Nor-Cal SDC15 Controller - Manual (Page 6)

iv
CAUTION
The part between the control output 1 and control output 2 is not
isolated. When necessary, use an appropriate isolator.
Do not connect multiple loader cables to multiple units from one
personal computer. The current coming from other circuits might
cause the PV value indication error to occur.
Do not connect any terminating resistor to both ends of the
communication path when performing the RS-485 wiring.
Doing so might cause the communication to fail.
Always mount a switch for shut-down of the main power of this unit in
an easily accessible area of the operator when performing electric
wiring of this unit. Additionally, connect a slow-action type (T) fuse
having a rated current of 0.2A and rated voltage of 250V to the wiring
for the instrument power supply of the AC power supply model.
(IEC127)
Do not operate the key with a propelling pencil or sharp-tipped object.
Doing so might cause faulty operation.
This unit incorporates the self-tuning function without use of control
constant settings in addition to the ON/OFF control and conventional
PID control. This self-tuning control monitors and studies the
characteristics of the control subject even if the SP value is changed or
external disturbance occurs in order to automatically calculate the
control constants. This ensures stable control all the time.
Important Notice Prior to Use of This Unit
The protective film is adhered to the front console of this unit to protect the surface.
After the installation and wiring work has been completed, stick a scotch tape to the corner of the console and pull it
out in the direction indicated by an arrow to peel off the protective film.
Handling Precautions
If you attempt to peel off the protective film with your fingernail, this might
cause damage to the console.
ot2
ot1
ev3
ev2
ev1
man
rdy
para
mo
de
Adhesive tape Pull out.