IMR01M01-E16
27
9. SPECIFICATIONS
Number of phase: Single-phase
Rated current: 20 A AC, 30 A AC, 45 A AC, 60 A AC, 80 A AC and 100 A AC
For the ambient temperature characteristic, refer to temperature characteristic graph. (P. 3)
Minimum load current: 0.6 A (20 A type), 1 A (30 A, 45 A, 60 A, 80 A and 100 A types)
Power supply voltage: 90 to 264 V AC [Including power supply voltage variation] (Rating: 100 to 240 V AC)
Power frequency: 50/60 Hz (Automatic discriminating)
Allowable power frequency variations:
±1 Hz (Performance guarantee) ±2 Hz (Operation guarantee)
Input signal: Current input 4 to 20 mA DC (Input impedance: 100 Ω)
Voltage input 0 to 10 V DC (Input impedance: 68 kΩ)
Voltage input 1 to 5 V DC (Input impedance: 30 kΩ)
Voltage pulse input 0/12 V DC (Input impedance: 30 kΩ)
Dry contact input (Input impedance: 47 kΩ)
Output voltage range: 0 to 98 % of rating voltage
Applicable load: Phase control: Linearity (R: resistor) load
Control of primary side of a transformer
The magnetic flux density must be 1.25 T [12,500 Gauss] or less when the
protection function for control of primary side of a transformer is not provided.
Zero-cross control: Linearity (R: resistor) load
Corresponding utilization category:
AC-51
Overload current profile and duty cycle or OFF-time:
1.1 x Ie – 60 s
Comprising the rating index:
50 - 60
Control method: Phase control (No feedback) Zero-cross control (No feedback)
Output setting range: Internal manual set value: 0.0 to 99.9 % (Set by theTHV-1 front keys)
External manual set value: 0 to 100 % (Set by the setter
1
)
External gradient set value: 0 to 100 % (Set by the setter
1
)
Internal gradient set value: 0 to 100 % (0.00 to 1.00) (Set by the THV-1 front keys)
Output limiter high set value: 0.0 to 99.9 % (Set by the THV-1 front keys)
Output limiter low set value: 0.0 to 99.9 % (Set by the THV-1 front keys)
Base-up set value: 0.0 to 99.9 % (Set by the THV-1 front keys)
1
Optional
Output mode: Proportional phase angle to input
2
Proportional voltage to input
2
Proportional square voltage (electric power) to input
2
Constant current control (optional)
2
2
When the Phase control use the linearity (R: resistor) load
Power off leakage current:
27 mA AC rms or less (load voltage 200 V rms, 60 Hz, Ta=25 °C)
Ramp (Soft-start/Soft-down) function:
Setting range: 0.0 to 99.9 seconds (Set by the THV-1 front keys)
Auto/Manual mode selection:
External dry contact
External contact closed: Manual mode
External contact open: Auto mode
Heater break alarm function (optional):
When the power source ripples of main circuit is sine-wave
Input: Current transformer (built-in)
Measured accuracy: Within ±2 A (20 A and 30 A types)
Within ±10 % of maximum load current (45 A, 60 A, 80 A and 100 A types)
Output: 1 point, open collector output 24 V DC, Max. 100 mA
Output ON/OFF at alarm is selectable.
Protection function for control of primary side of a transformer:
Applicable control method:
Phase control
Setting range: Protection function for control of primary side of a transformer:
0 (disable)/1 (enable)
Determination set value in case of a break on the secondary side of the transformer:
0 to 100 % of computed heater current value
(Deviation setting against the computed heater current value.)
Output limiter setting in case of a break on the secondary side of the transformer:
20.0 to 50.0 % of phase angle
Soft-start time in case of break on the secondary side of the transformer:
0.1 to 99.9 seconds
Abnormity judgment conditions:
Phase angle 20 % or more
Sampling cycle: 0.5 of power cycle
Action at the time of automatic release from the break (momentary power failure) of secondary side of the transformer:
Output by soft-start function at the time of the break (momentary power failure) of
secondary side of transformer.
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