Schrack Technik BLR-CX User manual
USER MANUAL
Power Factor Correction Regulator
BLR-CX 6 to 14 steps
page
2
Installation:
For installation, all valid standards and safety precautions have to be kept!
1) Check that the measurement
and control voltage, supply
frequency and current transformer
rating comply with the ratings
given on the rear of the relay.
2) Mount the relay in the switch panel by
means of two fixing brackets.
3) Connect the protection earth to PE-
connection on metal case.
4) Connect up in accordance with the
wiring diagram.
5) Remove the link of the CT terminals
.
Commissioning:
BLR-CX is preset:
After BLR-CX is powered-on, a countdown of 90 sec is running. After countdown is finished, the
discharging time blockade oft he capacitors is active. During these two delays, no control outputs of
BLR-CX can be active. The countdown can be interrupted by pushing (esc) button, in this case also
the discharging time blockade starts before the regulation starts with the preset parameters.
BLR-CX is not preset:
During the countdown is running, automatic initialisation of BLR-CX can be started by pushing (
)
button. After the discharge blocking time (default 75s), the controller is detecting not used switching
outputs and lock them out. For the case of an faulty connection of the polarity for voltage and current,
the controller detect it and correct it.
After automatic initialisation is finished, BLR-CX starts its control function and is recognizing capacitor
size during standard operation. Settings of c/k values and switching program are not necessary. When
mains conditions are not suitable for automatic initialization, it will be interrupted. BLR-CX is showing
then error code:
“Ai Abrt“. If multiple repeat shows no results, then the setting instructions of reference manual should
be considered. (not scope of delivery).
Display “Auto“: Message “Auto“ shows, that control function is working. When „Auto“ is not
displayed, then control function is stopped. Reasons for this are: manual operation is active, control
function is switched-off, meas. current is less than 15mA, temperature is too high, voltage is out of
range or harmonic level of voltage is too high.
Over- and undervoltage monitoring: BLR-CX is equipped with over- and undervoltage monitoring.
The allowed range of voltage depends on nominal voltage. When nominal voltage is out of range,
message U Alarm is shown. Then the setting of nominal voltage has to be adjusted to local ratings.
Default is ULL 400V
Activation of measuring value display: To enable the display of all possible measurement values
the CT ratio has to be set. Otherwise the measurement menu of the BLR-CX only contains values
which are only depending to the voltage.
load
T
K L
Um1Um2
AM
MS
1 14
1-14
T1 T2
external
temperature sensor
or temperature switch
(parallel use of sensor
and switch is possible)
up to 14
control exits
control exits can
be parametered
for fan control
signal:
in order
(life-contact)
K1
K14
K1-K14
L1
L2
L3
N
PE
BLR-CX
TTL
Interface
X/1A or X/5A
1 mA - 6A 90V - 0V
power-input
utility
page
3
Display and Operation:
INFO: capacitor database
AUTO: automatic control is running
MANUAL: manual mode
SETUP: setup menu
ALARM: blinking during alarm
NT: 2. target-pf is activ
EXPORT: export of active energy
1 – 14: control outputs
Operation of BLR-CX is done by 4 keys.
In main menu level, you can choose by pushing or the main menus. Selection by (
) is
opening submenus. By pushing of (esc) the menu is left to next higher level.
INFO
0,99
i
0,99
i
0,99
i
MANUAL
0,99
i
SETUP
measuring values
capacitor database
(3 sec.) manual
operating
Setup
(3 sec.) expert
Measuring values (by pushing and the measuring values can be selected):
voltage U
Ph-Ph
, voltage U
Ph-N
, current I, active power P, reactive power Q, reactive power to reach
target ∆
∆∆
∆Q, apparent power S, THD U, 3.-15. Harmonic of voltage, displacement power factor cosϕ
ϕϕ
ϕ,
power factor PF (Λ), average power factor APF, frequency F, temperature t, max. temperature thi,
operating hours OPh
INFO capacitor database: Attention: The state of the outputs is not shown in this menu!
By pushing and the steps can be chosen. The chosen step is flashing in step indication. By
pressing (
) the information for the selected step is shown. Using the up and down buttons can be
browsed through the values.
