3.2
Electrical connection examples
If output options are fitted refer to the ”PM4 Panel Meter Optional Output Addendum” booklet
for connection details.
AC power connections - supply type is factory configured, check before connecting
1
2
3
4
5
6
7
8
9 10 11
Case earth
Neutral
Active
DC power connections (12 to 48VDC) - supply type is factory configured, check before connecting
Clock and signal connections between sensor and display
Maximum cable length: Maximum cable length is normally determined by the device being connected
to the PM4. Consult the handbook for the SSI device used for details of maximum cable length.
Notes: Twisted pair cable must be used for clock and data. refer to the
SSI RAtE
function for
details of clock frequency settings which may be required for long cable lengths and to the section
on link settings below.
3.3
Input Board Link Settings
Two links are fitted to the input board, these are LK1 and LK2. These links are used to bring
terminating resistors for the clock and data lines into or out of circuit. For long cable runs these
links should be in. The links are located close to the DATA A and B connector on the input circuit
board.
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PM4SSIMAN-2.2-0