Fan Connector And Power Configuration - Congatec conga-QEVAL/Qseven 2.0 User Manual

Fan Connector and Power Configuration

6.12
The QEVAL 2.0 provides the ability to connect 5V or 12V cooling fans for the CPU module and system. Connector X20 is for 4pin fan and X21
is for 3pin fan. To enable or disable the fan's control signal (FAN_PMWOUT), use DIP 2 of switch SW3 and to enable or disable the fan's sense
control (FAN_TACHOIN), use DIP 4 of switch SW3.
The following tables describe the pinouts and Jumper configuration possibilities.
X20 FAN Pin
1
2
3
4
X21 FAN Pin
1
2
3
Connector Type
X20: 4 pin 2.54mm grid female fan connector, X21: 3 pin 2.54mm grid female fan connector.
Jumper X48 Configuration
1 - 2 4pin FAN +12VDC (default)
2 - 3 4pin FAN +5VDC
Connector Type
X48, X51 and X52: 2.54mm grid Jumper.
Note
The FAN_TACHOIN signal that originates from the Qseven
must receive two pulses per revolution in order to produce an accurate reading. Therefore, a two pulse per revolution fan is recommended. If
both FANs are to be used at the same time, then one FAN must not be connected to FAN_TACHOIN (module has only one TACHOIN input).
VCC on X21 is controlled by the fan's PWM control signal, which originates from the Qseven
control.
Copyright © 2014 congatec AG
Signal
GND
VCC +5VDC/+12VDC
FAN_TACHOIN
FAN_CTRL
Signal
GND
VCC +5VDC/+12VDC
FAN_TACHOIN
Jumper X51 Configuration
1 - 2
2 - 3
CPU Fan
(X20)
1: GND
1 2 3 4
2: VCC +5VDC/+12VDC
3: FAN_TACHOIN
4. FAN_CTRL
SYS Fan
(X21)
1 2 3
1: GND
2: VCC +5VDC/+12VDC
3: FAN_TACHOIN
Jumper X52 Configuration
3pin FAN +12VDC (default) 1 - 2
3pin FAN +5VDC 2 - 3
module and is connected to pin 3 on connector X20 and X21 of the QEVAL 2.0
®
QEV2m11
SW3
O
1
Default Settings:
N
2
ALL ON
3
4
3pin FAN w/o control (default)
3pin FAN with control
®
module. With Jumper X52, you can disable this
X48
X51
X52
1
2
3
46/49