2 Specifications are subject to change (10.05.2002)
RSE..-CR1
Accuracy
Ramp up 20 ±10% on max.
≤ 0.5 s on min.
Ramp down 20 ±10% on max.
≤ 0.5 s on min.
Initial torque 50% ±5% on max.
< 5% on min.
Indication for
Power supply ON LED, green
Ramping LED, yellow (flashing)
Bypassing relays LED, yellow (constant ON)
Wrong phase sequence LED, red (flashing)
Overheated LED, red (constant ON)
Environment
Degree of protection IP 20
Pollution degree 3
Operating temperature -20°to +5 0 ° C ( - 4 °to +122°F)
Storage temperature
-50° to +85°C (-58° to +185°F)
Terminals Self lifting screw terminals
Control terminals nominal 2.5 mm
2
, AWG 14
Min. 0.5 mm
2
, AWG 20
Mounting torque max. 0.6 Nm
Power terminals nominal 10 mm
2
, or 2 x 6 mm
2
AWG 6 or 2 x AWG 10
Min. 1 mm
2
, AWG 16
Mounting torque max. 2.0 Nm
Approvals UL, CSA
CE-marking Yes
EMC Immunity EN 50 082-2
Electrostatic discharge (ESD) IEC 61000-4-2,
IEC 60947-4-2,
IEC 60801-2
Radio Frequency IEC 61000-4-3
Electromagnetic fields IEC 60947-4-2
ENV 50140
Radio Frequency IEC 61000-4-6
common mode IEC 60947-4-2
ENV 50141
Simulation of GSM signals
900 Mhz ENV 50204
Burst / Fast transients IEC 61000-4-4
Surge IEC 61000-4-5
Wire Conducted Emission EN 55011*
CISPR 11
IEC 60947-4-2
* For AC mains: 150kHz - 30MHz
Mode of Operation
General
This motor controller is intended
to softstart / stop 3-phase
squirrel cage induction motors,
especially in pump and compressor systems. Three useradjusted potentiometers are
provided to enable matching of
the ramp profiles to the specific
load. This device can also be
used in other applications with
similar load characteristics.
Starting
During motor starting this motor
controller can provide a gradual
ramp up with a maximum duration of 20 s; this is user adjusted
with the Ramp Start potentiometer. The Initial Torque
potentiometer can be adjusted
from 5 to 50% of maximum
torque (at full load voltage) to
match the load inertia. For
loads with high inertia, a kickstart can be user selected to
supply full voltage to the load
for 200 ms. After the kick-start
is performed, the voltage is
dropped according to the initial
torque % setting and ramp up
occurs. When the starting ramp
is completed, the bypass relays
and end of ramp relay (normally
open) are activated.
Stopping
This motor controller is
equipped with specific settings
for PUMP and COMPRESSOR
applications, although it can
also be utilised in other applications. The PUMP scale on the
Ramp Stop potentiometer
allows a ramp down with maximum duration of 20 ms (user
adjusted). At the beginning of
the downward ramp the full load
voltage is immediately reduced
to the level of the initial torque
setting to cause an immediate
deceleration of the PUMP system. The voltage is thereafter
reduced gradually to zero to
provide a smooth deceleration
and therefore minimise vibration
and potential leakage in the system under pressure. The COMPRESSOR setting provides an
immediate total reduction of
voltage to zero. This stopping
ramp can also be delayed by up
to 20 s to allow the system to
continue running until a new
control signal is applied. This
will help avoid unnecessary
stop-start sequences that can
damage the COMPRESSOR
system.
General Specifications
Alarm Relays
Over-temperature Alarm
- If over-temperature is detected
on the internal heatsink (>100ºC
approx.) when the motor controller is not ramping, the device
will not start, ramp up will not
occur and the alarm relay
(Normally Closed) contact will
open.
- When the temperature drops
below the critical level, reset will
only take place if the supply is
interrupted and re-applied.
- If over-temperature is detected
on the internal heatsink (>100ºC
approx.) when the bypass relays
are activated, the alarm relay
(Normally Closed) contact will
open to indicate fault.
Wrong phase sequence alarm
- At connection of power the
motor controller will start normally
- The alarm relay (Normally
Closed) contact opens
Supply Specifications
Overvoltage cat.III IEC (60664) 220 V 400 V 480 V 600 V
Operating supply voltage Uc 127/220 VACrms 230/400 VACrms 277/480 VACrms 346/600 VACrms
through L1, L2, L3 ± 15% ± 15% ± 15% ± 15%
Rated frequency 50-60 Hz ± 10% 50-60 Hz ± 10% 50-60 Hz ± 10% 50-60 Hz ± 10%
Output Specifications
Utilization category AC-53b Integral bypassing
of semiconductors
Overload current profile
(overload relay trip class) 25 A:AC-53b: 4-3: 120