
Electrical Specification
Conforming to Standards BS/EN60947
DC CURRENT: S10 25A nominal current flows through L1, L2, M1 & M2
Smooth-BRAKE 60 Amp or 90 Amp high current connections directly
to thyristor diode module.
FREQUENCY: The unit is for rated 50 Hz.
DWELL TIME: From operating main contactor to closing DC contactor:
S10 0.5 seconds
Smooth-BRAKE 1 second
TIME RANGE: S10 braking time range is 0.1 to 12.7 seconds
(270° rotation linear potentiometer)
Smooth-BRAKE 0.2 to 50 seconds
(270° rotation linear potentiometer)
DC VOLTAGE: The voltage range is up to approx. 160 volts, with the minimum
v
oltage dependent on thyristor latching current.
DUTY CYCLE: S10 Limited by software to 10%. For every second of braking 10 is
added to a register. For every second not braking 1 is subtracted.
Restart is inhibited if the register is above a value of 250.
Note: if the unit will not start it will be waiting for this register to count
down below 250. The maximum dela
y is approx. 2 minutes.
Smooth-BRAKE No software limitation of duty cycle. Heat sink rated
for 10 off equally spaced 35 second stops per hour maximum at stated
current.
DIMENSIONS: S10 81H x 45W x 121D (mm) - DIN Rail mounting
Smooth-BRAKE 100H x 160W x 125D (mm)
TERMINALS: S10 2 times 2.5mm
2
max
Smooth-BRAKE main terminals M5 screw
control terminals 2 times 2.5mm
2
max
WEIGHT: S10 200g
Smooth-BRAKE 1.0kg
HUMIDITY: 85% non condensing
AMBIENT TEMP: Operating -10 to +40C Storage -20 to +70C
PROTECTION: IP code IP20
RELAYS: RL1 Internal 8A rated contacts, 440Vac max breaking voltage.
RL2 The relay terminals 17 18 28 are volt free and can be wired in a control
circuit at lower voltage.
The rela
y contacts can be protected with a 4 Amp Control fuse.
BRAKE FUSE: Semiconductor fuse
S10
30A (10mm x 38mm) FL078 740 A
2
sec
Ferraz 660gRB10-30 A070gRB30T13 ref M330015 or equivalent.
Diode 40EPS12 800 A
2
sec
Thyristor 40TPS12 1250 A
2
sec
Smooth-BRAKE
60 Amp SKNH56 or IRKN56 8000 A
2
sec
FE100 semiconductor fuse 1800A
2
sec
NSD 32 3000 A
2
sec approx 60A 100 sec trip point
NSD 40 6000 A
2
sec approx 100A 100 sec trip point
90 Amp SKNH91 or IRKN91 15000 A
2
sec
FE120 semiconductor fuse 1900A
2
sec
ESD 50 8700 A
2
sec approx 120A 100 sec trip point
ESD 63 13300 A
2
sec approx 150A 100 sec trip point
3
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