Troubleshooting Guide - hager HZI810 Mode D'emploi

oPeratIon
automatic sequences
return to prioritY source
this sequence is activated as soon as the changeover-
switch is in automatic mode and in emergency position
(position II) :
• the priority source is not available
> Specific feature: manual re-transfer
• When priority source comes back, it can be required
not to automatically retransfer and wait for a more
adequate moment.
• It is possible, validating manual retransfer feature
(referto programming), to block the re-transfer.
It is initiated from:
• Validation push button localy or on remote interface
• Via a programming input if MtF option is selected.
>
sequence description
Priority source unavailable
Generator running (emergency source) &
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All manuals and user guides at all-guides.com
• the changeover switch is in emergency position
(ex: genset)
• the emergency source is available.
Manual retransfer = validation press
OR
optional input activation, Mtf feature
Switch in position II

trouBleSHootIng guIDe

Problem Action to be performed
1
Product is Check that the connections are as indicated in the technical documentation
oFF (display provided with the product.
and leDs are
Specific case: Single-phase application:
off).
- Connect the incoming supply cables to terminals 104 (Neutral) and 106 (Phase).
- Bridge terminals 103 and 104.
- Configure the network type to 1BL in the SETUP menu.
Directly check that voltage is present across the terminals with a voltmeter:
- Voltage presence on Priority source ➡ terminals 104 – 106 (u>100Vac)
- Voltage presence on Emergency source ➡ terminals 203 – 205 (u>100Vac)
2
Product is • Disconnect power supply to try to reset the fault
faulty (fault is
• In case of programming inputs Ft1 or Ft2, verify if external fault is not
active) Ft1,
active (atomatic reset).
Ft2, Ft3,
• In case of programming inputs Ft3 or Ft4, verify if external fault is not
Ft4
active. the fault must be reset or keypad (validation push button)
3
"sourCe 1 Press the "Lamp test" button.
availability"
leD is off.
Message "PROT1" is shown ➡ reverse terminals 104 and 105.
Check the following parameters in the SEtuP menu (programming mode):
- network type ➡ NEtWORK : 4NBL, 2NBL, 2BL, 1BL, 3NBL....
- nominal voltage ➡ Un : voltage across the terminals should be verified with
a multimeter.
- frequency ➡ Fn : 50 or 60 Hz
Check the threshold and hysteresis of the nominal voltage and frequency in
the VOLt and FREquENCY menus and adjust if necessary.
4
"sourCe 2 Press the "Lamp Test" button
availability"
leD is off.
Note: An unloaded generator can produce a voltage and frequency > than
its nominal values:
- Check threshold and hysteresis settings for the nominal voltage (VOLt menu).
- Check threshold and hysteresis settings for the nominal frequency
(FREquENCY menu).
Check parameter un in the SEtuP menu (programming mode). this setting should
correspond to the value measured across terminals 203 & 205 with a multimeter.
5
retransfer is Check the status of the "SOURCE 1 availability" LED. If this LED is not on,
not achieved refer to the appropriate section above ("SOURCE 1 availability" LED is off).
after the Item 3
priority
Check that the product is in automatic mode:
source
- Auto mode on controller must not be inhibited. Check that a programmable
has been
input, if configured, has not been activated (verify that the MANU indicator
restored.
is not displayed).
- When utilising with change over switch verify the handle has been removed
and that the selector is in the automatic position.
Check status of source 1 stability timer (Mrt). Priority source is not
considered available until this timer has finished counting down.
Check to see whether "MtF" (manual retransfer) has been activated in the
SEtuP menu (YES = enabled).
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Expected results
Controller is on:
"ON" LED is lit. If
the product is still
OFF it should be
returned to
Default out
the display and all
LEDs are on.
"SOuRCE 1
availability" LED
is on.
the display and all
LEDs are on.
"SOuRCE 2
availability" LED
is on.
"SOuRCE 1
availability" LED
is on.
Automatic mode is
selected.
Retransfer is achieved
after Mrt delay.
"MtF" = NO (manual
retransfer disabled).
If "MtF" = YES,
Confirm retransfer.
Automatic transfer is
achieved.