Trouble Shooting - Honeywell IDENT-KEY 3 Montage, Anschluss, Anleitung

Mounting and Connection Instructions IK3 Evaluation Unit Conventional
10.

Trouble shooting

Fault
RS-485 readers - no
function
RS-485 readers -
arming impossible
No positive drive cond.
when arming or
Interval buzzer at the
EU
Blocking element - no
function
No AC function
EU sporadically looses
data carrier authorization
PC-WINFEM no
communication to EU
Possible Cause
Readers have no
RS-485 address
E nd of line resistors at
RS-485 bus incorrect
Too high current consumption at
connection U_BDT. Curr. consump.
becomes active at approx. 200 mA
Reader programmed as
internal reader
Blocking element monitoring signal Check wiring and voltage
incorrect or not connected
or supply voltage too low
Incorrect connecting cables
No door release time programmed Correct programming
Faults due to external influence
Jumper PL5 closed
Elimination
Allocate address(es)
Check plug-in bridge PL3
and if necessary end of line
resistors in front of every
reader at the end of the bus line
Supply users via U_b
Correct programming
External arming only possible
on external readers
supply of blocking element
Check connection (colours of
leads)
Connection between door strike
operating voltage and 0 V of
U_b??
See note in Point 7.8 to rectify.
Equip DC door strike with a
free-running diode
Remove PL5 (see 7.10)
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