HOKKIM HAMF-4, Руководство пользователя, Страница: 11 / 15

PREPARATIONS BEFORE WIRING
There are certain parameters to be set in the HAMF-8/4. It is easier to do so
before wiring up the unit because of accessibility. They are as follows:-
1) Mains Fail Timer In addition to the time delay adjustment at
the top, the MFT allows you to choose between Normally Open or
Normally Close contacts to start the generator. Look at the left hand
side of the MFT and you will see a switch. It is labeled NO and NC (see diagram). Select as required.
2) Attempt Start Relay The ASR allows you to select the number of
attempts the relay makes before sending a fail to start signal to the fault
alarm relay. Look at the right hand side of the relay. You will see the 10-
way DIP switch (see diagram). To select the number of attempt required,
push one of the switch to the ON position. Note: switch No.10 gives the
same number of attempts as No. 9. If non of the switch is selected, the relay
will attempt start continuously. Do
NOT push on more than one switch
3) Lamp Flashing Relay The LFR is factory set at a rate of 90 cycle per minute. If
another rate of flashing is preferred, it can be adjusted to a faster rate by turning the
Preset anti-clockwise and vice versa. The Preset is located on the left hand side of the
relay (see diagram). To adjust it you need a slim and long insulated screw driver.
4) Fault Alarm Relay There are certain fault signals that do not
require shut-down of the generator. Examples are: Low Fuel or
Charger Fail. The FAR allows you to set these parameters. There is a
switch at the bottom corner labeled Loop and Out (see diagram). The FARs should all be set to Loop
until the last one which should be set to Out to the Fault Monitor Relay.
Example 1: All faults require shut-down of generator. Set FAR No.1 to No.7 to Loop and No.8 to
Out. All the red LEDs in the FAR card are on.
Example 2: Two faults does not require shut-down of generator. Set FAR No. 1 to No. 5 to Loop
and No. 6 to Out. The setting of No.7 and No. 8 do not matter as they are disabled
and will not effect shut-down. Notice that the red LEDs in the FAR cards No.7 and
No.8 are off. The same rule follows if an
FARX extension is added. Any FAR that
comes after the one that is set to Out is disabled. At least one FAR has to be set to
Out or the FMR will not energize (Trip).
INSTALLATION AND WIRING
The HAMF-8/4 has a metal base plate with mounting holes in each corner. Place the unit onto your
switchboard panel and mark the holes. Drill and tap accordingly. After cleaning, mount the unit with
appropriate screws and washers. Commence wiring by referring to Fig. 5. If possible, label the wires
according to the terminal markings. This allows for easier trouble shooting. Some of the terminations will
not be required as the unit allows for various possibilities. Do Not over tighten the terminal screws, if you
damage the terminal, the unit has to be send back to our factory for parts replacement. The base PCB does
not have user replaceable parts except the 10A glass fuse.
Page 11
HOKKIM
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Control & Protection Relays