Bosch K2200 Series Guía de instalación descargar pdf (Pagina 54)

K2200 Series | Installation Guide | 7.0 Troubleshooting EN | 54

Bosch Security Systems | 7/03 | 17375 1.3 / 46513C

7. Connect the reader to another channel, if the

reader now operates, the original channel is

faulty. Arrange for the door controller to be

repaired. Go to step 10.

8. Disconnect the suspect reader. Disconnect the

reader connector at the door controller. Check

the cable for short circuits between all

conductors, and all conductors and ground.

9. If the cable is to the correct gauge and free from

short circuits, connect the known working reader

in place of the suspect reader. If this reader

operates, the original is faulty. Arrange for a

replacement with your supplier.

10. Repeat for all four (two on a Readykey

K2200)

reader channels.

7.1.4 Checking the Lock Output

If all the reader channels are shown to operate

correctly, you should check the lock outputs. You

should know whether the lock is fail-safe (power is

removed to operate the device) or fail-secure (power

is applied to operate the device. You should also

know whether the door controller has been set to

provide 12 VDC or 24 VDC. If interlock has been

set on a pair of readers, channels 1 and 4 will operate

lock output 1, and channels 2 and 3 will operate lock

output 2.

1. For each lock output:

Make sure that the door secure, that is, the door

controller display should not indicate that the

door is open.

Make sure a lock release time has been set, it

should be at least 5 seconds to allow

measurements to be reliably made.

Establish whether lock sharing has been set.

2. Check the voltage at the lock output (L-, L+) on

the controller. This should be 12 VDC or 24

VDC if the lock is fail-safe, or less than 0.5

VDC if it is fail-secure. (The Readykey

K2200

series has solid state lock outputs, these will not

show exactly 0 volts when off).

3. Operate the lock, operate the RTE or short the

DR2 reader input to GND. The lock output

should operate. Check the voltage at the lock

output. This should now show the reverse of the

previous measurement, i.e. less than 0.5 VDC for

fail-safe, 12 VDC or 24 VDC for fail-secure. If

not, suspect the lock output to be faulty.

4. Repeat steps 2 and 3 above but this time

measure the voltage at the lock. The lock should

receive the minimum voltage required for it to

operate (see the lock manufacturer's

specifications). If the voltage is too low at the

lock, the lock supply cable gauge may be too

small for the distance from the controller.

5. Disconnect the cable from the lock. Check the

cable for short circuits between the conductors,

and between the conductors and ground.

6. Ensure there is a Metal-Oxide Varistor (MOV)

fitted across the lock terminals. If large currents

are used (i.e. >1 A) use the large MOV supplied

with the door controller. If small currents are

used (i.e. <1 A) use the small MOV supplied

with the reader. Reconnect the lock.

7. Check the current drawn by the lock. This

should not exceed 2.0 A (12 VDC) or 1.0 A (24

VDC). If it significantly exceeds the nominal

current specified by the manufacturer, the lock

may be faulty.

8. If the lock still fails to operate when the door

controller is switching the correct voltage,

suspect a faulty lock. Try fitting a known working

lock in place of the suspect device.

9. Repeat for all four (two on a Readykey K1200)

lock outputs.

D/C n ERROR-1 (where n is 2 - 8).

This means the master is trying to communicate

with a slave controller that has been entered in

the poll table, but is getting no reply.

10. Check:

The six-wire bus connection between the master

and slave.

Check the option switches (bottom left of door

controller circuit board) are set correctly. The top

three switches should be to the right on the

master, to the left on a slave.

Check the address of the slave, it should be set to

2, 3 or 4. Make sure no other slaves have the

same address.

Disconnect any other slaves on the six-wire bus.

If the fault goes away, check the connections and

addresses of the other slaves.

7.1.5 No error is displayed on the master but

the slave still fails to communicate

This probably means that the slave door controller is

not in the master's poll table.

Check:

The poll table should include the slave controller

number (2-8). Use the INST command (see

Section see Section 6.1.2 INIT Command) to check

the poll table.

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 60

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Bosch K2200 Series Guía de instalación Pagina 54

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