Connection, Input connection (field circuit) – Rockwell Automation 937CU-AIHLP-DC1 HART Loop Converter Installation Instructions User Manual
Page 15
Connection
The removable terminal blocks simplify connection and control cabinet construction
significantly. These terminal blocks offer adequate space for the connection of leads
with core cross-sections of up to 2.5 mm² (14 AWG). The terminal blocks are coded
with red coding pins so misconnection of terminal blocks are eliminated.
Input Connection (field circuit)
Connecting the Field Circuit
1.
Connect the field circuit to the blue terminals.
2.
Observe the tightening torque of the terminal screws. The tightening torque is
0 . 5 N m . . . 0 . 6 N m .
The intrinsically safe field circuit may be routed in the hazardous area with connection
lines in accordance with DIN EN 60079-14. You can connect the following field devices:
1.
any separately supplied HART current circuit with transmitter or positioner connected in
Connection to terminals 2 and 3
2.
a HART-capable active current source, e. g., a separately supplied HART measuring
transmitter
Connection to terminals 2 and 3 with bridge between terminals 5 and 6
3.
a 2-wire HART measuring transmitter, e. g., HART measuring transmitter with an analog
output signal of 4 mA ... 20 mA
The HART measuring transmitter is supplied by the isolated barrier
Connection to terminals 1 and 3 with bridge between terminals 4 and 5
parallel
Bul. 937
C HART Loop Converter Installation Instructions
13