Velleman K8056 User manual

Eight channel remote relay card
ILLUSTRATED ASSEMBLY MANUAL H8056IP-1
Thisrelaycardcanbeusedinseveralways:stand
alonecard,addressedbyswitchesoropencollector
outputsorremotecontrolledthroughRS232.
K8056K8056

This relay card can be used in several ways:
Stand alone card, addressed by switches or open collector
outputs.
Remote controlled through RS232.
In option remote controlled using RF (radio frequency) signals
and K8058 remote control+ RX433 module
Since the card can be addressed using RS232 commands, you
may write custom applications in any language you want or on
any platform you want.
Test software can be downloaded from our web site.
This device complies with Part 15 of the FCC Rules provided
the enclosed instructions are followed to the letter. Use of the
device is subject to the following conditions: (1) this device
must not cause harmful interference and (2) the operation of
this device should not be influenced by unwanted interference.
More information about FCC can be look at http://www.fcc.gov

3
Features & specifications
Features :
Eight high quality relay contacts, 5A/230VAC max.
Relay outputs are transient suppressed using VDR’s.
LED confirmation on each relay contact.
Eight drive inputs to use with open collectors or regular switches.
RS232 input to drive the card with computer or terminal.
High or low impendant selection (10K or 1K).
Optional RF driving possibility using RX433 type module(*). Together with
K8058 eight channel RF remote control.
Specifications
 Power: 12Vac / 500mA (including 12V output)
 Unregulated 12Vdc / 200mA power output
Diagnostic / test software
Separate relay on/off test with moment or toggle function.
Clear all / set all relays function.
Address selection, up to 255 cards can be selected.
Emergency stop for all cards.
Minimum system for test software :
 Pentium class CPU
 Windows 95 or higher
 Mouse and free RS232 port
* Not simultanious with RS232

4
Assembly hints
1. Assembly (Skipping this can lead to troubles ! )
Ok, so we have your attention. These hints will help you to make this project
successful. Read them carefully.
1.1 Make sure you have the right tools:
 A good quality soldering iron (25-40W) with a
small tip.
 Wipe it often on a wet sponge or cloth, to keep it clean; then apply solder to
the tip, to give it a wet look. This is called ‘thinning’ and will protect
the tip, and enables you to make good connections. When solder
rolls off the tip, it needs cleaning.
 Thin raisin-core solder. Do not use any flux or grease.
 A diagonal cutter to trim excess wires. To avoid injury when cutting
excess leads, hold the lead so they cannot fly towards the eyes.
 Needle nose pliers, for bending leads, or to hold compo-
nents in place.
 Small blade and Phillips screwdrivers. A basic range
is fine.
For some projects, a basic multi-meter is required, or might
be handy
1.2 Assembly Hints :
Make sure the skill level matches your experience, to avoid disappointments.
Follow the instructions carefully. Read and understand the entire step before
you perform each operation.
Perform the assembly in the correct order as stated in this manual
Position all parts on the PCB (Printed Circuit Board) as shown on the draw-
ings.
Values on the circuit diagram are subject to changes.
Values in this assembly guide are correct*
0.000

5
Use the check-boxes to mark your progress.
Please read the included information on safety and customer service
* Typographical inaccuracies excluded. Always look for possible last minute
manual updates, indicated as ‘NOTE’ on a separate leaflet.
1.3 Soldering Hints :
1- Mount the component against the PCB sur-
face and carefully solder the leads
2- Make sure the solder joints are cone-shaped
and shiny
3- Trim excess leads as close as possible to the
solder joint
REMOVE THEM FROM THE TAPE ONE AT A
TIME !
Assembly hints
AXIAL COMPONENTS ARE TAPED IN
THE CORRECT MOUNTING SEQUENCE !

