Pacific Research Solutions PET-820 - Manual (Page 55)

Pacific Research PET-820 User Manual
Page 54
TROUBLESHOOTING
7.0 STANDARD TROUBLESHOOTING
This section provides procedures to solve some common problems that may occur with the PET-820.
PROBLEM SOLUTION
Operate LED flashing The program is not running, this will occur because of low AC line voltage or low battery
voltage, the PET-820 should operate down to 90 Volts AC. If the unit has adequate voltage,
there may be some type of hardware failure.
Unit answer, Dose not
except the Password The unit is not recognizing the Password that is being sent, this can occur because of an error in
sending the Password or the system Password was accidentally changed. In order to get to a
known Password the system EEPROM will need to be re-initialized, see programming command
code "81". When initializing the EEPROM all prior changes to the system characteristic will be
lost.
Unit detect ring, tries to
answer and then
communication is lost The connection to the telephone line may be to the wrong terminals, reference the installation
section of manual.
Unit dose not answer. Make sure that the status LED is flashing red during ringing, if not then check the telephone
connections. Make sure that the program switch is on and wait for a minimum of 16 rings.
Once the unit has answered then check the ring counter value, program command code "27",
and reset to a desired value.
Unit dose not respond to
an alarm input. One of the inputs may be turned off or improperly configured, check there status, operate
command code "04". Also check there configuration, programming command codes "30"
through "36".
Alarm or sign on
message confusing or
incorrect. This may occur due to the message assignments or bad data in the RAM. First check the
messages and their assignments, programming command codes "24" through "26". If the
message data is bad, you can reset to the factory default data by using programming code "80".
Unit responds to false
alarms. Re-evaluate the loop response timer values and the type sensor that are connected to each loop,
you may try to increases the loop response time in order to ignore unwanted contact closures.
7.1 ANALOG INPUT OPTION TROUBLESHOOTING
This section provides procedures to solve some common problems that may occur with the PET-820.
PROBLEM SOLUTION
Unit does not respond to
an alarm input. One of the inputs may be turned off or improperly configured. Check their status with
programming command codes "70" through "77".
Alarm or sign on
message confusing or
incorrect. This may occur due to the message assignments or bad data in the RAM. First, check the
messages and their assignments (programming command codes "24", "26", and "76"). If the
message data is bad, you can reset to the factory default data by using programming code "80".
Unit responds to false. Re-evaluate the integrate rate values and the type of sensors that are connected to each input, you
may try to increases the integrate rate in order to ignore unwanted noise.