West Control Solutions KS 800 Operating Instructions - Manual (Page 20)

Multi-Temperature-Controller KS 800
OUT17...OUT19 3 outputs for alarms. The alarm allocation to the three outputs is confi-
gurable.
Unused outputs cannot be switched off individually. These outputs go to the status which is defined
in the KS 800 configuration. The inputs of these unused controllers must be short-circuited (see
also section 5).
Because of the variety of KS 800 configurations, note that:
The KS 800 options can be limited by the controller configuration.
With KS 800 configuration as two-point controller, all unused inputs/outputs are available for the
option.
With KS 800 configured as three-point controller (heating/cooling) or as three-point stepping control-
ler, 16 output are required with eight control loops, i.e. several options are not possible.
6.2 Controller outputs, continuous
The continuous controller terminals are accessible from the bottom through a cut-out in the
aluminium profile. Two 8-pin connectors must be used for connection.
The type of continuous outputs (voltage or current) is dependent of the KS 800 type (see section
2.1 Versions) and cannot be changed.
The current output, dead-zero (0mA) or live-zero (4mA), is adjustable via software.
Current output
0/4...20mA
Voltage output 0...10V
Range 0...20mA / 4...20mA 0...10V
Accurcy typ.
±
0,2%
±
1 digit typ.
±
2 digits
Resolution 9 bits 9 bits
Load max. 470
Ω
min. 6 k
Ω
Settling time max. 625 ms max. 625 ms
Overload pro-
tection up to ---- 1 ) short circuit proof
1 ) With low load resistances, the most important part of the power is converted (into heat) in KS800
itself, which implies a risk of instrument overheating, especially with high ambient temperatures.
With all eight controllers configured as current outputs, the load resistances should not be lower
than 250
Ω
.
6.2.1 Analog output allocation
There are 2 modes of analog output allocation to the hardware outputs:
1. Up to instrument number 8396 (Dec. 2001) operating version 4:
Continuous outputs cannot be allocated firmly to the controllers and thus to the terminals. The order
of allocation is as with controller configuration with analog outputs.
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