GE VersaMax Manual page 268

Thermal Derating
The number of points that can be on at the same time depends on the ambient temperature,
the external voltage, and the orientation of the module and DIN rail. The charts that follow
show thermal deratings for this module at 24V and 30V. The shaded bands are temperature
ranges that represent allowable combinations of inputs points for the indicated number of
outputs points. All combinations of points are permissible at lower temperatures. The
narrow white line within each range shows maximum temperature with two inputs on for
each output (for example: 3 outputs and 6 inputs).
GFK-1504K Chapter 9 Discrete Mixed Modules
Mixed Module, Output Relay 2.0A Isolated 8 Points
/ Input 24VDC Pos/Neg Logic Grouped 16 Points
24VDC
Ambient Temperature
35ºC 40ºC 45ºC 50ºC 55ºC 60ºC
8
7
Maximum
with 16
inputs ON
6
5
4
All
3
combinations
of points OK
2
1
24VDC
Ambient Temperature
35ºC 40ºC 45ºC 50ºC 55ºC 60ºC
8
7
Maximum
with 16
6
inputs ON
5
4
All
3
combinations
of points OK
2
1
IC200MDD845
30VDC
Ambient Temperature
30ºC
35ºC 40ºC 45ºC 50ºC 55ºC 60ºC
8
7
6
All
5
combinations
of points OK
4
3
2
Maximum
with 16
1 inputs ON
30VDC
Ambient Temperature
30ºC
35ºC 40ºC 45ºC 50ºC 55ºC 60ºC
8
7
6
All
5
combinations
of points OK
4
3
Maximum
2
with 16
inputs ON
1
9
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