Applications Manual FHP560 Controller
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Bosch Thermotechnology Corp.
Data subject to change
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16 Troubleshooting
16.1 FHP560 Troubleshooting
Most technical issues regarding the FHP560 may be resolved by following these steps:
1. Ensure the jumpers located in the cut-out of the controller are set correctly:
a. IN-1/IN-2 jumpers are used to assign Dry/Therm or 0-5Vdc status per input and should be set accordingly.
b. The communications selection jumper must be in the top position for all jobs, except when BACnet over ARC156 is used.
2. Ensure DIP switches are set properly to match the communication protocol (Lon, N2, Modbus, BACnet over MS/TP) and baud rates. Jobs
networking over Lon must include the Lon Card (purchased separately).
3. Ensure rotary dials on a network are unique and set properly; 10’s digit using top dial, 1’s digit using bottom dial.
4. Ensure all wiring is secure and up to code per the wiring diagram(s) and speci
fi
cations.
5. If the software becomes corrupted the controller may be reset to the last saved/archived version by performing the following:
a. Remove the 24Vac power from the controller
b. Pull the 3V CR2032 onboard battery from the controller
c. Replace the onboard battery after approx 10 seconds
d. Reconnect the unit 24Vac power
16.2 ZS Sensors Troubleshooting
The following technical issues may be resolved as described below when using ZS sensors:
ZS sensor troubleshooting
If the display shows:
Then:
Nothing
The sensor has no power. Verify 24Vac power to the controller and 12Vdc power to the sensor.
The sensor is not communicating with the network. Verify the following:
Addressing setup may be incorrect. The DIP switches at the back of the sensor must be set to 1 if
connecting only one sensor to the controller, or 1 through 5 in sequential order if daisy-chaining multiple
sensors to the controller.
Wiring connections may be inaccurate. Verify sensor is wired as specified on pages 38 and 39 of this
document, and that all conductors are secure and continuous.
The FHP560 controller software may be corrupted. Verify controller operating status and perform battery
reset if needed.
Control program may not support ZS Sensors. Use a BACview interface to verify that software version for
FHP560 controller is 7.05.XX (where XX is 03 for the standard version, i.e. 7.05.03).
Characters that seem out of place or jumbled
The sensor has a memory problem. Try formatting the sensor per the instructions provided in this document
(see page 38).
Bogus values (-999) displayed for RH and/or
CO
₂
The sensor hardware is not set up to read RH and/or CO
₂
values. Perform the following steps to omit bogus values
from the sensor screen:
If connecting sensor to the controller for the very first time, ensure that the sensor is connected to the
controller R-net port then apply power (24Vac) to the controller.
Configuration to eliminate bogus values begins and is completed approximately 45 seconds later.
With sensor still connected to the controller, remove the unit 24Vac power from the controller for about 5
seconds, and then reconnect power.
Table 52
