Cooper Security M2000 Guía de usuario descargar pdf (Pagina 156)

Engineer Menu 2-9 Engineering Manual

148

5. TROUBLESHOOTING

Frequently Asked Questions

This chapter provides answers to frequently asked questions. You may find this chapter useful

for troubleshooting purposes.

I've forgotten the engineer code. How do I reset it?

With power to the control unit already applied, momentarily short the FACTORY RESTART

terminals on the PCB.

Note: If an installer has locked the NVM then this procedure will not

restore the engineer access code.

The manager code (user 1) has been forgotten. How do I reset it?

Use option 2-7-3-7 (page 131).

How do I delete users?

Set the user type in User option 2-4 to "Not in use".

Alternatively, you can delete by selecting User Codes in option 2-7-3-8 (page 132).

This also defaults the engineer and user 1 passcode.

Why is a keypad wired to an MSNode not being recognised?

You may have wired the keypad while power was still applied to the MSNode (not

recommended). Remove then reconnect the power from the MSNode, then log back in as

an engineer. You should now find that the keypad is recognised.

Why is a keypad or other device not responding correctly?

Try the following:

1. Make sure that no two devices on the same network have the same address.

2. Check the voltage at all points of the network across the A (+) and B (-) terminals; the

voltage should be at least 12V. If the voltage is low, follow the suggestions described

on pages 13 to 14. If an external power supply is used, follow the advice given on

page 14.

Note: If you are going to install an external power supply make sure that it has a “floating zero

volts rail” (the MSPSU has this feature).

3. Check for an earth fault: Switch on the mains supply and measure the DC voltage

between the mains earth connection and the AUX +12V terminal. Caution: Do not

make contact with mains live or neutral! Then measure the DC voltage between the

mains earth connection and 0V. In both cases, the measurement should be 1V or less.

If the voltage is greater than 1V, the system has an "Earth Fault" and you should check

all cables for isolation to earth. You can do this by disconnecting cables or cores from

the control unit one at a time and re-measuring the voltage until the fault is located.

1 2 ... 151 152 153 154 155 156 157 158 159 160 161 ... 179 180

Sin comentarios

Cooper Security M2000 Guía de usuario Pagina 156