Instruction manual

IMP IMP/P Hot Runner Controllers Instruction Manual
6
Section One
Operating Instructions
IMP Series 15 and 30 Amp
Temperature Controllers
IMP/P Series 10 and 15 Amp
Temperature Controllers
1.1 General Description
The IMP and IMP/P Series are
microprocessor-based PID controllers
specifically designed to perform most
operator functions automatically. The IMP
Series are plug-in units, while the IMP/P
Series are portable, standalone instru-
ments. Both are self-adjusting and capable
of maintaining a very high degree of
temperature accuracy over a wide range
of operating conditions.
Simplified controls and the use of status
symbols allow the operator to make
adjustments easily. The status display also
provides visual indication of normal or
abnormal operating conditions in both
controller and load.
All that is required of the operator is to set
the temperature desired. From that point
on, the controller will automatically per-
form all the operations required to achieve
and maintain the selected temperature.
Included in the design is a built-in safety
feature that will automatically interrupt the
controller output power when any thermo-
couple (T/C) fault is detected, when oper-
ating in closed-loop mode. In open-loop
operation, the display shows percentage
of power as set by the power control
potentiometer (0-100%).
1.2 Installation
(IMP Series Only)
All IMP Series controllers are ready to
use as shipped from the factory. Prior to
installation into a mainframe, make sure
the voltage, Hz, and degree options are
as ordered and correspond to the
Product ID label.
CAUTION
1.3 Operation
Note: Any flashing display indicates that
the controller has detected a fault. Refer
to section on Faults.
Automatic Closed-Loop
Operation
1. Position Mode select switch to
closed-loop (“O”).
2. Set temperature on Setpoint switch.
3. Turn on AC power.
4. After a short reset delay, the
measured temperature will be
displayed. If the temperature is 30°F
(17°C) or more below setpoint, the
under temperature alarm display
(lower segment of the leftmost digit)
will flash. If the temperature is 30°F
(17°C) or more above setpoint, the
over temperature alarm display
(upper segment of the leftmost digit)
will flash. During alarm conditions,
Never insert or remove a
controller from a mainframe
with the AC power on.
Hazardous potentials exist
on components inside the
mainframe and controller.
Always disconnect AC
power to the mainframe
when servicing.
To install a plug-in controller into a
mainframe, release the locking device on
the lower edge of the unit by pulling the
plunger gently away from the panel. Align
the upper and lower edges of the printed
circuit board on the controller with the
mainframe card guide slot and slide in
until the rear connector is completely
engaged. Lock the controller into the
frame by depressing the plunger on
the locking device.