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Device manual
6490B / 6490B-y / 6590B
W. Bälz & Sohn GmbH & Co. Koepffstraße 5 D-74076 Heilbronn Telefon (07131) 1500-0 Telefax (07131) 1500-21
9. Overview of configuration level, data list
Configuration point Display Setting Remarks
Optimisation
OPt
0
No optimisation
1
Optimisation active
Proportional band
Pb
1.0% to 999.9%
Three-position controller
Pb =
0 tn > 0; db = dead band
Integral action time
tn
1s to 2600s
Two-position controller
tn =
0 db conforms to switching hysteresis
Derivative action time
td
1s to 255s; PI-control at td = 0
Dead band
db
0 to 10th part of the scope of the measuring range [phys. units]
0 to + scope of the measuring range [phys. units] at dP = 3
Valve actuating time
t.P
5s to 300s
Alarm 1
AL.1
0 No alarm, also not in case of sensor failure
1 Alarm A, depending on the setpoint, also in case of sensor failure
2 Alarm B, fixed limit value, also in case of sensor failure
3 Alarm C, band transgression around the setpoint, also in case of sensor failure
4 Alarm B, fixed limit value, alarm at under-temperature, also in case of sensor
failure
Alarm 1, type A (at AL.1=1)
A1.A
0 to
±
scope of measuring range [phys. unit]
Alarm 1, type B (at AL.1=2/4)
A1.b
measuring range: dI.L to dI.H [phys. unit]
Hysteresis for A1.A/A1.b
HY.1
0 to 10th part of the scope of the measuring range [phys. units]
0 to + scope of the measuring range [phys. units]at dP = 3
Alarm 1, type C lower limit
A1.C
0 to - scope the of measuring range [phys. unit]
(at AL.1=3)
Hysteresis, lower limit for A1.C HY.1
0 to 10th part of the scope of the measuring range [phys. units]
0 to + scope of the measuring range [phys. units]at dP = 3
Alarm 1, type C upper limit
A1.C.
0 to + scope of the measuring range [phys. unit]
(at AL.1=3)
Hysteresis, upper limit for A1.C HY.1.
0 to 10th part of the scope of the measuring range [phys. units]
0 to + scope of the measuring range [phys. units]at dP = 3
Decimal point
dP
0 Display without decimal point
e.g. 1234
1 Display with 1 decimal
e.g. 123.4
2 Display with 2 decimals
e.g. 12.34
3 Display with 3 decimals
e.g. 1.234
Scaling low
dI.L
Displayed value at start of scale, -999 to dI.H-1 [phys. unit]
Scaling high
dI.H
Displayed value at full scale, dI.L+1 to 9999 [phys. unit]
Setpoint limiting low
SP.L
usually dI.L to SP.H [phys. unit] SP.L = SP.H: fixed setpoint
not valid
Setpoint limiting high
SP.H
usually SP.L to dI.H [phys. unit] SP.L > SP.H: two setpoints for SP.2
Second setpoint *
SP.2
dI.L to dI.H [phys. unit], switch over via digital input SP.2
Setpoint ramp
SP.r
0 to scope of measuring range [phys. unit (°C) per min/hour]
Ramp direction, time unit
rA.d
0 phys. unit/min, rising and falling setpoint ramp
1 phys. unit/min, only rising setpoint ramp
2 phys. unit/min, only falling setpoint ramp
3 Ramp deactivated (similar to SP.r = 0)
4 phys. unit/hour, rising and falling setpoint ramp
5 phys. unit/hour, only rising setpoint ramp
6 phys. unit/hour, only falling setpoint ramp
* option
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