6 Parameter Settings and Functions     
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(3)  Heating and cooling control 
Heating and cooling control mode: heating and cooling with a single temperature controller 
when it is difficult to control subject temperature with only heating or cooling. 
Heating and cooling control mode controls the object using different PID time constants for 
each heating and cooling. It is also possible to set heating and cooling control in both PID 
control or ON/OFF control mode. Heating/cooling output can be selected among Relay 
output, SSR drive voltage output and current output depending on model types choosen 
according to your application environment. (Note that only standard SSR control is available 
for SSR drive output in OUT2.)   
 
  For heating/cooling control, each output for heating and cooling is automatically 
allocated as described in the following table. 
Series 
Remarks 
TM4 
CH1 OUT  CH2 OUT 
Heating output: Selectable control output by model 
Cooling output: Selectable control output by model 
CH3 OUT  CH4 OUT 
TM2   
CH1 OUT  AL1 OUT 
Heating output: Selectable control output by model 
Cooling output: Relay output fixed 
CH2 OUT  AL2 OUT 
 
For TM2 Series, heating output can be selected by models from relay output, SSR drive output 
and current output. Cooling output is fixed to relay output.