55
MORNINGSTAR
CORPORATION
6.2 Protections
The Relay Driver is fully protected against system faults listed
below. Recovery is automatic for short circuits. Channel
overloads are current-limited. Refer to section 6.1 for fault LED
indications.
•
Reverse polarity – Relay Driver power
•
Reverse polarity – Channel input voltage, all 4
channels
•
Short circuit and overload – all 4 channels
6.3 Maintenance
The Relay Driver is designed to run automatically without the
need for user intervention. However, the operator should
perform the following tasks annually to ensure continued
operation:
Verify that the LEDs indicate normal operation.
Tighten all terminal connections. Check for corrosion or loose
connections
Check the Relay Driver power source. Verify that the source
voltage is within the recommended voltage window (8 – 68Vdc)
Inspect the communications cables for loose connections (if
applicable)
Inspect for signs of nesting insects
Summary of Contents for RelayDriver
Page 9: ......