Emerson Dixell XRB - Digital Outputs; Compressor Output; Defrost Output; Evaporator Fan Output

1592038420 XRB30-60-70-77CH EN v1.1 2021.09.15 XRB 29/38
n4H
Number of activations for relay output oA4 (thousands of)
n4L
Number of activations for relay output oA4 (units of)
n7d
Number of daily activations of digital input 1
n7H
Number of total activations of digital input 1 (thousands of)
n7L
Number of total activations of digital input 1 (units of)
n8d
Number of daily activations of digital input 2
n8H
Number of total activations of digital input 2 (thousands of)
n8L
Number of total activations of digital input 2 (units of)
In this way it is possible to monitor the application and discovering bad functioning that could lead to
damages. All counters are saved into memory every hour. It is possible to reset them by using par. rSd
(reset daily counters) and rSC (reset total counters).
16. DIGITAL OUTPUTS
Depending on the model, one or more digital outputs (relays) can be configurated with one of the following
functionalities.
16.1 COMPRESSOR OUTPUT (oAx = CP1)
With oAx=CP1 the relay operates as the main regulation output.
16.2 DEFROST OUTPUT (oAx = dEF)
With oAx=dEF the relay operates as a defrost output.
16.3 EVAPORATOR FAN OUTPUT (oAx = FAn)
With oAx=FAn the relay operates as an evaporator fan output.
16.4 ALARM OUTPUT (oAx = ALr)
With oAx=ALr the output operates as an alarm output. It is activated every time an alarm happens. Its status
depends on the tbA parameter: if tbA=Y, the output is deactivated by pressing any key.
If tbA=n, the alarm output stays on until the alarm condition recovers.
16.5 LIGHT OUTPUT (oAx = LiG)
With oAx=LiG the relay operates as a light output.
16.6 AUXILIARY OUTPUT (oAx = AUS)
The auxiliary output can be managed by digital inputs (oAx=AUS, i1F or i2F=AUS): the output is switched
on and off following the relative digital input status.
16.6.1 AUXILIARY REGULATOR
The auxiliary regulator can be used to manage the auxiliary output. Here are the involved parameters:
- ACH: type of regulation for the auxiliary relay: Ht = heating; CL = cooling
- SAA: set point for auxiliary relay
- SHY: auxiliary relay differential
- ArP: probe for auxiliary relay
- Sdd: auxiliary output off during defrost
16.6.2 TIMED ACTIVATION
The following parameters can be used to define fixed activation and deactivation intervals.
- btA: base time for auxiliary output activation and deactivation intervals
- Ato: auxiliary activation interval
- AtF: auxiliary deactivation interval
16.6.3 GENERAL NOTES
if oAx=AUS and ArP=nP (no probe for auxiliary digital output) the AUX output can be managed:
- By digital input if i1F=AUS or i2F=AUS
- By auxiliary button (if set as AUS)
- By serial command (Modbus protocol)
- By fixed interval of time if Ato>0 and AtF>0 (if Ato=0 or AtF=0 the auxiliary output is disabled)