INFO
INFO
INFO
INFO
CC
C
50
kVar
CC
i
99.9
%
OC
10.12
k
CC
AUTO
1
2 3 max.
1
2 3 max.
1
2 3 max.
1
2 3 max.
actual power of step Percentage actual to
nominal power
number of operations steptype
It’s possible to have capacitive steps as well as inductive steps. The power is always rated according
to selected nominal voltage.
Possible step types: Auto, Fon (Fix on), Foff (Fix off), Defective, AL (Alarm, e.g. for fan control)
MANUAL operation: Attention: In manual operation, automatic control is not active!
To avoid that control stops accidentally, this function can only be entered by pushing
(
)
for 3 sec. to enter this menu.
After calling manual mode, the regulator freezes the outputs in actual position. By pushing und
key, the individual steps can be chosen. The state of the outputs is changed by pushing (
) key.
The state of the outputs is shown. In manual mode, switching time delay is not working but capacitor
discharge lock time is working. When leaving manual mode, BLR-CX continues controlling without
switching-off all steps before.
SETUP:
Setup/Expert menu is structured in 6 submenus (100 – 600). Only menu 100 can be reached by
calling Setup with short pushing of enter. If enter is pushed for 3 sec, the Expert-menu is started. By
pushing und the sub-menus or parameters are chosen. By pushing (
) submenus are
opened or parameters are switched to edit mode. By pushing (esc) the next higher level is reached.
In edit mode, the cursor is blinking. By pushing and the values can be changed, by pushing
and the cursor can be moved.
To save the settings, (
) must be pushed, when cursor is on right position.
To refuse the settings, (esc) can be pushed, when cursor is on left position.
AUTO, MANUAL: cosphi
SETUP, INFO: Nummer Untermenü
page
4
Menu structure:
The table gives an overview about parameters of BLR-CX. Settings in menus 200 to 600 should be
done only by using the reference manual.
Menu 100:
Un nominal voltage (is necessary for over- and undervoltage monitoring and is reference for
capacitor database)
Ct CT-ratio (when CT-ratio is not set, only values which are only depending on voltage are shown)
Pt VT-ratio
Ai start of automatic initialization (this function is running only, when “Auto” is shown in LCD)
PFC PF-control ON/OFF (all "Auto" steps are off) / HOLD (steps are frozen)
CP1 target-PF 1 After the value for target cos phi is entered, it can be choose between target cos phi
inductive (I is flashing – default) or capacitive (c is flashing – exception)
St switching time delay
Out Type of exit: step 1… max. 14
MENU FUNCTION
DEFAULT
MENU FUNCTION DEFAULT
100 QUICK START SETUP
400 SETUP CAPACITOR DATABASE
Un Nominal voltage (phase-phase) 400V
401 Discharging time 75s
Ct CT-ratio 1
402 Capacitor size: step 1...max. 14 5var
Pt VT-ratio 1
403 Type of exit: step 1...max. 14 Auto
Ai Start automatic initializing
404 Switching operations: step 1...max. 14 0
PFC Start/Stop/Hold PF-control On
500 SETUP ALARM SYSTEM
CP1 Target-PF 1 1,00
501 Alarm storage N
St Switching time delay 10s
502 THD alarm N
OUt Type of exit: step 1...max. 14 Auto
503 Threshold THD 20%
200 SETUP MEASURING SYSTEM
504 Disconnect capacitors when THD > N
201 Nominal voltage (phase-phase) 400V
505 Delay time THD Alarm / Temp. threshold 2
60sec
202 CT-ratio 1
506 Freeze exits when I = 0 N
203 VT-ratio 1
507 Service alarm N
204 Tolerance nominal voltage 10%
508 Max. operations per step 262k
205 Voltage measuring Ph-N N
509 Max. operation hours of BLR-CX-V 65,5k
206 Phase-offset 0
510 Use temp. sensor as digital input n
207 Start automatic initializing
511 digital input active at high signal n
208 Activate Ai by every start of BLR-CX-V Y
512 Temperature alarm active n
