West Control Solutions KS 800 Operating Instructions - Manual (Page 21)

Multi-Temperature-Controller KS 800
Starting with controller 1, the 1st controller, which has a continuous output, is allocated to analog
output 1 (AO1).
E.g. controller 1 and 2 are two-point controllers (heating, switching), controller 3 is configured as a
three-point controller (heating switching, cooling continuous): the first free analog output (AO1) is
allocated to the cooling output of controller 3. (The output of the 3rd controller is connected with the
1st analog output (AO1).) Analog output 2 (AO2) is used by the following controller output which is
configured as an analog output. Analog outputs which are added or removed subsequently shift the
controller
⇔
analog output allocation.
When planning or changing the installation, note that controller outputs and
analog outputs must not have the same numbering.
2. From Instrument number 8397 (Jan. 2002), operating version 5
The analog output allocationto the hardware output is fixed: controller 1 -> analog output 1,
controller 2 -> analog output 2, etc. Analog outputs which are not required for individual controllers
can be used for analog output of other variables (Xeff, Weff, Ypid, Y1heating, Y2cooling of this
channel, or for forcing.
6.3 Alarm outputs
The three alarm outputs of KS 800 are accessible at connector J3.
The alarms
HC alarm: alarm is output with the heating current below the adjusted controller-specific limit
value (to ensure the heating power; high impedance of heating elements develops slowly).
Leakage current alarm: Alarm generated in case of differential current due to insulation
error. Monitoring is done by an external unit for differential current monitoring with relay
output. This relay provides error signalling to digital input IN/OUT15 configured for this pur-
pose. The insulation error can be signalled via the fieldbus or via an alarm output
(OUT17...19).
Caution!!! Never use this leakage current alarm message for monitoring of
faulty currents which are inteded for safety against contact with high
voltages.
Output monitoring alarm: alarm is output if one of outputs OUT1...OUT8 does not go to
the status determined instantaneous by the control algorithm.
can be allocated to each of alarm outputs OUT17...OUT19. The outputs are "open-collector outputs"
and can be configured for normally closed or normally open operation.
For detailed information on the configuration, see manual 9499 040 49211.
With the unit configured accordingly, the alarm LEDs (AL1...AL3) are lit when an alarm is pending,
independent of whether the output is or is not connected. The software evaluation of alarms is also
independent of the hardware evaluation.
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