When trying to leave engineer mode keypad says:

 

CHECKING FOR TAMPERS

1 mod tampers

KEYPAD 010

 

So I can´t leave engineer mode.

There is no battery installed in central panel.

 

Connection is: RIO (nothing connected yet) - Central Panel - Keypad MK8 - RIO (with 1 detector)

 

1. What is wrong?

 

2. Maual says 10 Ah and 17 Ah battery. Is it ok tu usa a 7 Ah battery?

I removed RIO with detector, so Keypad MK8 became in the end of the daisy chain.

The keypad error disappeared.

But I think it was the tamper in the keypad that was the fault.

 

Or must the keypad be in the end of the daisy chain?

 

Now there is a power fault, so I better get a battery.

The keypad can be anywhere in the chain.  It's most likely that the keypad is/was not closed properly and tamper switch on the PCB is not being closed.

 

Battery requirements are based on system loading. You'll likely be fine with a 7ah battery if your system doesn't have lots of powered devices.

You where right, the keypad was not closed. Thanks!