Manuale d’uso / di manutenzione del prodotto FT-10 del fabbricante Bacharach
Vai alla pagina of 18
1 of 18 3015-4568 Revision 0 9/11/03 Installation Guide Bacharach HGM300 to LonWorks FT-10 Communications Adapter Introduction The Bacharach HGM300 to LonWorks Comm unications Adapter enables an HGM300 Refrigerant Monitor to communicate with a LonWorks FT-10 Free Topology network.
2 of 18 front side of the door. Position the adap ter board over the s tandoffs mounted on the HGM door. Install the five remaining 6- 32 screws through the board and into the standoffs and tighten. Connect power wiring from the HGM300’s 120V Auxiliary Power term inal block to the adapter board’s POWER terminal block.
3 of 18 If an RDM800 remote display IS to be used w ith the adapter, refer to Figure 3 for wiring details. Note that when the RDM800 is used, TWO RS-485 cables must be run betw een the HGM300 and RDM800, so plan accordingly.
4 of 18.
5 of 18 Setting HGM Communication Address On Adapter See Figure 4 for the location of adapter dipswitch ‘A’. Switches 5-8 on the adapter’s ‘A ’ dipswitch are used to matc h the node address set on the HGM’s address dipswitch (on HGM main boa rd).
6 of 18.
7 of 18 Configuring the HGM300 with RDM800 or Laptop PC The only HGM parameters that are cha ngeable through LonWorks are the alarm thresholds. Configuring the HGM for refriger ant type and length of tubing for each zone (zero length to disable a zone ) must be done with the RDM800 remote display or a laptop PC.
8 of 18 HGM Alarm Acknowledge Options Two alarm acknowledge options are s upported—Auto Acknowledge and Network Acknowledge. In the Auto Acknowledge mode, the HGM will clear its alarm outputs the next tim e the alarmed zone is sampled and its PP M has dropped below the alarm thresholds.
9 of 18 LonWorks Objects and Network Variables The adapter contains one Node Object, sixteen Zone Objects, one Ge neral Status Object, and one Alarm Control Object.
10 of 18 Network output variable nvoStatus returns the information requested by nviRequest. The status response will indicate the status of the object that received the request. The status bits supported are list ed above under RQ_REPORT_MASK. One nvoStatus response will be returned for each nviRequest.
11 of 18 Objects 1-16 – Zone Objects There is one Zone Object for each sampling zone in the HGM300 (16 total): Network output variable nvoHgmZonePPM shows the m easured gas concentration for a particular zone.
12 of 18 CRITICAL FAULT Some critical fault pr events normal zone PPM m easurement. (View nvoHgmFaults for details on fault type) HGM BUSY Occurs with RDM800 insta lled when certain scr eens are displayed. COMM FAULT 1 Comm failure between HGM and adapter.
13 of 18 Object 17 – General Status Objec t The General Status Object provides info rmation about any HGM300 internal faults present and shows which zone is currently being sampled: Network output variable nvoHgmFaultAlert reports whenever ANY fault is detected within the HGM or adapter.
14 of 18 HGM Busy (if RDM800 attached a nd showing certain screens)(bit 4) Comm Fault 1 (communications fail ed between HGM and adapter)(bit 3) Comm Fault 2 (internal communicati ons failed within ada.
15 of 18 Object 18 – Alarm Control Object The Alarm Control Object provides information about any alarm s which are present in the HGM. It also provides mechanisms fo r acknowledging alarm s, and fo.
16 of 18 Network input variable nviSetZoneThresh allows Leak, Spill, and Eva cuate alarm thresholds (in PPM) to be set for each m onitoring zone. nviSetZoneThresh has four parameters to be set by the .
17 of 18 Network output variable nvoHgmZoneThresh displays the following in formation for the zone specified by nviGetZoneThresh: 1. Zone (1-16) whose alarm th resholds are being displayed 2. Leak Alarm Threshold in PPM (0-65535) 3. Spill Alarm Threshold in PPM (0-65535) 4.
18 of 18 LED 1 and LED 2 will normally show activ ity about every 15 seconds. Since the refrigerant monitoring process is fairly slow and new data is only available every 15 seconds or so, the adapter po lls the HGM at a slow rate to reduce the com munications burden on the HGM main processor.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Bacharach FT-10 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Bacharach FT-10 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Bacharach FT-10 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Bacharach FT-10 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Bacharach FT-10, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Bacharach FT-10.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Bacharach FT-10. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Bacharach FT-10 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
