Robur Direct Digital Controller User Manual

Direct Digital Controller
152 Direct Digital Controller fw 4.013 – Ed. 01/2013
E 1019
DHW valve mismatch (configuration mismatch on DHW valve RB100 (or RB200))
The error is generated in the event that another device with the same ID is configured on the communication
network.
This error does not halt the system
E 1020
DHW Valve off-line (DHW valve RB100 or RB200 is off-line)
This error occurs if the communication between the DDC and the DHW Valve RB100/RB200 is interrupted
(connection problems, power supply not present for the RB100/RB200, etc.).
The error may also be generated when updating the RB100/RB200 and/or reconfiguring the module managing
the DHW valve, not followed by a new "machine configuration" on the DDC.
The error halts the system (the generators are switched off). The error clears off in the event of a
communication reset or completion of the configuration, depending on the cause which generated it.
E 1021
Timeout of DHW valve
To be generated, this error required that a valve making use of auxiliary limit switch contacts is configured.
The error appears when the time taken by the valve to switch over from one operating mode to the other
exceeds the “Max. switching-over time” set in the “Sep. Valve Param.".
E 1022
DHW
valve position error
This error appears in at least one of the following conditions: limit switch contacts closed on the opposite side
to the position they should have; both limit switches are closed; both limit switches are open.
W 1025
External Temperature Probe absent (or broken)
This warning is given only for systems whose Consents Configuration envisions the use of Climatic
Curve Function and/or the ExtT consent (consent based on the external temperature).If the
external environment temperature probe connected to DDC is absent or broken. Because the
machine also has an external environment probe, in the presence of this warning the DDC
continues to function and also the Climatic Curve Function and/or the ExtT consent remain active.
The average values detected by the probes on the machine are used as the external temperature
value. However, if an external temperature probe is installed connected to the DDC, it is good
practice to intervene to solve the problem, as the detection based on the probes on the machine is
normally less accurate (due to exposure to the sun for example and of the same effect of the heat
generated by the machines).
E 1026
ID PDC Conflict
This error is generated only on systems managed by several DDC, if two or more DDC have been configured
on the same ID
W 1027
GAHP water T limit
The event indicates that at least one heat pump has reached the maximum temperature, if the delivery
temperature is lower than the set threshold.
Assuming that the threshold is correctly set, this warning indicates that, in a plant with heat pumps and boilers,
the GAHP heat pumps are substituted by the boilers earlier than foreseen.
E 1028
Third P Mach Error (Third Party Machine Error)
This error indicates a generic alarm status on a third party unit; it is generated for a specific heating or cooling
module ID on a third party unit (boiler or chiller) managed via the RB200 device, if this has an error control
function. The error clears when the third party unit alarm condition is reset.
E 1029
OFF: Base Man Prb Er (Base Plant Part Manifold Temperature Probe Error)
This error is generated if the manifold probe (delivery or return), used to regulate the base plant part and
managed by an RB200 device, is unusable (malfunction or off-line). When using the progressive complement
and substitution mode, the error is generated if the problem concerns the other manifold probe or the probe on
the GAHP unit return manifold.
The error halts the system (the generators are switched off), and clears when the cause generating it has
been removed.
The error occurs if the off-line or malfunction error on one or more corresponding probes persists for 1 minute.
The error clears when the corresponding off-line or malfunction errors are no longer present for at least 1
minute.
E 1030
OFF: Sep Man Prb Er (Separable Plant Part Manifold Temperature Probe Error)
This error is generated if the manifold probe (delivery or return), used to regulate the separable plant part and

Robur Direct Digital Controller Specifications

General

Brand	Robur
Model	Direct Digital Controller
Category	Controller
Language	English