SFC Energy Efoy Pro 600 Use and maintenance manual

Hints for external control of EFOY Pro fuel cell
SFC Energy AG
Eugen-Saenger-Ring 7
85649 Brunnthal
Germany
Hotline: [phone] – 555
[e-mail]
www.efoy-pro.com
EFOY®is a registered trademark of SFC Energy AG
Subject to modifications and errors
Valid from: May, 13th 2019
Document revision: Rev 03
The EFOY Pro fuel cell is capable to receive commands from an external controller. To use this functionality you can
send serial commands or use switching contacts of “Data Interface”. To use external control functionality, EFOY Pro
offers three possibilities:
1) Button commands via serial communication
Via serial communication (RS-232) the same commands triggered by the buttons of EFOY Pro’s remote control can be
sent to the fuel cell. Three commands „Button On“, „Button Off“ and „Button Auto“ cover this functionality. The fuel cell
reacts the same way as if these buttons are used on EFOY Pro’s remote control. Details for setting up serial
communication are described in the manual for Interface Adapter.
2) „Remote On“ Signal
If EFOY Pro receives „Remote On“ signal by switching contacts of serial communication it starts the charging cycle until
switch off voltage is reached. In the display of the remote control you can see „R“ or “RC” as long as “Remote On” Signal
is active. Is „Remote On“ signal still active after a complete charging cycle, another charging cycle will start. Therefore
we recommend to reset „Remote On“ signal after charging cycle has started.
INFO: During operation mode „manual off“ the EFOY Pro will directly shut down, when the „Remote On“ signal is not
active anymore. If the EFOY Pro should perform a charging cycle, it has to be in „Automatic“ mode.
Switching contacts on data interface:
Pin
Function
1
DuoCartSwitch
2
RxD (Data)
3
TxD (Data)
4
GND, Ground
5
Battery +
6
Fuel Cartridge Sensor
7
Remote On
8
Hybrid
1
8

Hints for external control of EFOY Pro fuel cell
SFC Energy AG
Eugen-Saenger-Ring 7
85649 Brunnthal
Germany
Hotline: [phone] – 555
[e-mail]
www.efoy-pro.com
EFOY®is a registered trademark of SFC Energy AG
Subject to modifications and errors
Valid from: May, 13th 2019
Document revision: Rev 03
3) Hybrid Mode
For using Hybrid Mode you need two signals: „Hybrid“ and „Remote On/Off“. In Hybrid Mode the internal voltage
measurement system and charging control is deactivated and the fuel cell just reacts on external commands. Other
signals from display e.g. will be ignored.
Hybrid Mode can only be started, if the fuel cell is in “Automatic” Mode.
Via switching contacts
Via SIO-Commands or MODBUS
Display
Activate Hybrid
mode
Connect Pin 8 „Hybrid“
with Pin 4
Send command / adress frequently to
the fuel cell (at least every 15 seconds):
SIO: Hybrid
Modbus: 42004
(Function code 0x10, INT16)
First line: Hybrid
Second line: no display
Switch-on
EFOY
Connect Pin 7 „Remote
On“ with Pin 5
SIO: Remote ON
Modbus: 41030; 1: Ein
(Function code 0x10, INT16)
First line: Ext. Control
Second line: Start phase /
Charging mode
Bottom right: „RC“
Switch-off
EFOY
Open contact at Pin 7
(the contact to Pin 8
remains)
SIO: Remote OFF
Modbus: 41030; 0: Aus
(Function code 0x10, INT16)
First line: Hybrid
Second line: Shut down
procedure / no display
Deactivate Hybrid
mode
Open contact at Pin 8 SIO: Stop sending „Hybrid“
Modbus: 42004; don’t adress
First line: Automatic
Second line: Charging mode /
Standby
IMPORTANT!
- EFOY Pro 600 / 1200 / 1600 / 2200 / 2200 XT:
For e.g. maintenance purposes you can press „auto“ and „>>“
at the same time to block “Remote On” command. The display shows a closed padlock symbol on the right.
- EFOY Pro 800 / 800 Duo / 2400 / 2400 Duo / 12000 Duo:
In factory settings the external control is
deactivated. In the display a padlock symbol is displayed, when a signal on pin 7 and / or 8 is received by the
fuel cell. Activate the external control “External Control On” in the menu “Operating mode” on the operating
panel. Activation is also possible via the SIO command "Locked off" or the Modbus address 41022 (Function
code 0x10, INT16) with the value 1. An open padlock is displayed at the bottom right of the display.
-In hybrid mode, the parameterized switch-off voltage is deactivated. The fuel cell charges up to the set hybrid switch-
off voltage (factory setting lead batteries 14.7 V / 29.4 V, LiFePO4 batteries 14.6 V / 29.0 V). Overload protection must be
provided by the external control, otherwise there is a risk of damage to the battery.
-If „Hybrid“ Signal is reset, the current state of operation stays active. Then the fuel cells charging control is active
again and switches off if “switch off” Voltage is reached.
-Anti-Freeze will be activated by fuel cell automatically, even in Hybrid-Mode.
-Discharge protection and second phase of charging with reduced current is not available in Hybrid Mode.
-For external control, the battery parameters must be observed. Short charging cycles of the EFOY must be avoided.