VALPES VRX Manuel D'installation Et D'utilisation page 34

FAILSAFE: description
Failsafe actuators integrate battery pack monitored by electronic board in the actuator. Its function is to relay in case of power
supply failure on terminal PIN 1, 2 and 3 of the actuator. The failsafe actuators can be set on different position like normally
open (NO) or normally close (NC) depends on customer application.
Failsafe option required ON/OFF mode.
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FAILSAFE: warning

The terminal temperature can reach 90°C

The used wires must be rigid (feedback voltages: 4 to 250V AC/DC)

The two functioning modes « pre-set to closed » and « pre-set to open » are two different products (pre-set
in factory) and can't be interchangeable.

Following a power failure, the Failsafe unit will reset after 3 minutes..
FAILSAFE: electric diagram
E- : black wire
F+ : red wire
LOAD STATE
FEEDBACK
ACTUATOR WIRING
SUGGESTED CUSTOMER WIRING
34
BATTERY BLOCK
Failsafe security unit
F+
E-
65
Loaded battery : closed
contact
66
Control and power supply card
17 17
100V-240V 50/60Hz (100V-350V DC)
15V-30V 50/60Hz (24V-48V DC)
18 18
1 2 3
Open
N Ph
GS2
Pre-set to closed
On-Off mode
ENGLISH
UK
D1
D2
1 2 3
Close
N Ph
GS2.O
Pre-set to open
DSBA3401 • Rév. 13/03/2018