6
Construction
R1 : 1K (1-0-2-B)
R2 : 10K (1-0-3-B)
R3 : 56 (5-6-0-B)
R4 : 56 (5-6-0-B)
R5 : 10K (1-0-3-B)
R6 : 56 (5-6-0-B)
R7 : 10K (1-0-3-B)
4. Resistors.
R...
J (6x)
1. Jump wires.
D5 : 1N4148
D6 : 1N4148
D7 : 1N4148
D8 : 1N4148
D9 : 1N4148
D10 : 1N4148
D11 : 1N4148
D12 : 1N4148
2. Diodes (check the polarity)
CATHODE
D...
ZD1 : 5V1
3. Zener diode (check the polarity)
CATHODE
ZD...
R8 : 56 (5-6-0-B)
R9 : 10K (1-0-3-B)
R10 : 56 (5-6-0-B)
R11 : 10K (1-0-3-B)
R12 : 56 (5-6-0-B)
R13 : 56 (5-6-0-B)
R14 : 56 (5-6-0-B)
R15 : 10K (1-0-3-B)
R16 : 10K (1-0-3-B)
R17 : 10K (1-0-3-B)
R18 : 1K (1-0-2-B)
R19 : 470 (4-7-1-B)
R20 : 4R7 (4-7-B-B)
R21 : 4R7 (4-7-B-B)
R22 : 1K (1-0-2-B)
R23 : 10K (1-0-3-B)
R24 : 1K (1-0-2-B)
D1 : 1N4007
D2 : 1N4007
D3 : 1N4007
D4 : 1N4007
5. Diodes (check the polarity)
CATHODE
D...
SW1 : Test (KRS0612)
6. Push button
SW...
C1 : 100n (104, 0.1, u1)
C2 : 100n (104, 0.1, u1)
7. Capacitors
c...

7
Construction
IC1 : 14p
8. IC sockets. Watch the position
of the notch!
LD1 … LD8 : Output indication
LD9 : Power indication
LD10 : DATA indication
9. LEDs. Watch the polarity!
LD1
CATHODE
LD1
LD2
LD3
LD4
LD5
LD6
LD7
LD8
LD9
LD10
3mm RED
T1
T2
T3
T4
T5 BC547B
T6
T7
T8
T9
10. Transistors
T1
JP1 : 3p “ON/OFF remote”
JP2 : 3p “RS232/RF”
JP3 : 3p “Normal/Current”
11. Header
C3 : 100µF
C4 : 100µF
12. Electrolytic capacitors.
Watch the polarity !
C...
ATTENTION : SK2 to SK9 are
7,5mm pitch connectors, SK12 to
SK19 are 5mm pitch connectors!
SK1 : 2p => (AC 12V input)
SK2 : 2p
SK3 : 2p
SK4 : 2p
SK5 : 2p
SK6 : 2p Output 1 … 8
SK7 : 2p
SK8 : 2p
SK9 : 2p
13. Screw connectors

8
Construction
SK10 : 2p => RS232 input
SK11 : 2p => V Out 12V
SK12 : 2p
SK13 : 2p
SK14 : 2p
SK15 : 2p
SK16 : 2p
SK17 : 2p
SK18 : 2p
SK19 : 2p
Input 1 … 8
VDR1
VDR2
VDR3
VDR4
VDR5
VDR6
VDR7
VDR8
14. VDR’s
VDR300 (300VAC/385VDC)
VR1 : UA7805
Check the
orientation !
15. Voltage regulator
VR...
C5 : 1000µF
16. Electrolytic capacitor.
Watch the polarity !
C...
RY1
RY2
RY3
RY4 VR10V121C
RY5
RY6
RY7
RY8
17. Relays
IC1 : VK8056
programmed
Pic16F630 or eq.
18. IC. Watch the position of the
notch!

9
Control options
19. Control options
Normal Current
10K 1K
ONOFF
Fig 2.0
9 pole
3 : TxD
5 : GND
25 pole
2 : TxD
7 : GND
0 IN
355
3
TO PC
SUBD 9 pole female TO K8056
10 meter max.
5 3
TxD GND
1) RS232 cable :
Do not use a null-modem cable !!
Jumper setting :
Place JP1 in ON position
Place JP2 in RS232 mode, see fig 1.0.
Choose the impedance, high or low with JP3. Define the
impedance on experimental use. The impedance depends
on the length of RS232 cable you’re using.
Normally the impedance is 10Kohm => select normal.
If you use current loop (long cable), select current. The impedance will be
1Kohm.
2) Wireless link :
It is possible to use the K8056 together with a remote control (e.g. our K8058).
In this case an optional receiver module type RX433 is available.
The receiver module is mounted on the left hand side of the K8056 board.
Watch the position, the coil point to the relays of the K8056. If you choose wire-
less operation, make sure to set jumper JP1 & JP2 in right position.
Transmission quality depends on your environment. Other RF sources might
interfere with your signal.
Jumper setting :
Place JP2 in RF mode.
Place now JP1 in ON position (see fig. 2.0)
Put JP1 in OFF mode if you don't use a remote control (RS232 or wireless link)
RFRS232
Fig 1.0

