Siemens LMS14

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Building Technologies Division User Manual LMS14... CC1U7471en
6 The settings in detail 07.05.2014
 Boiler shutdown is triggered when:
Water pressure Hx  maximum water pressure
 Limitation of output is triggered when:
Water pressure Hx  minimum water pressure
 Boiler and pump shutdown are triggered when:
Water pressure Hx  critical minimum water pressure
 Limitation is canceled when:
Water pressure Hx < maximum water
pressure – water pressure switching differential
Water pressure Hx > minimum water pressure
+ water pressure switching differential
 Boiler shutdown is canceled when:
Water pressure Hx < maximum water pressure
– water pressure switching differential
Water pressure Hx > critical minimum water pressure
+ water pressure switching
differential
When water pressure supervision becomes active, a maintenance message or lockout
code appears.
 The maintenance message is triggered when:
Water pressure Hx  minimum water pressure

The fault status message is triggered when:
Water pressure Hx  critical minimum water pressure
 The maintenance message or lockout code is canceled when:
Water pressure Hx < maximum water pressure – water pressure switching differential
Water pressure Hx > minimum water pressure
+ water pressure switching differential
In the case of
Static press superv sh’down = Lockout, the lockout code is canceled only
when making a reset.
Line no. Operating line
[4197.1]
Outp’reduc press’swit
6140 Water pressure max
6141 Water pressure min
6142 Water pressure critical min
6143 Water Pressure SD
6150 Water pressure 2 max
6151 Water pressure 2 min
6152 Water press 2 critical min
6153 Water Pressure 2 SD
6180 Water pressure 3 max
6181 Water pressure 3 min
6182 Water press 3 critical min
6183 Water Pressure 3 SD
Note!
The parameters used for the water pressure limits are OSV- (out of service)
compatible. OSV functionality allows certain pressure tests of the static pressure
switch to be deactivated.
If all types of pressure supervision are deactivated via the OSV function, only the
respective water pressure is displayed.
Caution!
If all types of static pressure supervision are deactivated via the OSV function,
dynamic pressure supervision remains activated. In that case, a plausibility
check of the sensor is not made, which means that sensor faults can no longer
be detected since the test is performed by acquiring the static pressure values.
A
dditional parameters