25
Instruction Manual
BC 800 R Series
EN
Date: 02-09-2012
5.9.2 Pin assignment
Pin
Name
Type
1
Description
Level
Electrical specifications
1
Temp sensor
AO Temperature sensor
LM 335
10mV/°K
2
Trickle /
Battery full
AO Trickle charge / Charging done
Charging done = High (U
High
>4V),
else = Low (U
Low
<1V)
3
Charging
AO Charging active
Charging = High (U
High
>4V),
else = Low (U
Low
<1V)
4
VMON
AO Actual value: voltage
0….10V corresponds to 0….100% of U
Nom
5
CMON
AO Actual value: current
0….10V corresponds to 0….100% of I
Nom
6
AGND
Reference for analogue signals
For CMON, VMON
7
Remote
AI Activate remote control
External = Low (U
Low
<1V),
Internal = High (U
High
>4V)
8
Start / Stop
AI PS mode: Power output off
Bat mode: Start/Stop charging
Off / Start = Low (U
Low
<1V),
On / Stop = High (U
High
>4V)
9
OT / OVP
AO Overtemperature OT /
Overvoltage OVP
Low = No error (U
Low
<1V)
High = Error (U
High
>4V)
U
max
= 30V, I
max
= -20mA
Quasi Open Collector with
10k pull-up to Vcc
(2
10
DGND
Reference for digital signals
For control and monitoring signals
11
Reserved
X
must not be connected
12
Reserved
X
must not be connected
1)
AO = Analogue output, AI = analogue input
2)
12V...15V
U
max
= 30V, I
max
= -20mA
Quasi Open Collector with
10k pull-up to Vcc
(2
Accuracy 0.1% at I
max
= +2mA
Short-circuit-proof against AGND
U
max
= 30V
I
max
= -1mA at 5V
5.9.3 Example applications
I. Charging start/stop (output on/off)
Before the
charging
can be started remotely, the de-
vice is required to be set into remote control (pin 7).
In battery charging mode the pin is used to start or stop
the charging.
In „Power Supply Mode“, pin 8 is used to switch the
power output off and then on again. In this mode, the
output can be used whether the remote control is active
or not, like an emergency off switch.
Reference is digital ground (DGND).
Caution!
If pin „Start/Stop“ is already pulled to LOW
when switching to remote control, then the charging
will start immediately.
Handling the device
II. Monitoring the device condition
The outputs are quasi open collector outputs with a 10k
pull-up resistor to Vcc. They work as current sinks. The
maximum input voltage must not exceed 30V and the
maximum input current must not exceed 20mA.
With this, also relays or LEDs can be used to indicate
the status without the necessity to amplify.
Note, that the pins are HIGH when indicating their
dedicated signal. It might be required to invert them
when used to switch a relay or a LED.
Reference is digital ground (DGND).
III. Monitoring voltage and current
The analogue monitoring outputs put out 0...10V which
corresponds to 0...100% of the nominal values.
Reference is analogue ground (AGND).
Содержание BC 800 R Series
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