3-Phase AC Power Controller (IP3 Series)
This is a highly functional power controller for 3-phase power heaters.
Outline
The IP3 Series is a highly functional power controller for 3-phase power heaters. This controller is standardly equipped with various functions, and various optional warning functions of safe design can also be provided. The settings can also be performed easily from the front keys or an external setting device (volume), and the rated current corresponds to a wide range from AC20 to 100A.
Features
- - Gradient setting and soft-start / soft-stop can be performed from the front keys
- - Supports various control functions
- - High speed response
- - Automatic frequency distinction function: Switching between 50 Hz/60 Hz is not required
Specifications
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| Specifications | IP3 |
|---|---|
| Rated current | AC20A, 30A, 45A, 60A, 80A, 100A |
| Control method | Phase control, cycle control, zero crossing control (can be changed) |
| Applicable loads | Phase control: Linearity (R: Resistance) load, Transformer primary side control (Flux density: about 8,000 gauss or less) Cycle control, zero-crossing control: Linearity (R: Resistance) load |
| Input signal | [Group 1] DC input: DC4 to 20 mA (Input impedance: 100Ω) DC input: DC0 to 20 mA (Input impedance: 100Ω) DC voltage input: DC0 to 5V (Input impedance: 30kΩ) DC voltage input: DC1 to 5V (Input impedance: 30kΩ) Voltage pulse input: DC0/12V (Input impedance: 30kΩ) No voltage contact input |
| [Group 2] DC voltage input: DC0 to 10V (Input impedance: 68kΩ) Voltage pulse input: DC0/12V (Input impedance: 68kΩ) Voltage pulse input: DC0/24V (Input impedance: 68kΩ) No voltage contact input |
|
| Minimum load current | 1A |
| Output voltage range | 0 to 98% of rated voltage |
| Power supply voltage | AC180 to 264V (Including source voltage fluctuation) rating: AC200 to 240V |
| Power consumption | 17VA or less |
| Power supply frequency | Common to 50/60Hz (Automatic distinction) |
| Allowable frequency fluctuation | 50Hz ±1Hz, 60Hz ±1Hz (Performance guaranteed) 45Hz to 54.9Hz (50Hz), 55 to 64.9Hz (60Hz) (Operation guaranteed) |
| Output setting range | Gradient setting: 0 to 100% [Front keys, external setting device (Volume)] Output limiter (Upper limit): 0.0 to 100.0% (Front keys) Output limiter (Lower limit): 0.0 to 100.0% (Front keys) Output limiter at start (Upper limit): 0.0 to 100.0% (Front keys) Output limiter time at start: 0.0 to 600.0 sec (Front keys) Base-up setting (Output bias): 0.0 to 100.0% (Front keys) Manual setting: 0.0 to 100.0% [Front keys, external setting device (Volume)] |
| Output mode | In the linear (R: Resistance) load during phase control, the input-phase angle proportional rate, input-voltage proportional rate, and input-voltage square proportional rate can be switched |
| Cooling method | Natural cooling |
| Allowable ambient temperature | Performance guaranteed range: 0 to +40 ºC Operation guaranteed range: -15 to +55 º |
| Allowable ambient humidity | 5 to 95%RH (No condensation) Absolute humidity: Max. W. C29.3 g/m3, dry air at 101.3kPa |
| Withstand voltage | Between main circuit terminals, power supply terminals and heat sink: AC2,000V, 1 minute |
| Insulation resistance | Between main circuit terminals, power supply terminals and heat sink: 20MΩ or more, DC500V |
| Mounting method | Vertical mounting |
| Weight | Approx. 5.8 kg (20 to 60A), Approx. 13.6 kg (80A, 100A) |
| RoHS compliant | ○ |
Standard Functions
1. Gradient Setting
The relationship between the set input and output voltage can be set. The gradient can be set by either the front keys of the unit or an external setting device. The control characteristics are the following (1) to (3) depending on the setting.
- 1) Automatic setting input x internal gradient setting x external gradient setting
- 2) Automatic setting input x internal gradient setting
- 3) Manual setting x internal gradient setting x external gradient setting
2. Soft-Start / Soft-Stop
Even when the set input changes suddenly, the output changes gradually to suppress the inrush current.
The soft-start / soft-stop times can be set individually from 0.1 to 99.9 sec by the setting keys.
3. Base-Up Settings (Output Bias)
The output can be set when the set input is at 0%. This setting can be performed by the front keys of the unit. (The base-up setting is enabled when the lower limit of the output limiter is set to 0.0.)
4. Output Limiter (Upper Limit / Lower Limit)
The upper limit and lower limit of the output can be set.
5. 3 Types of Output Modes
The output mode can be selected from 3 types, including the input-phase angle proportional rate, input-voltage proportional rate, and input-voltage square (power) proportional rate in the linear load (R: Resistance) during phase control.
* It is set to the input-voltage square proportional rate at the time of shipment.
6. Upper Limit Output Limiter during Startup
This function is for limiting the output only for the time arbitrarily set when the power is turned ON or control is started.
This function is effective for heaters where an inrush current flows (halogen lamps, platinum, tungsten, molybdenum, etc.).
7. Event Input and Various Warnings
Control Start (RUN) / Control Stop (STOP), Automatic / Manual switching, and alarm interlock canceling can be performed externally by a non-voltage contact.
This series is standard equipped with warning functions, including reversed-phase detection, abnormal power supply frequencies, and FAIL. The warning output can be selected so that a warning is generated when any one of the above is detected (warning output logic selection).
Optional Functions
1. Constant Current Control (During Phase Control)
This function automatically corrects the current so that the output current does not change with the fluctuation of the power supply voltage and load during control. This is ideal for heaters that use precious-metals, such as platinum, molybdenum, tungsten, tantalum, super kanthal and others where the resistance changes greatly (about 10 times) by changes in the temperature.
2. Constant Power Control (During Phase Control)
This function outputs an effective power value proportional to the input, even when the power voltage and load fluctuate during control.
This is suitable for heaters that use silicon carbide and SILICONIT where the resistance value increases with the temperature change and secular change.
3. Constant Voltage Control (During Phase Control)
This function automatically corrects the voltage so that the output voltage does not change with the fluctuation of the power supply voltage and load during control.
4. Current Limiter (During Phase Control)
This function automatically corrects the current so that the output current does not increase beyond the set current. The setting range is within 30 to 100% of the rated current.
* Since the inrush current cannot be suppressed for a load with a high inrush current, use in combination with the soft-start function.
5. Heater Disconnection Warning
This function detects the load current, and generates a warning when the load current is higher or lower than the set value, when the set heater disconnection warning value is compared with the load current value.
* In the case of phase control, this function does not activate when the phase angle is 15% or less (15% or less of the set maximum load value).
6. Overcurrent Warning
This function generates a warning when the output current becomes more than 1.2 times the rated current.
7. Fuse Disconnection Warning
In the case of a fast acting fuse with a micro switch, this function outputs a warning when a fuse is disconnected.
