ZIEHL-ABEGG U-EK230E, Руководство по эксплуатации

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U-EK230E L-BAL-E185-GB 2023/10 Index 005 11660-0711-03 5/12
10
Commissioning
Before switching on the mains voltage make sure that it matches the
specification on the type plate.
Attention!
Observe chapter 15.8 Safe separation.
•
After the supply voltage is switched on and when the thermistors are correctly connected the green
LED „ON“ must light-up and the relay contacts 11, 14 must close.
•
The correct function of the device must be checked by resistance simulation at terminals T1, T2
according to chapter 16 Proof testing of the safety functions. This check must be repeated after
changes to the installation.
11
Operation instructions
The device must be manually reset after a fault signal (red = alarm). For this purpose, the built-in reset
button or an external button (remote reset terminals Y1, Y2) can be used.
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Troubleshooting and remedies
Relay contacts 11, 14 do not close:
•
Check the supply voltage Us at terminals A1, A2 (green LED lights-up).
•
Check the thermistors at terminals T1, T2. In case of a fault the red LED lights-up.
•
The resistance of the thermistor
circuit must be 50 Ω < R < 1500 Ω. The terminal voltage T1, T2 must
be < 2.5 VDC with connected thermistors and temperature below TNF.
•
Push
the button “Reset”. A fault signal can be reset at R < 1.65 kΩ. The status LED changes from
red to green. Alternatively, a reset can be done with closing an external contact at terminals Y1, Y2
or with voltage recovery.
Relay contacts 11, 14 do not open:
•
With no connection at terminals T1, T2 the device must indicate a fault and the relay contacts 11, 14
must open. The terminal voltage T1, T2 must be approximately 8 VDC.
In case of any other malfunctions, replace the device. Please add a description of the occurred
malfunction when sending it back for repair.
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Technical data
Power supply (A1, A2)
Power supply Us AC 220-240 V
Voltage tolerance AC 0.
9 Us …1.1 Us
Frequency 50 / 60 Hz
Frequency tolerance
45 Hz … 65 Hz
Power consumption < 2 W
Voltage dip buffer time max. 20 ms
PTC thermistor
“TP” input (T1, T2)
according to DIN VDE V 0898-1-401
Number 1 (
not allowed for explosive atmospheres
) 3 or 6 in series
Rated response temperature TFS
60 °C … 180 °C
Response tolerance ±6 °C
Collective resistance cold thermistor
≤ 1.65 kΩ
Terminal voltage (thermistor)
≤ 2.5 VDC at R ≤ 3.65 kΩ, ≤ 2 V at R ≤ 1.65 kΩ
Open-circuit voltage
≤ 9 VDC at R =

Terminal current (thermistor)
≤ 1 mA