Mitsubishi QX10 User Manual page 24

1 GENERAL SPECIFICATIONS AND PRECAUTIONS FOR USE
200
100
70
50
30
20
10
7
5
3
2
1
0.1
1 - 6
(7) Precautions for using the contact output module
When using the contact output module, consider the following.
• Relay life (contact switching life)
• Effects to relay life due to connected load
• Measures against back EMF
(a) Relay life
Applicable module: QY10, QY10-TS, QY18A
The relay life depends on the operating environment.
Select a module according to the operating environment.
The relay lives shown below are the actual service values, not the guaranteed
values. Replace the module well in advance since the actual switching life may
be shorter than the one shown below.
100VDC
=7ms
(L/R): Time constant
cos : Power factor
0.2 0.3 0.5 0.7 1
Switching current (A)
MELSEC-Q
30VDC =0ms
100VAC cos =0.7
200VAC cos =0.7
100VAC cos =0.35
200VAC cos =0.35
24VDC
120VAC cos =0.2
240VAC cos =0.2
2 3 5
=7ms
1 - 6