Instruction manual

IMP I IMP/P I SAM Hot Runner Controllers Instruction Manual
3
SECTION 1 OPERATING INSTRUCTIONS
IMP Series 15 and 30 Amp Temperature Controllers
IMP/P Series 10 and 15 Amp Temperature Controllers
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, stand-alone instruments.
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
perform 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
thermocouple (T/C) fault is detected, when operating in
closed-loop mode. In open-loop operation, the display
shows percentage of power as set by the power control
potentiometer (0-100%).
The IMP plug-in controller is capable of receiving a standby
command from the Standby Alarm Module (SAM) auxiliary
module. When a standby or low heat command is acknowl-
edged from the SAM during closed-loop operation, the
controller will operate with a fixed setpoint. When receiving a
standby command during open-loop operation, the output
power of the controller will be reduced to 1/4 of the front panel
power control setting.
1.1