Nordson BM 200 - Heating and Temperature Control Systems; Undertemperature Interlock; Overtemperature Indication; Shutdown; Temperature Setback Function

Introduction
2‐16
P/N 397189E
E 2006 Nordson Corporation
BM200_EASY_GEAR
Heating and Temperature Control
The heating punch is heated by cast‐in heating elements.
Temperatures are measured by sensors and electronically controlled.
Undertemperature Interlock
The undertemperature interlock prevents the system from being started up
before the material has exceeded the temperature setpoint minus
undertemperature value. However, every time initial heating occurs, the
interlock is not released until the actual temperature is 3 ° C (5.4 ° F) below
the temperature setpoint.
The undertemperature interlock locks the motors, solenoid valves and, in
some cases, other components of the application system. Refer to the wiring
diagram to determine which components are locked.
Overtemperature Indication / Shutdown
The independently operating overtemperature shutdown mechanisms
protect the system and the material from overheating. For overtemperature
shutdown, the heating and motor are switched off. The red indication lamp
Collective fault lights up.
S Overtemperature indication through temperature controller: When the
temperature setpoint plus
overtemperature value has been reached, the
relay output Collective fault is switched and the red indication lamp
Collective fault lights. The system remains ready for operation.
S Overtemperature shutdown by temperature controller: The
overtemperature shutdown value is set automatically 30 ° C (54 ° F)
higher than the highest temperature setpoint value.
S Overtemperature shutdown by thermostat(s): Serves as an emergency
switch OFF in case the overtemperature shutdown of the temperature
controller does not function properly. Refer to section Technical Data for
shutdown value.
WARNING: When the overtemperature shutdown is triggered, there is either
a fault in settings or system malfunction. Switch off the system and have the
fault remedied by qualified personnel.
Temperature Setback
Serves to protect the material and save energy during interruptions in
production or work stoppages. Setback value and setback period are
adjustable.