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Device manual
Contents
1. Function overview .................................................................................................................................................................... 4
2. Operating and setting ................................................................................................................................................................ 5
2.1
Setting setpoint in automatic mode................................................................................................................................. 6
2.2
Opening/closing the actuator in manual mode................................................................................................................ 6
2.3
Modbus communication display via PV-display ............................................................................................................ 6
2.4
Displaying the manipulated variable Y via PV-display.................................................................................................. 6
2.5
Switch over to configuration level.................................................................................................................................. 7
2.6
Changing the scrolling direction in the configuration level............................................................................................ 8
2.7
Switch over to second operating level (user-defined operating level) ............................................................................ 8
2.8
Setting configuration points............................................................................................................................................ 9
3. Configuration level ................................................................................................................................................................. 10
3.1
Optimisation for automatic determination of favourable control parameters.......................................... OPt.............. 10
3.2
Proportional band .................................................................................................................................... Pb................ 14
3.2.1 Three-position controller .............................................................................................................................................. 14
3.3
Integral action time.................................................................................................................................. tn................. 14
3.3.1 Two-position controller ................................................................................................................................................ 14
3.4
Derivative action time ............................................................................................................................. td................. 14
3.5
Dead band................................................................................................................................................ db ................ 14
3.6
Actuating time ......................................................................................................................................... t.P................ 14
3.7
Basic alarm type description......................................................................................................................................... 15
3.7a Alarm type A ................................................................................................................................................................ 15
3.7b Alarm type B ................................................................................................................................................................ 15
3.7c Alarm type C ................................................................................................................................................................ 15
3.7.1 Alarm type selection for alarm relay ....................................................................................................... AL.1............ 16
3.8
3.9
Scaling the process variable display PV.................................................................................................. dI.L, dI.H .... 17
3.11 *Second setpoint SP.2 at 6x90B(-y) /1 /4 /4-i ....................................................................................... SP.2............. 17
3.12 Setpoint ramp SP.r................................................................................................................................... SP.r ............. 18
3.13 Ramp direction ........................................................................................................................................ rA.d............. 18
3.14 Delta setpoint........................................................................................................................................... dSP.............. 19
3.15 Delta setpoint description ............................................................................................................................................. 19
3.16 Process gain P.G...................................................................................................................................... P.G.............. 22
3.17 Measured value filter for the process variable PV................................................................................... FIL .............. 22
3.18 Behaviour in case of sensor failure for PV.............................................................................................. SE.b ............ 22
3.19 Interlocking the manual/automatic switch over....................................................................................... Man............. 22
3.20 Direction of effect of the controller......................................................................................................... dIr ............... 22
3.21 Assigning the control function SECOND SETPOINT SP.2 to a *digital input at 6x90B(-y) /1 /4 /4-i. S2.d............. 23
3.22 Assigning the control function OPEN to a *digital input at 6x90B(-y) /1 /4 /4-i.................................. OP.d............ 23
3.23 Assigning the control function CLOSE to a *digital input at 6x90B(-y) /1 /4 /4-i ............................... CL.d............ 23
3.24 Assigning the control function STOP to a *digital input at 6x90B(-y) /1 /4 /4-i .................................. St.d.............. 23
3.25 Important information about setting digital inputs ....................................................................................................... 23
3.26 Adjusting the digital inputs for the usage with INBAS ................................................................................................ 23
3.27 Calibration correction for the process variable input PV ........................................................................ C.CO........... 23
3.28 Synchronizing the manipulated variable Y-display................................................................................. Y.SY ........... 24
3.29 Important information about setting t.P in coherence with Y.SY at 6490B(-y) ......................................................... 25
3.30 Baud rate for *serial interface at 6x90B(-y) /3 /4 /4-i ............................................................................ bd ................ 25
3.31 Address of *serial interface at 6x90B(-y) /3 /4 /4-i............................................................................... Adr.............. 25
3.32 *Serial communication at 6x90B(-y) /3 /4 /4-i...................................................................................... S.C .............. 25
3.33 Second operating level ............................................................................................................................ OL.2............ 25
W. Bälz & Sohn GmbH & Co.
Koepffstraße 5
D-74076 Heilbronn
6490B / 6490B-y / 6590B
Telefon (07131) 1500-0
Page 2
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Telefax (07131) 1500-21
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