Spirax Sarco SP400 - Electrical connections; Terminal block

IM-P343-37 CTLS Issue 4
21
SP400 Electropneumatic Smart Positioner
6.1 Guidance notes on wiring installation
For heavy industrial applications it is recommended to use screened cables or signal cables run in metal
conduit. Failure to do so could result in positional errors of up to ±5% in an RF field excess of 10 V/m. If
screened cables are used, ensure that the screen is connected to the local earth at one end with a connection
resistance of less than 1 ohm.
For light industrial applications where RF fields do not exceed 3 V/m unscreened cables may be used.
Cabling should be installed in accordance with BS 6739 - Instrumentation in Process Control Systems:
Installation design and practice or local equivalent.
6.2 Wiring diagrams
6.2.1 Terminal block
No. Pole Description
1 +
Not used
2 -
3 +
4-20 mA current signal input Mainboard
4 -
5 +
Not used
6 -
7 +
Not used
8 -
9 +
Not used
10 -
Fig. 26
6. Electrical connections
SP400
AUTOMATIC TUNE
50
%
SET AUTOS MANUAL MENU
- +
4-20mA
1
2
3
4
5
6
7
8
9
10
▲
▲
AUTOSTROKE
keep pressed