Assortment / System Description

19
Control of an actuator via positioning signal (3-pos.) (RLU202 and RLU222).
External load signal (controller only used as an analog/3-position converter).
Conversion of a passive measured value signal to an active signal for further use
by other controllers.
Control of a variable multistage aggregate with step switch STEP V1, V2.
Maximum 6 stages, 1 modulating output. Switching on/off points of each stage can
be individually adjusted. Adjustable delay times. External load signal configurable
(controller used as a step switch only). Modulating output with minimum and
maximum position. Output signal invertible (not possible with RLU220).
Control of a linear multistage aggregate by step switch STEPLIN. Maximum 6
stages, 1 modulating output. Switching on/off points ready assigned to the loads.
Adjustable delay times and priority changeover. External load signal configurable
(controller used as a step switch only). Modulating output with minimum and
maximum position. Output signal invertible (only with RLU232 and RLU236).
Control of a binary multistage aggregate by step switch STEPBIN. Maximum 4
relays for switching 15 loads, 1 modulating output. Fixed switching on/off points
with binary logic. Adjustable delay times. External load signal configurable
(controller used as a step switch only). Modulating output with minimum and
maximum position. Output signal invertable (only with RLU232 and RLU236).
When engineering the plant, the only decision to be made is whether the controller
is for use in a ventilation plant or as a universal controller for a temperature,
humidity or pressure control loop.
For efficient engineering of plants operating with Synco 200, Siemens’ HIT is
available www.siemens.com/HIT
(see page 87).
Using the operating buttons or the OCI700.1 service tool (all RLU.. controllers have
a connection facility for the tool), commissioning is effected as follows:
• Programmed application: Use menu APPL ID to enter the number of the
programmed application (e.g. A01). This activates automatically the application
with all the required inputs and outputs, functions and parameters; all
parameters not required will be deactivated
• Modifying the programmed application: Configure nonassigned inputs and
outputs
• Free configuration: Use menu APPL ID to enter basic type A or B according to
plant-specific requirements. This enables the empty application with the
respective basic functions
RLU202 RLU220 RLU222 RLU232 RLU236
Programmed applications 18 28 48 22 32
Basic type A, ventilation plants (A = air) 1 1 1 1 1
Basic type U, universal controller 1 1 1 1 1
Positioning signal
(3-position)
Conversion
passive to active signal
Step switches
Engineering
Commissioning
Applications
and basic types