Page 12 
3 Wire 
 
Terminal 1  + ve Current Output (4 – 20mA SINK MODE)  
    (NOT USED IN SOURCE MODE) 
Terminal 2   - ve ground (4-20mA SINK MODE) 
Terminal 3  - ve: Direct Current (DC) input (11-30VDC) 
Terminal4  + ve: Direct Current (DC) input (11-30VDC) 
Terminal 5  + ve Current Output (4 – 20mA SOURCE MODE)  
Terminal   + ve: 0-10V output (P842 = 1) or 0-5V output (P842 = 0) 
Terminal 7  - ve: 0-10V output (P842 = 1) or 0-5V output (P842 = 0) 
Terminal 8   Relay 1 Normally Open (N/C) Contact (De-energised) 
Terminal 9  Relay 1 Common 
Terminal 10  Relay 1 Normally Closed (N/O) Contact (De-energised) 
Terminal 11  Relay 2 Normally Open (N/C) Contact (De-energised) 
Terminal 12  Relay 2 Common 
Terminal 13  Relay 2 Normally Closed (N/O) Contact (De-energised) 
 
Important Information 
If the equipment is installed or used in a manner not specified in this 
manual, then the protection provided by the equipment may be impaired. 
 
 
Preparation for Operation 
Before switching on, check the following: 
  The IMP+
IMP+IMP+
IMP+ is mounted correctly. 
  The power supply is correctly installed.