10
Note: A Test program can be downloaded from our web site.
The source code (VB) is also available. (English only)
1) Instructions for software design :
As the instructions consist of a string of ASCII characters, it is easy to design
software which transmits the instructions via the serial port of the PC.
Port settings are: 2400/8/N/1
For wired operation, the instruction sequence needs to be sent at least twice.
For wireless operation, we recommend to send the instruction string at least 5
times in a row to ensure proper reception under all conditions. For improved
reliability, add a pause of a least 300ms between two different instructions.
Please note that environmental conditions can interfere with the signal.
Therefore, the unit is not suited for use as or as part of any kind of equipment
which might cause harm to people or property if a malfunction should occur.
2) Instruction sequence :
To execute a command, the correct sequence needs to be sent to the K8056.
Basically, a command sequence looks like this :
1. CHR$(13)
2. card address (1..255)
3. instruction
4. address (1..255) or relay# ('1'..'9' ASCII)
5. checksum (2-complement of the sum of the 4 previous bytes + 1)
3) Instructions :
'E' : Emergency stop all cards, regardless of address. Carefull, relays turned
on by open collector inputs will not be turned off by this command).
'D' : Display address. All cards show their current address in a binary fashion.
(LD1 : MSB , LD8 : LSB)
'S' : Set a relay. 'S'-instruction should be followed by relay # '1' to '8'.
('9' sets all relays at once).
'C' : Clear a relay. 'C'-instruction should be followed by a relay # '1' to '8'.
('9' clears all relays at once.)
'T' : Toggle a relay. 'T'-instruction should be followed by a relay # '1' to '8'.
20. Addressing the K8056 card through RS232 commands.
Addressing

11
Addressing
'A' : Change the current address of a card. 'A'-instruction should be followed
by the new address (1..255)
'F' : Force all cards to address 1 (default)
'B' : Send a byte. Allows to control the status of all relays in one instruction, by
sending a byte containing the relay status for each relay. (MSB : relay1,
LSB : relay8)
4. Program example : see Velleman site (www.velleman.be)

12
Diagnostic / Test software
1
2
3
4
5687

13
Note : You can download software from our website www.velleman.be which
makes it very easy to control your relay card(s).
A. Operating modes:
The K8056 features 4 operating modes :
1. Set all outputs active / non-active 
2. Eight toggle buttons 
3. Eight momentary buttons 
4. One button is reserved as 'emergency' function 
Momentary : Hold the key to activate the output and release the key to
deactivate it.
Toggle : Operates according to the principal of a classic switch, i.e. press a key
once to activate and press again to deactivate.
Emergency function : Deactivate all the outputs on the same time.
B. Address selection:
1. Select the address of the relay card you want to control. 
2. Confirm the selection by clicking the "show addr." button. 
NOTE : Make sure that you have selected the correct serial port! 
C. Changing address :
Choose the address you want to allocate to the relay card and confirm it by
clicking the "Chang addr." button. 
21. DIAGNOSTIC / TEST SOFTWARE
Diagnostic / Test software

14
PCB
22. PCB
SK11
LD10
NO 2
Velleman P8056-1
V Out
0 +12V
Data in
T9
RS232/2400/N/8/1
RF
RS232
Remote configuration
JP2
R21 R20
Current
JP3
Normal
R22 R23
ZD1
SK10
0- IN
RS232
R18
R24
LD9
D3
INPUT
AC 12V
C4
C1
VR1
C5
R1
D2 D1
R2 R3
RX1
T1
LD1
to int ant
D5
RY1
T2
LD2
R4
R5
D6
RY2
VDR1
NO 1
ANT.
D4
VDR2
SK1 SK2 SK3
R17
SK13
0 - 2
SK12
0 - 1
R19
JJ
0 - 3
SK14
C3
J
C2
SK15
0 - 4
SK16
0 - 5
I N P U T S
IC1
SK17
0 - 6
SK18
0 - 7
JJ J
Test
Off
0 - 8
SK19
SW1
JP1
Office use
For home or
On Re-
mote
RY7
LD7
NO 7
LD3
T3
R6
R7
R
RY3
D7
T4
R8
LD4
R9 R10
RY4
D8
NO 3
VDR3 VDR4
NO 4
T6
R11
T5
LD5
R12
D9
RY5
R15
LD6
T7
R13
D10
RY6
NO 6
VDR5
NO 5
VDR6
SK4 SK5 SK7SK6 SK8
D12
R14
R16
T8
LD8
D11
RY8
VDR8
NO 8
VDR7
SK9
C1 C2
COM
NO
NC
C1 C2
COM
NO
NC
C1 C2
COM
NO
NC
C1 C2
COM
NO
NC
C1 C2
COM
NO
NC
1
C1 C2
COM
NO
NC
C1 C2
COM
NO
NC
C1 C2
COM
NO
NC

