Switch Settings / Replacing The Battery - HBM MP85A Operating Manual

MP85A process controller
4

Switch settings / Replacing the battery

Changing the supply voltage for the active transducers
Use switch S1 to select either an internal 5 V supply or an external 24 V
supply as the supply voltage for the active transducers. The factory setting
is 5 V internal sensor supply voltage.
NOTE
The housing needs to be opened for this switchover. Therefore a change
must be made before the MP85A(DP) is mounted.
To set switch S1, proceed as shown in Fig. 4.1.
1
Unscrew the
cover
Fig. 4.1: Opening the housing; position of switch S1 (basic diagram)
Example:
ON
1 2 3 4 5 6
Fig. 4.2: Switch convention
Termination resistor
The CAN termination resistor is activated and deactivated with switch S2
(see Fig. 4.3).
A2392−5.0 en
Switch S1 for the active
transducer supply voltage
means
2
5 V
(int) 24 V
(ext)
S1
33
HBM