear voltage Selectable cycle time: 0.4 - 60 seconds |
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| Leakage current max. | 1 mA |
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| Minimum operational current | 10 mA |
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Semiconductor protection fusing |
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| type 1 co-ordination | 50 A gL/gG | 50 gL/gG |
| type 2 co-ordination | 1800 A2S1 | 1800 A2S |
Thermal specifications and environment |
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| Power dissipation, continuous duty | 1.2 W/A |
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| Power dissipation, intermitent duty | 1.2 W/A x duty cycle |
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| Ambient temperature range | -5 to 40 oC |
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| Cooling method | Natural convection |
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| Mounting | Vertical ( see also general mounting instructions ) |
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| Max. ambient temperature with limited current | 60 oC |
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| Storage temperature range | -20 to 80 oC |
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| Protection/pollution degree | IP 20/3 |
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| Insulation specification | ||
| Rated insulation voltage, Ui | 660 V |
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| Rated impulse withstand voltage, Uimp | 4 KV |
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| Insulation category | III |
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| Control specification | ||
| Control supply voltage | 19-28 V a.c. / d.c. |
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| Control signals: Current loop control Voltage control Potentiometer control |
4-20 mA, 20-4 mA, 0-20 mA and 20-0 mA ( voltage drop <3 V ) 0-10 V d.c. and 10-0 V d.c. ( input resistance > 300 kohm ) 0-10 kW and 10-0 kW |
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| Insolation: Control inputs Voltage line to control Voltage supply to control |
Floating control input 2.5 kV a.c. 500 V a.c. |
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| Protection | Supply and control inputs are protected against overload and over voltage |
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| EMC immunity | Meets requirements of EN50082-1 and EN50082-2 |
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1) Contactors designed for 600 V: Max. AC-3 load: 10 A Max. type 2 co-ordination fuse: 450 A2S
| Operational current max. AC-1 | Supply voltage | Dimensions | Type | Operational voltage | |
| 24-230 V a.c. Code # | 24-480 V a.c. Code # | ||||
| 30 A | 19-28 V a.c. / d.c. | 45 mm module | ACI 30-1 | 037N0057 | 037N0059 |
| 50 A | 24-230 V a.c./d.c. | 90 mm module | ACI 50-1 | 037N0058 | 037N0060 |
Operating at high temperatures
If the contactor is placed inside small cabinets, care must be taken to avoid exceeding the max. ambient temperature. Otherwise the current must be derated according to table.
| Ambinet temperature | ACI 30 | ACI 50 |
| 40 oC | 30.0 A | 50.0 A |
| 50 oC | 25.0 A | 40.0 A |
| 60 oC | 20.0 A | 30.0 A |