Document: LT0439 Vigilant MX1-Au Operator Manual
Issue 1.73 23 October 2018 Page 12-17
This point is in fault if there is a fault at the RZDU. It will be
necessary to review the fault at the RZDU itself.
This point is in fault if the battery has failed at the RZDU.
This point is in fault if the charger is out of specification at the
RZDU.
This point is in fault if the RZDU has no mains supply.
This point is in fault if the RZDU has failed its self-test.
Value x is the RZDU number.
Indicates a short circuit on the left hand side of the MX Detector
Loop. The point state is Fault if a short circuit is detected
between the AL+ (J1-1) and AL- (J1-2) terminals, otherwise the
point is Normal.
Indicates a short circuit on the right hand side of the MX Detector
Loop. The point state is Fault if a short circuit is detected
between the AR+ (J1-3) and AR- (J1-4) terminals, otherwise the
point is Normal.
Indicates that an open circuit fault has been detected on the MX
Detector Loop. The point state is Fault if an open circuit is
detected on either the +ve wire or the -ve wire, otherwise the
point is Normal.
This point indicates an over-current fault on the MX Detector
Loop. The point state goes to Fault while an MX Loop overload
induced reset takes place and also if there have been 5 of these
resets within the preceding 5 minutes, otherwise the point is
Normal.
Indicates an MX Polling loop rate fault condition. A fault state on
this point occurs when the MX1 is unable to communicate with
the MX loop devices quickly enough, which may affect correct
operation of detectors and modules. The fault condition will
remain for 30 minutes from when the MX1 becomes able to
communicate quickly enough. The fault condition can also be
cleared by resetting this point – if the fault condition remains the
point will re-enter the fault condition within a short period of time.
Display AL Relay status (open/close).
Loop x Right Relay
Status
Display AR Relay status (open/close).
Loop x
Communication
Status
Indicates whether the loop card is operating or not.
“Normal” = operating
“Fault” = not operating, or disconnected, or plugged into the
wrong port.
The result of comparing the Expected and Actual CRC of the
Loop Card Flash Memory - “Normal” or “Fault”
The result of the most recent RAM test on the Loop Card -
“Normal” = passed
“Fault” = failed
Active when infrared mode is enabled for MX loop x. Places the
MX1 into the off-normal state.
The above points are repeated for each configured MX Loop Card.
Equipment
245
– Additional
Loop Cards