Baumuller b maXX 1000, Parameter Manual

Page: 33 / 210

Parameter
Parameter manual b maXX
®
1000
Document no. 5.07004.03
33
of 208
4
Refer to following calculation for protection level and warning level.
1 Protection level (error level)
Z
P0119
–
= V
+10
* (R
PTC1
//47k) / [R1 + (R
PTC1
//47k)]l
2 Warning level
Z
P0120
–
= V
+10
* (R
PTC2
//47k) / [R1 + (R
PTC2
//47k)]
3 Definition:
V
+10
: voltage b10V-ACM, range 10.4 to 11.2 V
DC
R
PTC1
: motor PTC overheat protection level.
Corresponding voltage level set in
Z
P0119
–
R
PTC2
: motor PTC overheat warning level.
Corresponding voltage level set in
Z
P0120
–
47k: is AVI input impedance
R1: resistor-divider (recommended value: 1 to 20 k
Ω
)
Take the standard PTC resistor as example:
If protection level is 1330
Ω
, the voltage b10V-ACM is 10.5V and resistor-divider
R1 is 4.4k
Ω
. Refer to following calculation for
Z
P0119
–
setting.
1330//47000 = (1330*47000)/(1330+47000) = 1293.4
10.5*1293.4/(4400+1293.4)=2.38(V)
≈
2.4 (V)
Therefore,
Z
P0119
–
should be set to 2.4.
Figure 10: PTC resistor curve
P0120
Warning level PTC overheat, refer to
Z
P0119
–
.
P0121
Reset level PTC overheat, refer to
Z
P0119
–
.
P0120 Motor Kaltleiter Überhitzung Warnungsgrenze 0.1 to 10.0 V
EE Motor PTC overheat warning level 1.2 V
ON BM_u_PTCOverheatWarningLevel 10:1 -
P0121 Motor Kaltleiter Überhitzung 0.1 to 5.0 V
EE Motor PTC overheat reset delta level 0.6 V
ON BM_u_PTCOverheatResetLevel 10:1 -