11-2
Chapter 11. SPECIFICATIONS
z DC current input
Input impedance: Max. 100 Ω
Burnout indication:
Downscale + AL02
However, the burnout cannot be detected in a range of 0 to 20 mA.
Allowable input
current: Max. 30 mA
Allowable input voltage: Max. 4 V (a higher voltage might cause device failure)
Note: When the power to this controller is turned off, the current input circuit is cut off. If you connect
two or more current-input type controllers in series, change the current input to voltage input by
connecting a resistor (No. 81401325, sold separately). See Chapter 4.
z
Digital input
Number of input points:
2 points
Input type: No-voltage contact or open collector
Allowable ON contact
resistance: Max. 250 Ω
Allowable OFF contact
resistance: Min.100 kΩ
Allowable ON-state
residual voltage: Max. 1.0 V
Open terminal voltage: 5.5 V DC ± 1 V
ON terminal current: Approx. 7.5 mA (at short-circuit), Approx. 5.0 mA (at contact resistance
of 250 Ω)
Minimum hold time: 1 s or more
z
Current transformer input
Number of input
points: 2 points
Input object: Current transformer with 100 to 4,000 turns (availability is by 100-turn
units)
Optional unit Model No.: QN206A* (800 turns, hole diameter: 5.8 mm)
Optional unit Model No.: QN212A* (800 turns, hole diameter: 12 mm)
* Not UL-certified.
Current measurement
lower limit:
0.4 A AC (800 turns, 1 time)
Formula; Number of turns ÷ (2000 × number of power wire loops)
Current measurement
upper limit:
50.0 A AC (800 turns, 1 time)
Formula; Number of turns ÷ (16 × number of power wire loops)
Allowable measured
current:
70.0 A AC (800 turns, 1 time)
Formula; Number of turns ÷ (16 × number of power wire loops) × 1.4
Display range lower
limit: 0.0 A AC
Display range upper
limit: 70.0 A AC (800 turns, 1 time)
Formula; Number of turns ÷ (16 × number of power wire loops) × 1.4
Display accuracy: ±5 %FS
Display resolution: 0.1 A AC
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