Mitsubishi Electric NZ2MFB2-16A User Manual page 48

Precautions when using the contact output module
When using the contact output module, carefully consider the following points:
• Relay life (contact switching life)
• Influence on the relay life by a connected load
• Measures against back EMF
■Relay life (contact switching life)
Applicable module: NZ2MFB2-16R
The relay life varies depending on the environment where a module is used. When using a module, take the use environment
into consideration.
The relay life curve below shows the actual service values, not the guaranteed values. Since an actual contact switching life
may be shorter than the relay life curve, replace the module with a sufficient margin for the life.
Y
200
100
70
50
30
20
10
7
5
DC100V
τ=7ms
3
2
1
0.1 0.2 0.3
Use environment
Rated switching voltage/current load
1.5A at 200VAC, 1A at 240VAC (COS = 0.7)
0.4A at 200VAC, 0.3A at 240VAC (COS = 0.7)
1A at 200VAC, 0.5A at 240VAC (COS = 0.35)
0.3A at 200VAC, 0.15A at 240VAC (COS = 0.35)
1A at 24VDC, 0.1A at 100VDC (L/R = 7ms)
0.3A at 24VDC, 0.03A at 100VDC (L/R = 7ms)
6 INSTALLATION AND WIRING
46
6.1 Before Using the I/O Modules
0.5 0.7 1 2 3
X: Switching current (A)
Y: Switching life (in units of 10000 times)
(L/R): Time constant
cos: Power factor
DC30V τ=0ms
Φ
AC100V cos =0.7
Φ
AC200V cos =0.7
Φ
AC100V cos =0.35
Φ
AC200V cos =0.35
DC24V τ=7ms
Φ
AC120V cos =0.2
Φ
AC240V cos =0.2
X
5
Contact switching life
100 thousand times
100 thousand times
300 thousand times
100 thousand times
300 thousand times
100 thousand times
300 thousand times