KL4011, KL4012, KL4021, KL4022 | 1-, 2-channel analog output terminals 0/4…20 mA

The KL4011, KL4012, KL4021 and KL4022 analog output terminals generate analog output signals in the range from 0/4 to 20 mA. The power is supplied to the process level with a resolution of 12 bits and is electrically isolated. Ground potential for the output channels of a Bus Terminal is common with the 24 V DC supply. The output stages are powered by the 24 V supply. The KL4011 and KL4021 are the single-channel variants. The KL4012 and KL4022 versions combine two channels in one housing. The run LEDs give an indication of the data exchange with the Bus Coupler.

Technical data	KL4011 \| KS4011	KL4012 \| KS4012	KL4021 \| KS4021	KL4022 \| KS4022
Number of outputs	1	2	1	2
Power supply	24 V DC via the power contacts (alternative 15 V DC with Bus Terminal KL9515)
Signal current	0…20 mA	0…20 mA	4…20 mA	4…20 mA
Load	< 500 Ω
Measuring error	±0.5 LSB linearity error, ±0.5 LSB offset error, ±0.1 % (relative to full scale value)
Resolution	12 bits
Conversion time	~ 1.5 ms
Electrical isolation	500 Vrms (K-bus/signal voltage)
Current consumption K-bus	typ. 60 mA
Bit width in the process image	output: 1 x 16 bit data (1 x 8 bit control/status optional)	output: 2 x 16 bit data (2 x 8 bit control/status optional)	output: 1 x 16 bit data (1 x 8 bit control/status optional)	output: 2 x 16 bit data (2 x 8 bit control/status optional)
Configuration	no address or configuration setting
Weight	approx. 80 g
Operating/storage temperature	0…+55 °C/-25…+85 °C
Relative humidity	95 %, no condensation
Vibration/shock resistance	conforms to EN 60068-2-6/EN 60068-2-27/29
EMC immunity/emission	conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos.	IP 20/variable
Pluggable wiring	for all KSxxxx Bus Terminals

Special terminals
KL4012-0010	Siemens S5 format
KL4012-0011	altered range: 0…21.5 mA, maximum value corresponds to 21.5 mA instead of 20 mA
KL4012-0050	Siemens S7 format
KL4022-0010	Siemens S5 format
KL4022-0050	Siemens S7 format