25
Input Specifications (For Both NT20M and NT2000M)
Item
Content
Rated input voltage
24 VDC
+10%
/
–15%
Input impedance
5.6 k
Ω
Input current
4.1 mA typical (at 24 VDC)
ON voltage
15.5 V min.
OFF voltage
5.0 V max.
ON delay
2.5 ms max.
OFF delay
2.5 ms max.
Insulation method
Photocoupler
2-5-5
ALM OUTPUT (Alarm Output)
This terminal outputs the PT alarm signal. Use this terminal when you want
to externally monitor status.
NT20M
Load
24 VDC
ALM
OUTPUT
External device
Internal circuit
Internal circuit
Item
Content
Output type
Relay output
Rated load
24 VDC
+10%
/
–15%
Maximum load current
1 A
Minimum switching capacity
10 mA at 5 VDC
Leakage current
0.1 mA max.
Residual current
1.0 V max.
ON delay
2.5 ms max.
OFF delay
2.5 ms max.
Wiring and Connectors
Section 2-5
