Appendix B
Specifications
74
Special Considerations
for C500-OA225
The maximum current value allowed per point differs depending on the ambi-
ent temperature and the number of points per common that are ON simulta-
neously. The graph below shows the relationship between the allowable cur-
rent per point and the number of points ON per common. Be sure not to ex-
ceed the values depicted in the graph.
1.0
0.8
0.6
0.4
0.2
0
1
2
3
4
5
6
7
8
Current
value
per
point (A)
Number of points per common
that can be turned ON simultane-
ously.
25
°
C
40
°
C
55
°
C
Environment temperature
Number of Points Per
Common Turned ON
Simultaneously
The graph below shows the value of an surge current and the time it takes
the current to level to a steady stream of current (current-carrying time). The
curved line in the graph represents the maximum value of surge current at
which the Unit can operate properly. It is suggested that when opening and
closing a load with a large surge current, to keep the value of the surge cur-
rent to half the value shown the graph (within the shaded area).
0
10
5
15
10
30
50
100 200
500
1,000
5.000
Inrush
Current
(A. Peak)
Current-carrying time (ms)
Summary of Contents for SYSMAC C500
Page 1: ...Cat No W132 E1 4 Programmable Controller SYSMAC C500...
Page 2: ...C500 Programmable Controller Installation Guide Revised May 2000...
Page 37: ...29 SECTION 4 System Connections 4 1 Current Consumption 30 4 2 I O Connections 33...
Page 49: ...43 SECTION 6 Power Considerations...
Page 54: ...49 SECTION 7 Safety Considerations...
Page 58: ...53 A Inspection and Maintenance 54 B Specifications 57 C Standard Models 97 Appendix...
Page 96: ...Appendix B Specifications 91 A shape I O Unit B shape I O Unit...
Page 97: ...Specifications Appendix B 92 C shape I O Unit D shape I O Unit...
