GEA Grasso - Page 7

Grasso
Refri
g
eration Division
GRASSO SYSTEM CONTROL
01.2003/ 0 638660E_foreword.doc Foreword - 3
General P & ID
This diagram is intended to give a general overview of the measuring points provided. The supplied unit may
deviate from this diagram.
MAIN SWITCHGEAR CABINET MAIN SWITCHGEAR CABINET
Input signals Additional output signals
Motor feedback
Motor thermal protection Start motor
Emergency Stop Start oil pump
External ‘ON’ Ready
External ‘LESS’ Running
External ‘MORE’ No alarms
Start release
External reset
Liquid level switch
Gas sensor
Setpoint switch
Figure 0.2: P & ID