Bender ISOMETER iso415R User Manual

iso415R-x_D00401_00_M_XXEN / 04.2021 27
ISOMETER® iso415R
6 Error – Cause – Error correction
Error pattern Cause Correction Source
RS-485
Unstable system Missing termination due to incorrect
commissioning or defective component.
No device is terminated.
Congure the terminating resistor, determine
the terminating resistor value and replace it if
necessary.
Faulty termination due to incorrect
conguration or defective component.
Only one or more than two devices are
terminated.
Congure the terminating resistor, check quality
of the bus signal.
Missing bias resistors in the master device Installation and conguration of the missing
bias resistors.
No communication Incorrect conguration: dierent baud
rates between bus devices.
Calibrate baud rates between all bus devices.
Incorrect connection: terminals A and B
are mixed up.
Establish correct bus wiring.
Alarm relays
Relays do not energise No alarm message due to defective com-
ponent or defective controlling devices.
No alarm source has been assigned.
Check relay for proper function,
replace device if necessary.
Assign alarm sources.
Relays do not de-en-
ergise
No alarm reset due to sticking or defective
relay. Switching current > 5 A.
Replace device, if necessary. Observe technical
data of the switching output.
No switching of the relay due to excessive
preloads on contacts.
Observe technical data of the switching output.
Enclosure
Broken screw-mount-
ing brackets
Device becomes detached due to broken
mounting brackets.
Preventive measure: Use correct screw type and
observe max. tightening torque.
If the screw-mounting brackets are defective:
mount on DIN rail or replace device.
Non-compliance
with the insulation
guideline
Insucient insulation due to insucient
distance between mounting screws and
connecting wires.
Use screws with plastic cover or mount on DIN
rail.
Terminals
Wires detach from the
terminal
Due to splicing of wire ends, it is not
possible to insert them into the terminal
or hold them rmly in the terminal.
Use ferrules for mounting and connection to
exible cables.
Wires cannot be re-
moved from terminal
Ferrules with strong crimp impressions
get stuck in the terminal
Use correct crimping pliers for mounting and
connection with exible cables.

Bender ISOMETER iso415R Specifications

General

Brand	Bender
Model	ISOMETER iso415R
Category	Measuring Instruments
Language	English