Warning
Hazard of Electric Shock: Remove all power from all devices before removing any covers or doors of the system. Disconnect power at the device and at the power source.
Electrostatic Discharge Required: Always discharge static electricity from your person by touching metal prior to handling any hardware. Failure to do so may result in damage to devices.
Issue
There is an alarm showing after adding a downstream controller
Product Line
EcoStruxure Access Expert
Environment
Access Expert Hosted V3
Cause
Instructions needed to eliminate the power failure and tamper alarms showing on newly added downstream devices
Resolution
When adding downstream devices, for example, An MR50, MR52 or MR16In/Out to an SSC, EP1501 or EP1502 controller, an alarm may show in the hardware tree.
To get the controller out of this state, the following steps need to be taken:
- a. Locate the terminal block(TB) on the panel which contains the connections for
CT (Cabinet Tamper) and BA (Power Fault)
Note: You may need to consult the specific controller documentation since the TB# with these connections are different on each board.
It will look similar to the following:
b. Remove the connector - Cut two small pieces of wire, one for each Alarm
- Use the 2 wires to jumper each connection (CT and BA) to create a closed circuit.
This assumes these contacts are not being used for their usual purpose.
No resistors are required - Place the connector back on the board
The downstream devices no longer show alarms for the respective addresses.