209 Synchronisation to frequency Auto 513 Temp. threshold level 1
(fan control, type of exit: AL)
30°C
210 Temperature offset 0°C
514 Temp. threshold level 2,
disconnect capacitors
55°C
300 SETUP CONTROL SYSTEM
515 Control alarm (target cannot be reached) N
301 Switching threshold 60%
516 Defective steps alarm N
302 Target-PF 1 1,00
517 Loss of power alarm N
303 Target-PF 2 0,95
600 RESET
304 Target-PF 2 at KW-export N
601 Reset to default values
305 Switching time delay 10s
602 Reset capacitor database to default
306 Switching time delay for fine control 2s
603 Reset operation hours
307 Fine control active N
604 Reset average PF
308 Stop automatic capacitor size detection
N
605 Reset max. temperature
309 Blocking of defective capacitors Y
606 Reset alarm
310 Start/Stop/Hold PF-control On
607 1.04
311 Control algorithm 1
312 Reactive-power offset 0
313 Asymmetrical switching time delay 1
314 Switch-off capacitors in leading
condition
N
page
5
Technical Data
Measuring- and
supply voltage:
90 – 550V AC, single phase, 45-65HZ, 5VA, max. fuse 6A
VT-ratio from 1,0 – 350,0
Current measuring: 15mA – 6A, single phase, burden 20mOhm,
ct-ratio from 1-9600
Control Outputs: Up to 14 relays, n/o, with common point, max. fuse 6A
breaking capacity: 250V AC / 5A
Temperature
measuring:
By NTC
Alarm contact: Relay, volt free, life contact,
max. fuse 6A, breaking capacity: 250V AC / 5A
Fan control: By using one switching exit defined as "Alarm"
Interface: TTL, rear
Ambient
temperature:
Operation: -20°C – 70°C, storage: -40°C – 85°C
Humidity: 0% - 95%, without moisture condensation
Voltage class: II, dirt class 3 (DIN VDE 0110, part 1 / IEC60664-1)
Standards: DIN VDE 0110 part 1 (IEC 60664-1:1992)
VDE 0411 part 1 (DIN EN 61010-1 / IEC 61010-1:2001)
VDE 0843 part 20
(DIN EN 61326 / IEC 61326: 1997 + A1:1998 +A2: 2000)
Conformity and
listing: , ,
Connection Pluggable terminal block, screw type max. 4qmm
Case: Front: instrument case PC/ABS (UL94-VO),
Rear: metal
Protection class: Front: IP50, (IP54 by using a gasket),
Rear: IP20
Weight: ca. 0,6kg
Dimension: 144x144x58mm h x w x d, cut out 138 (+0,5) x 138 (+0,5)mm
page
6
Alarms:
BLR-CX has an extended alarm system. All possible settings are shown in menu structure. When an
alarm is active, the sign ALARM in the display is blinking. An error code is shown in LCD. Possible
error codes are:
Measuring voltage is out of tolerance
Measuring current is less 15mA (please check current path)
Measuring current is too high.
Target cannot be reached
THD U alarm (harmonic alarm)
/
One or more steps are defective. The defective steps are
blinking together with the ALARM sign.
/
One or more steps have less than 50% of original size. Number
of step and alarm text are blinking alternately.
Over temperature alarm. The steps will be switched-off step by
step.
Max. allowed operating hours are reached.
/
Max. allowed number of switch cycles of one or more steps is
reached.
/
Abort of automatic initialization due to not suitable load
conditions
page
7
Customer settings
Menu Factory setting Customer setting Menu
Factory setting Customer setting
100 400
Un 400 V 401 75 s
Ct 1 402 5 var (1-max.)
Pt 1 403 AUTO (1-max.)
Ai NO 404 0 (1-max.)
PFC ON 500
CP1 1 501 NO
St 10 s 502 NO
200 503 20 %
201 400 V 504 NO
202 1 505 60 s
203 1 506 NO
204 10% 507 NO
205 NO 508 262.1 k
206 0 509 65.5 k h
207 NO 510 NO
208 YES 511 NO
209 AUTO 512 NO
210 0°C 513 30 °C
300 514 55 °C
301 60% 515 NO
302 1 516 NO
303 0,95 i 517 NO
304 NO 600
305 10 s 601 NO
306 2 s 602 NO
307 NO 603 NO
308 NO 604 NO
309 YES 605 NO
310 ON 606 NO
311 1 607 1.xx
312 0
313 1
314 NO
page
8
MAN_FRBLRCX_EN_2010_06
Rev. 1.07
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