Ttp11: Point Trouble And D8128C Or D8128D Octopopits Are Connected To The Control Panel - Bosch D9412GV2 Troubleshooting Manual

D9412GV2/D7412GV2 | Troubleshooting Guide | 3.0
TTP11: Point Trouble and D8128C or
D8128D OctoPOPITs Are
Connected to the Control Panel
Procedure
Do any points on the OctoPOPITs appear as "missing"?
Do ALL points appear as "shorted"?
1. Select a point connected to the D8128C
or D8128D that is in trouble.
2. Using RPS or your D5200 Programmer,
go into Point Assignments for the point
you are troubleshooting and determine
which point index the point is using.
3. View that point index to determine the
type and point response (for more
information, refer to
Is the point programmed to respond as
desired?
Fix the programming problem.
For the affected point, set your digital voltmeter
(DVM) to read VDC. Connect the red DVM
lead to the + side of the point. Connect black
DVM lead to the common side of the point.
Does the DVM read <2.0 or > 3.0 VDC?
Read the voltage on all remaining zones
on the OctoPOPIT.
Do all voltages read between 0 VDC
and 5 VDC?
•
•
Replace the OctoPOPIT.
A B C
26
Table 16 on page 28).
If any voltage reads >8 VDC,
remove the wires that are
connected to that
addressable point. View point
status again for the off-board
point that was in trouble. If it
shows anything other than
NORMAL, replace the
OctoPOPIT.
If the point status shows
NORMAL, refer to TTP50
Unexpected Voltage on On-
board Point Wiring on page
108 to locate the source of
the >8 VDC.
Troubleshooting
A B C
Remove all wires from the addressable point.
Set your DVM to read resistance. Connect the
red DVM lead to one conductor and the black
DVM lead to the other conductor.
Does it read <900 Ω or >1.1 kΩ?
Connect a 1 kΩ resistor to the
addressable point. Repeat the voltage
check.
Does the DVM still read <2.0 VDC or >
3.0 VDC?
Replace OctoPOPIT.
• If the resistance was <900 Ω, refer to
TTP46 Shorted Wiring
•
If the resistance was >1.1 kΩ, refer to
TTP47 Open Wiring
Set your digital voltmeter (DVM) to read resistance.
Disconnect the zonex wires leading to the D8128C or
D8128D. Connect the red DVM lead to one conductor
and the black DVM lead to the other conductor.
•
If the resistance reads as an open, refer to
Wire Shorted to Ground
•
If the resistance reads anything other than an
open, refer to
page 98.
Do any of the OctoPOPITs with missing points also have
working points?
Is the OctoPOPIT addressed correctly for the
desired zones and, if the OctoPOPIT is a D8128D,
are the point DIP switches configured to turn the
desired zones ON (refer to
Fix OctoPOPIT addressing and, if necessary,
D8128D OctoPOPIT Point DIP switch settings.
D E
Bosch Security Systems, Inc. | 11/05 | F01U011024B
With the affected point's wires still
disconnected from the control
panel, perform a VDC and VAC
voltage check on the wires leading
to the point.
• If the voltage = 0 VAC and 0
VDC, refer to TTP49 Wire
Shorted to Ground on
page 106.
• If the voltage is not 0 VAC and
0 VDC, refer to TTP50
Unexpected Voltage on On-
board Point Wiring on
page 108.
on page 98.
on page 100.
on page 106.
TTP46 Shorted Wiring on
Figure 15 on page 27)?
TTP49