F&F SZR-277 User manual

Wykres pracy
Main line 230 V AC mains supply
Reserve line line supplied from the generator
Uk voltage of contacts control and load switching
(terminal 6)
Tor start-up delay after switching on the power supply
or resetting the lock signal (1÷2 seconds)
Tow delay in disconnecting the line after a power failure
Top switching time of the devices
Torg generator start-up delay time (15 seconds)
Tk generator start-up time
Tcprzyw time to qualify a line as good (10 seconds)
Tp time of switching the power supply from reserve to
main input (0.3 seconds)
Control panelbe opened and the generator will be disconnected.
Features
* control of supply line parameters;
* protection of receivers against too high or too low voltage;
* control of the relay contacts and protection against short-circuit
of the generator with the main line;
* generator start up control;
* emergency, external safety switch;
* backup power supply of the controller from the battery together
with the battery charging system
Tk(s)
5
60
120
T(s)
1
510
15
Umin (V)
150 210
180
PF-441
LL` START AL
UK
Main line
Reserve
line
Lock
3-9
11-12
2-7
Tor
Tor
Torg
TkTk
Tcprzyw
Tp
3Tk
3Tk
Tow
Top
SINGLE-PHASE BACKUP
SWITCHING CONTROLLER SZR-277
- 1 - - 2 - - 3 - - 4 -
Purpose
The SZR-277 single-phase controller of backup switching is used to
control the voltage of the single-phase power supply network and
to switch the receiving line to the power supply from the generator
in case of incorrect parameters of the main power supply line.
Functioning
If the mains voltage is within the specified range, the contact
between terminals 2-7 is closed and the mains power is
transferred to the receiving line. If the permissible voltage
parameters are exceeded, the contact 2-7 is opened and the
supply line is disconnected from reception. When the main line is
disconnected, the generator starts up and then, by closing the 3-9
contact, the power supply from the generator is transferred to the
receiving line.If the power supply on the main line is restored and is
within the specified range for 10 seconds, the contact 3-9 will
5 902431 672465
Keep the product in a warm room for at least 2 hours
before connecting it to the mains power supply (for
storage or transport at low temperatures) to prevent
damage caused by condensation.
input status
indicators
generator status
indicator
error
indicator
start up time
controller
switch-off delay
at too low
power supply
voltage
minimum
permissible
supply voltage
F&F Filipowski sp. j.
Konstantynowska 79/81 95-200 Pabianice
phone/fax: [phone] POLAND
http://www.fif.com.pl e-mail: [e-mail]
WARRANTY. The F&F products are
covered by a warranty of the 24 months
from the date of purchase. Effective only
with proof of purchase.
Contact your dealer or directly with us.
More information how to make a com-
pliant can be found on the website:
www.fif.com.pl/reklamacje
Do not dispose of this device in the trash along with other waste! According
to the Law on Waste, electro coming from households free of charge and can
give any amount to up to that end point of collection, as well as to store the
occasion of the purchase of new equipment (in accordance with the principle
of old-for-new, regardless of brand). Electro thrown in the trash or abandoned
in nature, pose a threat to the environment and human health.

