Deditec Fan-Control-2 User manual

Hardware-Description
September
Fan-Control-2
2021

INDEX
Index | 2Seite
1. Introduction 4
1.1. Foreword 4
1.2. Customer satisfaction 4
1.3. Customer response 5
2. Hardware Description 7
2.1. Description 7
2.2. Technical data 8
2.3. Ping assignment 9
9
2.3.1. Pin assignment plug connector FAN1/FAN2
10
2.3.2. Pin assignment plug connector PWR
11
2.3.3. Pin assignment plug connector LED
2.4. Configuration of the device 12
2.5. LED outputs (connection via plug connector) 14
2.6. Switching outputs FAN1_OK and FAN2_OK at plug connector PWR 14
3. Appendix 16
3.1. Revisionen 16

I
Introduction |Seite 3
Introduction

Introduction |Seite 4
1. Introduction
1.1. Foreword
First of all, we would like to congratulate you to the purchase of a
high quality DEDITEC product.
Our products are being developed by our engineers according to
quality requirements of high standard. Already during design and
development we take care that our products have -besides
quality- a long availability and an optimal flexibility.
Modular design
The modular design of our products reduces the time and the
cost of development. Therefor we can offer you high quality
products at a competitive price.
We ensure a long delivery availability!
If semiconductors are no longer available, we can react faster.
With us, usually only modules have to be redesigned and not the
entire product. This increases the delivery availability.
1.2. Customer satisfaction
Our philosophy: a content customer will come again. Therefor
customer satisfaction is in first place for us.
If by any chance, you are not content with the performance of our
product, please contact us by phone or mail immediately.
We take care of the problem!

Introduction |Seite 5
1.3. Customer response
Our best products are co-developments together with our
customers. Therefor we are thankful for comments and
suggestions.

II
Hardware Description |Seite 6
Hardware Description

Hardware Description |Seite 7
2. Hardware Description
2.1. Description
This device is suitable for monitoring the speed of two DC fans.
The tachometer signal of the fans is monitored and evaluated. If
a minimum speed is not reached, e.g. due to dirt or motor
standstill, an externally evaluable signal is output. In addition, the
fan status can be signalled via an LED output.
The module also generates a motor speed voltage. This can be
switched from 1V ... 8V with a potentiometer and is used to set
the maximum rotational speed of both fans.

Hardware Description |Seite 8
2.2. Technical data
Controller for 2 DC fans
Power supply: 12V-30V DC (with reverse polarity protection)
adjustable working resistance: 1K, 2K2, 4K7 or 10K
maximum fan speed adjustable via potentiometer: 1V-8V
Output
2x signal output for fan status: 12V-30V DC / max. 10mA
2x LED output for fan status: max. 5mA
2x speedo input
Plug-in screw terminals for connection wiring
Operating temperature: +10°C..+50°C
DIN rail mounting
Dimensions: 92mm x 100mm x 23mm (L x W x H)
Software adaptations optionally possible

Hardware Description |Seite 9
2.3. Ping assignment
2.3.1. Pin assignment plug connector FAN1/FAN2
Pin
Bedeutung
1
Speed_Out (1V-8V)
2
TACHO
3
GND (Ausgang für Lüfter)
4
Vout (Ausgang für Lüfter)

Hardware Description |Seite 10
2.3.2. Pin assignment plug connector PWR
Pin
Bedeutung
1
FAN2_OK (Vin / 0V)
2
FAN1_OK (Vin / 0V)
3
GND (Eingang vom Netzteil)
4
Vin (Eingang vom Netzteil)

Hardware Description |Seite 11
2.3.3. Pin assignment plug connector LED
Pin
Bedeutung
1
LED2+ (Anschluss einer LED
2
LED2- ohne Vorwiderstand)
3
LED1+ (Anschluss einer LED
4
LED1- ohne Vorwiderstand)

Hardware Description |Seite 12
2.4. Configuration of the device
In order to be able to configure the device on the hardware side,
the housing must first be opened. For this purpose, the two
latching lugs on the front side with
with a screwdriver and pull out the rear part of the housing.
Setting the working resistance for the fan
Depending on the type of fan to be controlled, an appropriate
working resistance between operating voltage and signal voltage
is required.
The working resistance of this device can be set between 1K,
2K2, 4K7 and 10KOhm. -> Insert the appropriate jumper next to
the resistor.
Further information can be found in the data sheet of the fan.

Hardware Description |Seite 13
Setting the fan speed
The speed of the fans is set with the help of the potentiometer.
Voltage ranges between 1V and 8V are possible and can be set at
the measuring point "VOUT-FAN".
can be remeasured. The speed is identical for both fan outputs
and cannot be set separately.

Hardware Description |Seite 14
2.5. LED outputs (connection via plug connector)
One LED output is provided for each fan. The resistors are
already included in the device. A direct connection simplifies the
commissioning.
The two LED outputs indicate the status of the fans. See table.
LED
LED flashes
LED lights up
permanently
LED1
Status FAN1 = OK
(Fan speed 1 is OK)
FAN1 error
Fan speed 1 too low
LED2
Status FAN2 = OK
(Fan speed 2 is OK)
FAN2 error
Fan speed 2 too low
2.6. Switching outputs FAN1_OK and FAN2_OK at plug
connector PWR
The PWR side signals the status of the fan outputs.
OK state
non-OK state
FAN1_OK
= Vin
0V
FAN2_OK
= Vin
0V

III
Appendix |Seite 15
Appendix

Appendix |Seite 16
3. Appendix
3.1. Revisionen
Rev 3.00
DEDITEC Design Update
Rev 2.01
Additions to chapter 2.3,
Configuration of the device
Rev 2.00
First DEDITEC Instruction