16
External Self-Diagnosis Test: Wiring Diagram
Terminal
485-
External Self-Diagnosis Connection
Connection
TB2
External self diagnosis signal line
Operating Signal: Same level of Signal with 24V-_IN
Operating Delayed Time: 5 Seconds
Operating Continuous Time: Operating delayed time + 10 sec.
Normal
Result Signal
Fault
Normal output for all signals
- Fault Relay output (De-Energized)
- 2mA (0.5mA): Self-test error signal
- Orange LED blinking (1Hz)
- Response of communication self-test fault signal
[Figure 13] External self-test wiring diagram
SafeFlame Installation and Operation Manual
1. Use ½” NPT-14 or M20x1.5 conduit connection or suitable explosion-proof gland to
assemble the cable and conduit to the detector
2. When using conduit connection for division installation, conduit seals must be
withing 18 inches (450mm) from the enclosure
3. When using conduit connection for ATEX installation, conduit seals must be placed
at enclosure
4. Install the conduit including drain holes facing downward to avoid water
condensation in the detector
3.4.2
Conduit Installation
CONTROLLER
Ground Connection
For proper operation of the detector the SafeFlame must be grounded through a wire to
the chassis. Failure to establish a ground connection can lead to greater susceptibility
of the detector to power surges, electromagnetic interference, and ultimately damage
to the detector.
External Grounding- Connect ground wire to right side of enclosure.
(Publication#: MA-SF200OM)
