Carlo Gavazzi RSE..-CR1 Data sheet

Specifications are subject to change (10.05.2002) 1
Type Rated operational Rated operational Control voltage
voltage U
e
current I
e
U
c
RSE: 22: 127/220 VAC, 50/60 Hz 25: 25 AAC 53b C: Integral, 40: 230/400 VAC, 50/60 Hz 24 to 110 VAC/DC motor controller 48: 277/480 VAC, 50/60 Hz & 110 to 480 VAC
60: 346/600 VAC, 50/60 Hz
Integral Motor Controller Rated operational voltage Rated operational current Control voltage Ramp selector Ramp version number
Ordering Key
Motor Controllers AC Semiconductor Motor Controller Type RSE..-CR1
• Soft starting and stopping of 3-phase squirrel cage motors
• Ramp selector setting for Pump or Compressor motors
• Initial Torque setting with kick-start option
• Rated operational current: 25 AAC 53 b
• Rated operational voltage: Up to 600 VAC, 50/60 Hz
• Potential-free control input
• LED- indications for power supply, ramping, bypassing relays, phase sequence and overheating.
• Integral over-temperature protection
• Auxiliary relays for end of ramp, over-temperature and phase sequence alarms
• Built-in transient over-voltage protection
Product Description
The RSE-CR1 is an AC semi­conductor controller specifi­cally designed to switch pump and compressor motors using start and stop ramps matched to the appli­cation. Initial torque is user adjustable with optional kick­start to allow matching of the start conditions with the motor load. The start ramp can be adjusted to last up to 20 s. Two stop ramps can be
Type Selection
selected: pump or compres­sor. The pump setting pro­duces an immediate drop in load voltage down to the level of the initial torque setting, fol­lowed by a gradual ramp down lasting up to 20 s. The compressor ramp down option drops the voltage immediately to zero, but this drop can be delayed by main­taining full load voltage for up to 20 s.
RSE 40 25 - C R 1
Rated operational current I
e
Motor Rating
5.5 kW/10 HP 11 kW/15 HP 15 kW/20 HP 18.5 kW/25 HP
25 AAC 53b RSE2225-CR1 RSE4025-CR1 RSE4825-CR1 RSE6025-CR1
Selection Guide
Control input specification
Control terminals A1 - A2 Control terminals A1 - A3
Control supply voltage Uc 24 - 110 VAC/DC ± 15% 110 - 480 VAC ± 15% Control supply current approx. 12 mA approx. 5 mA Rated frequency for AC 50-60 Hz ± 10% 50-60 Hz ± 10%
Rated insulation voltage 630 V rms 630 V rms
Overvoltage cat. III (IEC 60664) Overvoltage cat. III (IEC 60664)
Dielectric strength
Dielectric voltage 2 kVAC (rms) 2 kVAC (rms) Rated impulse withstand volt. 4 kV (1.2/50 µs) 4 kV (1.2/50 µs)
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
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