4. FAQ – 10 Common Questions (QA format)

Q1: What exactly does the 3500/93 135799‑01 Display Interface Module display?
A1: It displays system event lists, alarm event lists, module and channel data, Keyphasor and tachometer data; basically all status and measurement information that resides in the 3500 rack pertinent to machinery protection.

Q2: How many displays can be connected to one 3500 rack using this module?
A2: Up to two displays per rack are supported. Each display requires its own Display Interface Module slot.

Q3: What are the mounting options for the display and display interface?
A3: The display can be face‑mounted directly on the front of the 3500 rack, mounted in a 19‑inch EIA rack, panel mounted, or mounted independently (e.g., on a wall or panel).

Q4: What are its dimensions and weight?
A4: The module measures about 263 × 58 × 28 mm and weighs approximately 0.8 kg.

Q5: What are its operating and storage temperature ranges?
A5: It operates approximately between ‑30 °C to +65 °C, with storage down to about ‑40 °C up to +85 °C.

Q6: How much power does it consume?
A6: Combined Display + Interface can draw up to ~15.5 watts; display alone (for certain display unit variants) may draw ~5.6 W or ~12.0 W depending on unit.

Q7: Is it compliant with any industrial standards?
A7: Yes, it is designed to meet requirements such as API Standard 670 (machinery protection) for reliability, visibility, and safety.

Q8: What happens if this display module fails? Does it affect machinery protection?
A8: If the display or interface fails, you lose visual feedback locally/remote of status and alarms, but the core protection mechanisms in the 3500 rack modules (alarms, shutdowns, relays) continue to operate if they are otherwise unaffected.

Q9: Can it be used in harsh environments (e.g. high humidity, dust, vibration)?
A9: Yes, the module is built for industrial/harsher conditions. Specified humidity up to ~95% non‑condensing, and environmental tolerances typical for protection equipment. But mounting, enclosure, environmental sealing should be considered in design.

Q10: How is configuration done?
A10: Using the 3500 Rack Configuration Software you set up what events, channels, alarm thresholds etc. are visible via the interface, and set display and interface settings. Communication between DIM and Display via front or rear rack I/O as required.