Solbrake

Electronic Brakes (DC Injection) 8-580A, 220-690V

For Smooth & Accurate

Motor Braking

SOLBRAKE
 SOLBRAKE Features Operating Adjustments
Electronic Brakes (DC Injection)
The Solbrake - Solid State Motor Brake provides fast, smooth,
Operating Logic
frictionless braking of three-phase squirrel-cage and wound rotor When stop signal is initiated, after motor contactor C1 opens,
motors by injecting controlled DC current to the motor windings, brake contact C2 closes, the thyristor is switched on inducing
after the mains contactor has opened. braking current. The torque (a function of the DC current) is
The Solbrake is the ultimate replacement for old electrical braking controlled through the firing angle of the thyristor.
systems such as Reversing (which may result in reversing rotation
of the motor) or Regenerative Braking (which requires resistors
to absorb the energy).
The Solbrake is used to quickly bring motors speed to zero, before
operating a mechanical brake.

Motor speed
Configure

Advantages at a Glance SMB stopping

Wood saw
C1 C2

❍ Reducing stopping time Stopping time

- Increase production rate in machine tools and high inertia
loads M

- Increasing safety in hazardous machines Braking Torque 3

❍ Soft, smooth stopping - preventing mechanical wear and tear Determines the amount of DC current that the Solbrake will
❍ Adjustable braking torque - matching load size and stop time inject to the motor. The Solbrake can produce a braking current
❍ Maintenance free, highly reliable - all solid state of up to four times the motor's nominal current. Motor stopping
❍ Easy installation and operation time depends on the braking current, inertia, load friction and
❍ Auto-stop - reducing motor heat - DC Injection ceases speed.
automatically when motor stops
Built-in Time Delays Power ON

The time delays also Motor

Typical Applications depend on the mode of

contactor

Brake
operation, as fast response contactor
❍ Machine tools
is crucial when operating DC Injection
❍ Circular saws
as Emergency stop. t1 t2 t3 t4 t5
❍ High inertia band-saws
Two operating modes are available - Automatic and Manual.
❍ Fast stopping of high inertia loads
❍ Safety brakes (as long as mains supply remains)
Automatic Mode Breaking contactor closed

DC injection duration is
Retrofitting automatically controlled by
the Solbrake.
DC Injection

sec.
❍ Direct On Line Injection ceases when motor 1 10
motor stopped
❍ Star-Delta systems has come to a complete halt.
❍ Multi-speed systems
❍ Forward Reverse systems
❍ Auto-Transformer systems Manual Mode Breaking contactor closed

❍ Wound Rotor systems DC injection duration is

DC Injection
according to the setting of the
Braking Time potentiometer
sec.
on the front panel. 1 10
motor stopped standstill torque
Torque at standstill when setting
the Braking Time to maximum, the DC current will continue
to hold the motor after it has come to a complete halt.

The company reserves the right to make changes

or improvements without prior notice.
 Wiring & Operation Ordering Information
SMB with Direct On Line Starter Ratings and Frame Sizes
Brake Motor KW Frame
Type (Ampere) 400V 500V 690V Size
Solbrake 10 4 5 7 DIN-Rail
O/L Solbrake 17 7.5 11 15 S1
Solbrake 31 15 22 30 S2
STOP
C 1-1 Solbrake 58 30 37 45 S2
L1 L2 1 2 START C1 Solbrake 105 55 75 90 S3
SMB
U V W
C 2-1 C 1-2
Solbrake 170 75 90 132 S3
3 4 5 6 Solbrake 210 110 132 185 S3
C1 C2
Ca Cb
Solbrake 310 160 220 250 S4
O/L SMB Solbrake 390 200 250 315 S4
C1 C2 Solbrake 460 250 315 400 S4
Solbrake 580 315 400 500 S4
M * Note: 5.5KW at 415V
3
** Table data for reference purposes only

Motor Contactor C1 Dimensions (mm) & Weight (kg)

(with one N.O + two N.C contacts)
Contact C1 - Holding, N.O contact of contactor C1 Size Width Height Depth Weight
Contact C1-1 - Auxiliary N.C contact of contactor C1, initiates S1 90 75 105 1
the braking process. S2 65 190 114 1.2
Contact C1-2 - Auxiliary N.C contact of motor contactor, acts S3 154 280 160 4
as an interlock, preventing operation of brake contactor as long S4 224 384 222 10
as motor contactor is closed.
The SMB is selected with a 10% duty cycle

Brake Contactor C2
(with one N.C contacts) 1. Motor Current & Braking Conditions
Contact C2-1 - auxiliary N.C contact of contactor C2, acts as Motor's Full Load Ampere (FLA) -
an interlock, preventing operation of motor contactor, as long as indicated on its name plate 10, 17, 31, 58, 105, 170, 210,
as brake contactor is closed. 310, 390, 460, 580.

SMB Contacts 2. Mains Voltage (line to line), 50/60 Hz

Ca contact (SMB terminals 3-4 ), closes when mains voltage is Each brake is suitable for one of the following levels
connected to SMB terminals. For: 220-240V indicate - 230
Cb contact (SMB terminals 5-6), closes upon stop signal, after 400-440V 400
time delay t1. 460-500V 480
575-600V 600
660-690V 690

3. Front Panel
S- standard
Example:
Solbrake 58 - 400 - S
1. Solbrake rating
2. Mains voltage
3. Front panel
 Additional Products
Additional catalogues available from Solcon's product range

RVS-DN
Low Voltage Digital Soft-Starter
RVS-AX / RVS-DX SOLSTART
Mininature soft-starter
RVS-BX / SEM-N
Basic electronic soft-starter
8-2700A, 230-1000V Analogue & Digital soft-starter For single & triple phase motors Basic electronic naval soft-starter

MPR 2000
Motor Protection Relay
MPC 2000
Motor Protection Relay
MPR 6 TPR 6
Motor Protection Controller Motor Protection Controller Motor Protection Relay Temperature Protection Relay

DPM 10
Digital Power Meter
PFC 10 SU 124
Generator Control & Protection
DGC 2000
Digital Generator Control &
Reactive Power Factor Controller Protection

HIU SOLBRAKE HRVS-DN EPT

Electronic Potential Transformer
Restart Relay DC Injection brake High Voltage Digital Soft-Starter 1000-14000V

PRODUCED AND DESIGNED BY "MONI BLECH"

Solcon Industries Ltd.

SOLCON 6 Hacarmel Street, Yokneam Industrial Park 20692, Israel

Tel: 972-4-9890311, Fax: 972-4-9890233
www.solcon.com