In other cases, the controller is powered from the main line or
generator. If the voltage on the main line is correct, it is also used to
charge the battery.
Mounting
1. Switch off the power supply of the switchgear.
2. Connect the controller according to one of the following diag-
rams. It is recommended to use additional contactors for swi-
tching the power line (diagram 2). In the case of small loads
lower than 16 A (AC-1), the system from scheme 1 can be used.
3. Set the desired controller operation parameters.
4. Switch on the power supply of the switchgear.
Description of leads
1 neutral line (N), common for the generator and the main
power line
2 phase line (L) of the main supply network
3 phase line (L ') from the generator
4 "+" from the battery
5 lock input; closing of the contact between 5 and N
causes an emergency shutdown of all relays, switching
off of the generator and disconnection of the receiving
line
6 input of output voltage control; line switching is possible
if there is no voltage on input 6
WARNING!
The controller can work without a connected control
input, but in this case the protection against gluing
contacts of the actuator relays does not work.
7, 9 power output from the main line and generator
11-12 relay contacts of generator start-up
Connection scheme
connection with load current <16 A (AC-1) connection with contactors at current load >16 A (AC-1)
For proper operation of the system it is necessary to
have a generator equipped with an automatic start
function controlled by closing the contact 11-12 of the
SZR-277 controller
Resetting of the lock is possible by switching off and on
the controller power supply, short pressing of the lock
resetting button (input 5) or automatically after 3 minu-
tes of correct operation of the main power supply line.
- 5 - - 7 - - 8 -
2
3
7
9
11 12
4
123
91087
6
5
11 12
SZR-277
Umin (V)
T(s)
LL'START AL
150 210
180
1
510
15
Tk(s)
5
60
120
Ç
Ç
Ç
L'
N/-
12 V
1.2 Ah
to the load
L
lock
generator
L
2
3
7
9
11 12
Generator operation
In case of incorrect parameters of the main line, the startup
process of the generator is carried out according to the following
scheme: 15 seconds after disconnecting the main line, the 11-12
contacts that start the generator are closed.
Then, for the time Tk, the controller waits for the start and
stabilization of the generator voltage. In case of a proper start-up,
contacts 3-9 are closed and the power supply from the generator is
connected to the receiving line. If the start-up is not completed
correctly, the generator is shut down for a time 3×Tk, followed by
another attempt at start-up. Four consecutive unsuccessful
attempts to start the generator block further attempts to protect
the battery of the generator against discharge.
After disconnecting the receiving line from the generator, its ope-
ration is maintained for a time 3×Tk, after which the generator is
switched off (opening of contact 11-12).
The battery connected to terminal 4 is used to power the
controller when there is no main power supply and the generator
has not yet started.
4
123
91087
6
5
11 12
SZR-277
Umin (V)
T(s)
LL'START AL
150 210
180
1
510
15
Tk(s)
5
60
120
Ç
Ç
Ç
L L'
N/- N/-
12 V
1.2 Ah
start of the
generator
to the load
lock
generator

Technical data
rated supply voltage
mail linia (1-2 terminals)
battery (1-4 terminals) 10÷12 V DC*
maximum permissible voltage (1-2, 1-3 terminals) 400 V AC
contacts 3×NO
maximum switching current of internal contacts
AC-1 16 A/250 V
AC-15 3 A/250 V
voltage threshold**
lower (adjustable) 150÷210 V
upper 270 V
hysteresis 5 V
switch-off time
lower threshold (adjustable) 1÷15 sec
0.3 sec
switching time 0.3 sec
time to qualify the line as a good 10 sec
generator start time 5÷120 sec
durability of relay contacts >10⁵ switchings
power consumption 1.5 W
working temperature -25÷50°C
connection 2.5 mm² screw termianls
tightening torque 0.4 Nm
dimensions 3 modules (52 mm)
mounting on the TH-35 mm rail
protection level IP20
* recommended battery type: URLA, voltage 12 V, capacity 1.2 Ah
** at voltage over 300 V, the load is disconnected in no more than 0.1 seconds
230 V AC
generator (1-3 terminals) 230 V AC
upper threshold
CE declaration
Declaration of CE conformity of the device can be downloaded
from the product page from the website: www.fif.com.pl.
AL failure indication
load off
normal operation
incorrect contact configuration
(voltage at the Uk output)
relay lock
(input 5 connected to the neutral line)
on
off
4 blinks/sec
short switching on
L i L' phase status indicators
reduced voltage/lack of voltage
voltage too high
line connected to the reception
qualification of the line as good
voltage correct, phase is not used
off
4 blinks/sec
on
short switching off
short switching on
START generator status indicators
generator off
generator start
countdown of the pause time
between a restart attempt
normal operation
generator error
off
short switching off
short switching on
on
4 blinks/s
- 9 - - 11 -D190211
Indication