15
23. Schematic diagram
Schematic diagram
Title
VR1 0V1 21 C
RY1
1N4148
D5
LE D3RL
LD1
56R
R3
VDR300
VDR1
SK2
VR1 0V1 21 C
RY2
1N4148
D6
LED3R L
LD2
56R
R4
VD R3 00
VD R2
SK3
VR1 0V1 21 C
RY3
1N 41 48
D7
LED3RL
LD3
56R
R6
VD R3 00
VD R3
SK4
VR1 0V1 21 C
RY4
1N 41 48
D8
LED3RL
LD4
56 R
R8
VDR300
VDR4
SK5
VR1 0V1 21 C
RY5
1N 41 48
D9
LED3RL
LD5
56 R
R10
VDR300
VDR5
SK6
VR1 0V1 21 C
RY6
1N4148
D10
LED3RL
LD6
56R
R12
VDR300
VDR6
SK7
VR1 0V1 21 C
RY7
1N4148
D11
LE D3RL
LD7
56R
R13
VDR300
VDR7
SK8
VR1 0V1 21 C
RY8
1N4148
D1 2
LE D3RL
LD8
56R
R14
VDR300
VDR8
SK9
SK1
1N4007
D3
1N 40 07
D4
1N 40 07
D1
1N 40 07
D2
1K
R1
10 00 µ/2 5V
C5
LE D3RL
LD9
+12V
+12V +12V +12V +12V +12V +12V +12V +12V
SK11 SK12 SK13 SK14 SK15 SK16 SK17 SK18 SK19
+12V
RA5/T1CKI/ OSC1/CLKIN
2
RA3/MCLR/Vpp
4
RC5
5
RC4
6
RC3
7
RA4 /T1 G/ OS C2 /CLKO UT
3RA0/CIN+/ICSPDAT 13
RA1/CIN-/ICSPCLK 12
RA2/COUT/T0CKI/INT 11
RC2 8
RC1 9
RC0 10
VDD 1
VSS
14
PIC16F630-I/P
IC1
I O
GND
UA 78 XX
VR1
100NOM
C1
+5V
100NOM
C2
1K
R24
5V 1
ZD1
1K
R18
SK10
BC547
T1
10 K
R2
BC547
T2
10K
R5
BC547
T3
10K
R7
BC547
T4
10K
R9
BC547
T5
10K
R11
BC547
T6
10 K
R15
BC547
T7
10 K
R16
BC547
T8
10 K
R17
OU T1 OUT2 OUT3 OU T4 OU T5 OU T6 OU T7
OUT1
OUT2
OU T3
OU T6
OU T5
OU T4
OU T7OUT8
OUT8
SW KRS0611
SW1
8 channel rel ay card
GND
1
LIN OUT 3
VCC 4 VCC 5
GND
6
GND
7
ANT
8
DIG OUT 2
RX433 MODULE
RX1
BC547
T9
10 K
R23
1K
R22
+5V
AN TENN A
ANT.
RS232 - RF
JP2
CURRENT
JP3
LED3RL
LD1 0
47 0R
R19
Remote ON/OFF
JP1
4R7 R21
10 0µ/ 35 V
C3
10 0µ/ 35 V
C4
4R7
R20 Te st bu t ton
NORMA L

Modifications and typographical errors reserved © Velleman Kit nv
H8056IP’1 - 2014 (rev1)
5 410329 292034
VELLEMAN NV
Legen Heirweg 33, B-9890 GAVERE
Belgium (Europe)