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HOKKIM INTEGRATED AMF CONTROL BOARD MANUAL FOR MODELS:
HAMF-8 AND HAMF-4

INTRODUCTION

Thank you for purchasing the Hokkim Integrated Automatic Mains Failure Control Board model HAMF-
8 or HAMF-4. We shall strive  to provide you with the best service in terms of technical support, stock 
and parts replacement. This manual should be read through before attempting to install the unit or replace 
faulty parts. A copy should be handed to the owner’s maintenance team for future reference.

The design and development of the Hokkim Integrated AMF models comes from many years of studying 
the traditional AMF boards hard wired with relays and timers. The integrated AMF is based on traditional 
timers and relays and not on micro controllers. It is very flexible, comes with many features and easy to 
use. Due to our policy of continuous development, we welcome suggestions for improvements. Thus, 
there may be changes after this manual is printed. If in doubt, do not hesitate to call for our technical 
support.

PARTS IDENTIFICATION 

Figures 1 & 3 show the top faces with labeling of Light Emitting Diode indicating lights and knob 
adjustments for the respective model. While figures 2 & 4 show the bottom base Printed Circuit Board 
with labeling of terminals and plug-in PCB cards. We will now identify each PCB card and familiarize 
you with the LED indicating lights and knob adjustments. Once familiarized, you will be able to follow 
the operation of the Integrated AMF and identify problems when they occur and replace the appropriate 
card.
1)

ESR

 - 

E

mergency 

S

top 

R

elay.

RUN (green) LED On - Relay energized to power the rest of the relay cards.
STOP (red) LED On

- Relay   de-energized   to   cut   power   to   the   rest   of   the   cards   except   the 

Energized Stop Timer.

2)

FMR

 - 

F

ault 

M

onitor 

R

elay.

RUN (green) LED On - No faults detected by the Fault Alarm Relays.
TRIP (red) LED On

- One or more faults detected. Generator Stopped.

3)

EST

 - 

E

nergized 

S

top 

T

imer

ON (green) LED On

- Energized stop relay and the delay timer activated.

UP (amber) LED On

- Time delay up and stop relay released.

Time Adjustment

- 0 to 20 Sec.

4)

MFT

 - 

M

ains 

F

ail 

T

imer

ON (green) LED On

- Mails failure detected and delay timer activated.

UP (amber) LED On

- Timer relay energized and start generator sequence activated.

Time Adjustment

- 0 to 10 Sec.

Selection

- Normally Open or Normally Close to run.

5)

SDT 

S

hut 

D

own 

T

imer & Fuel Solenoid

ON (green) LED On

- Fuel solenoid relay activated.

ON (green) LED On

- Shut Down Timer activated and timer count down begins.

Time Adjustment

- 0 to 20 Min

Page 1

HOKKIM

giving you control

Control & Protection Relays

Summary of Contents for HAMF-4

Page 1: ... show the bottom base Printed Circuit Board with labeling of terminals and plug in PCB cards We will now identify each PCB card and familiarize you with the LED indicating lights and knob adjustments Once familiarized you will be able to follow the operation of the Integrated AMF and identify problems when they occur and replace the appropriate card 1 ESR Emergency Stop Relay RUN green LED On Rela...

Page 2: ...Page 2 HOKKIM giving you control Control Protection Relays ...

Page 3: ...Page 3 HOKKIM giving you control Control Protection Relays ...

Page 4: ...Page 4 HOKKIM giving you control Control Protection Relays ...

Page 5: ...Page 5 HOKKIM giving you control Control Protection Relays ...

Page 6: ... off the lamp output relay in the Fault Alarm Relay card Adjustment Flashing rate from slow to fast and steady 12 FAR Fault Alarm Relay LAMP amber LED On Lamp relay energized and output to external lamp ALARM red LED On Fault signal detected and alarm activated Selection Loop to next FAR or Out to FMR 13 OPR Oil Pressure Relay Provides 4 nos delay on contacts set by OPT for fault alarm signals 14 ...

Page 7: ...Page 7 HOKKIM giving you control Control Protection Relays ...

Page 8: ...ectable Normally Open or Normally Close T12 To Mains Fail contact selectable Normally Open or Normally Close T13 To Bell Cancel push button Normally Open T14 To Bell Cancel push button Normally Open T15 To Alarm Reset push button Normally Close T16 To Alarm Reset push button Normally Close T17 Negative supply input from battery T18 Negative supply output Internally connected to T17 T19 Positive su...

Page 9: ...To indicator lamp No 2 corresponding to S2 L3 To indicator lamp No 3 corresponding to S3 L4 To indicator lamp No 4 corresponding to S4 L5 To indicator lamp No 5 corresponding to S5 L6 To indicator lamp No 6 corresponding to S6 L7 To indicator lamp No 7 corresponding to S7 L8 To indicator lamp No 8 corresponding to S8 TERMINALS S1 TO S8 FAULT SIGNAL INPUTS S1 To volt free fault signal contacts Norm...

Page 10: ...You can have options of 1 2 or 4 oil pressure delay contacts TERMINALS C1 TO C8 ALARM EXTENSION C1 To Extension Fault Alarm Relay Board FARX terminal R1 For use if required C2 To Extension Fault Alarm Relay Board FARX terminal R2 For use if required C3 To Extension Fault Alarm Relay Board FARX terminal R3 For use if required C4 To Extension Fault Alarm Relay Board FARX terminal R4 For use if requi...

Page 11: ...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 Ex...

Page 12: ...ing from No 1 to 8 It should be noted that fault signal which is loop through the OPR contacts cannot be triggered externally When one or more fault is triggered the following should happen The FMR will trip this is only true if the fault Loop Out has not been disabled The Bell LED will light and external bell ring The corresponding Lamp LED will flash together with the external lamp The correspon...

Page 13: ...afety and sometimes is not used 10 OPR Fault Simulation Repeat steps 3 5 6 with fault inputs loop through the OPR 11 14 21 24 31 34 41 44 contacts Fault can only be stimulated after the OPT is up and OPR energized It can be noted that each time a fault is stimulated the FMR trips cutting supply to MFT SDT GRR CCR OPT OPR The EST will on and after the set delay up and releases the external stop sol...

Page 14: ...l thus causing it to ring on and off Four nos OPR contacts are provided but if they are insufficient you can add a relay to the Oil Pressure Timer output for additional contacts You can use the Fused ve out terminal T02 as a power source for additional controls if needed It is protected by the 10A fuse on the base PCB TROUBLE SHOOTING The HAMF 8 4 is designed in such a way that parts replacement a...

Page 15: ...ng strike the Under Voltage Relay and cause a flash over to its relay contacts After taking care that the base PCB is not damaged trouble shooting the HAMF 8 4 is easy in the worse scenario all you have to do is to replace all the 21 16 relay cards which takes less then 10 minutes To replace any relay card you have to remove the six knobs and six mounting screws of the top face label plate After r...

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