Model MMU-1600G Series Op Man - Ver 1.07.23 - Rev 20151026DL
Page 51 of 58
There are two fault indicators with dual function capability. One is the
CVM / WD
indicator. If the fault is a CVM fault, the
CVM / WD
indicator will be on solid. If the fault is a WD (External Watchdog) fault, the
CVM / WD
indicator will flash at
a five Hz rate. The other fault indicator with dual function capability is the
PRGM CARD
indicator. The
PRGM CARD
indicator will be on solid if the programming card is not properly seated while power is applied. The
PRGM CARD
indicator will flash at a five Hz rate if a Reno A&E supplied programming card which has a defective serial EEPROM is
inserted in the programming card slot and the device (the EEPROM) is activated. The
PRGM CARD
indicator will also
flash at a five Hz rate if a non-Reno A&E programming card is inserted in the programming card slot and the
Programming
Card Memory Usage
feature is activated.
Any monitoring function that is disabled for any reason will display a Function Disabled indication.
4.7.5 Function Disabled Indication
When a function has been disabled, the associated indicator will turn on for 50 milliseconds once every two seconds.
Functions may be disabled for one of several different reasons:
INDICATOR DISABLE CONDITION
TYPE 12
The monitor is configured to operate in Type 16 Only mode.
24V-1
The +24V Monitor Inhibit input (Connector A - Pin n) is at a logic TRUE (Low) state.
24V-2
The +24V Monitor Inhibit input (Connector A - Pin n) is at a logic TRUE (Low) state.
SHORT YEL
The Red Enable input (Connector B - Pin a) is below 70VAC.
SHORT CLR
The Red Enable input (Connector B - Pin a) is below 70VAC.
PORT 1 FAIL
The Port 1 Disable input (Port 1 Connector - Pin 10) is at 0 VDC.
Port 1 communications are not active during Type 12 operation.
FIELD CHK
The Port 1 Disable input (Port 1 Connector - Pin 10) is at 0 VDC.
The Red Enable input (Connector B - Pin a) is below 70VAC.
The LOAD SWITCH Flash bit is set to 1 in the Type 0 frame from the Controller Unit.
LOC FLASH
The monitor is configured to operate with the Disable Local Flash feature enabled.
RED FAIL
The Red Enable input (Connector B - Pin a) is below 70VAC.
The LOAD SWITCH Flash bit is set to 1 in the Type 0 frame from the Controller Unit.
DUAL IND
The Red Enable input (Connector B - Pin a) is below 70VAC.
4.8
AUDIBLE BUZZER
The monitor is equipped with an audible buzzer. This buzzer is used to bring important events to the attention of the user.
The buzzer can be disabled for pending configuration notifications only. This can be done through the RaeComM software
or via the front panel (See Section
4.6.2.1.7.9
).
4.8.1 Critical Failure
When the monitor main microprocessor is held in the reset state due to a critical hardware failure, the buzzer will stay on
constantly. There is no way to disable this indication, as it is an indication that the monitor is not operational.
4.8.2 Configuration Change
Configuration changes can originate from several sources. They are the front panel, the Com port, the Ethernet port, and the
program card. The monitor checks for configuration changes once each second. If a configuration change is identified, the
audible buzzer will start to beep at a one second rate. The one second beep is disabled when the user is currently in the fault
monitoring configuration on the front panel. This beeping is an indication that a change to the current configuration has been
identified and is pending. The monitor does not implement any configuration changes until the front panel
RESET
pushbutton is pressed and help for five seconds or Save Changes is confirmed in fault monitoring configuration on the front
panel. At that time the monitor will give 5 confirmation chirps and the buzzer will stop beeping. If the configuration
parameters that were changed are restored to their original states (undone), the buzzer will stop beeping.
NOTE: If power is removed from the monitor prior to the configuration changes being accepted by pressing the
RESET
pushbutton or Save Changes is confirmed in fault monitoring configuration on the front panel, the pending changes will be
lost and the original settings will be used on power up.
