Bender ATICS-2-63A-ISO, Manual

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ATICS-2-ISO_D00046_04_M_XXEN / 03.2021 87
ATICS-2-63A-ISO
If there is an error, proceed as follows:
1. If required, enable manual mode.
2. Note down what happened before the error: Operating steps, error messages of the device,
environmental conditions, etc.
3. Have the article and serial number of the device at hand.
4. Contact the Bender service and state the type of error and the three-digit error code.
8.2 Frequently asked questions
A series of clicks is always heard at around noon. What does that mean?
ATICS® carries out a coil trigger test once a day. The time is calculated as follows: 12:00:00 o'clock +
(own BMS bus address * 10 s).
If set to "Generator" for the redundant line in the settings menu 1 "Changeover", the coil test for line 2
is only performed if line 2 is live.
When executing the function "TEST -> Generator", the coil test for line 2 is carried out directly after
starting the generator.
Are the connections of the insulation monitoring device subject to regular testing?
Connection faults are recognised during the self test. Self tests are carried out:
• After switching the ATICS® power supply on
• After each changeover process
• When the "TEST IT system" function is executed
• Every hour
• Every minute, when any kind of ISOMETER® fault is detected
A thin vertical line runs across the display. Is the display defective?
No. The "Refresh function" of the display is being active refreshing the contents indicated.
Why is it necessary to use two separate measuring current transformers?
The measuring current transformer STW3 (T3) is designed for short-circuit detection downstream of the
transfer switching device.
The measuring current transformer T4 monitors the isolating transformer load of the IT system. If the
load becomes too high, it will be indicated by the ATICS®. Excessive temperature (and the correspond-
ing message "Overtemperature") can be avoided when the devices that are not urgently needed are
switched off by the operating personnel.
Can a transformer be used for both tasks simultaneously (short-circuit and load current
monitoring)?
No. For each of the tasks the ATICS® features different evaluating circuits.