Emerson CSS Serie Betriebsanleitung

General information and technical data:
Compressor Soft Starters of the CSS-Series are used to limit the start current of
1-phase compressors. For additional start torque a built-in start capacitor is
switched in parallel to the run rapacitor. After start it is switched off. Supply
voltage is continuously monitored. In case of undervoltage the compressor is
switched off. Restarts are delayed and indicated by a blinking greed LED. In case
of alarm a signal is indicated by the red LED. The alarm relay will be activated.
Soft starters are released for use with many compressors. (See list Fig.3).
CSS-32U for compressor motors with nominal current of 32A max.
CSS-25U for compressor motors with nominal current of 25A max.
!
Safety instructions:
• Read installation instructions thoroughly. Failure to comply can result in
device failure, system damage or personal injury.
• It is intended for use by persons having the appropriate knowledge and
skill.
• Unauthorised opening of the Soft Starter will void warranty.
• Switch off all voltages / currents before connecting wiring.
• Comply with local electrical regulations when wiring.
• Do not exceed operating temperature.
• Do not operate system before all cable connections are completed.
Setting:
• No setting required. The Soft Starters automatically limit the start current based
on the connected compressor size. Several consecutive starts are required to
learn and and optimise the start current of the attached compressor.
Mounting – Dimensions See Fig. 2:
• CSS Soft Starters are for mounting in electrical switch boards only. The
mounting clip allows convenient DIN rail fixing; for secure mounting on any
other flat surface, it has four drill holes (Ø4.5mm). The mounting clip can be
attached to the housing base in two directions, see fig. 5. Protect CSS from
direct sun light and water.
Wiring (Fig. 2):
• Perform wiring as printed on the housing. CSS Contacts:
R Output motor run winding
RC Output run capacitor
L1 230V 50/60Hz power input
• Warning: Use automatic circuit breaker F with characteristic of circuit control
C. Releasing current 25A for CSS-25U, 32A for CSS-32U.
• Warning: Do not use an additional contactor. CSS could be damaged.
• Warning: Do not connect "Crun" capacitor to the "Run" lead of the motor.
Connect it between RC and S terminals as per wiring diagram. An additional
start capacitor "Cstart" is built in the Soft Starter.
• The terminals are for flexible cable cross section 0.2 ... 4 mm
• The screws must be tightened with 0.5... 0.6 Nm.
• The wiring diagram per Fig.1 is an example how safetyfunctions can be wired.
Crun Run capacitor
F1 Circuit breaker of control circuit
F2 Discharge gas thermostat
F3 High pressure switch
F4 Low pressure switch
LED Indicator Codes
green red Alarm Rel.
ON OFF ON
blinking OFF ON
ON ON ON
ON 1 x blink ON
ON 2 x blink ON
ON 3 x blink ON
ON 4 x blink ON
ON 5 x blink ON
OFF 5 x blink OFF
OFF ON OFF
OFF OFF OFF
OFF OFF OFF
CSS__65166___R05
Compressor Soft Starter CSS-Series
S Output start winding
Uc Start input ("on" if connected to 230V)
N Neutral line
2
.
F6 Circuit breaker of motor
K1 Contactor
Q1 Main switch
R2 Crankcase heater
Message
System energized, normal operation
System energized, waiting for delay time elapsed
Systemtest after power on
Motor current too low
System cannot start caused by low voltage condition
Start winding voltage too low after start sequence
Motor current too high (32 A eff)
Start capacitor error (damaged or disconnected)
Start capacitor or run capacitor error (defect relay)
Internal error
System not energized or internal power supply defect
Main circuit breaker blown at power on
at transport can set bistable relays into wrong position. With this mode the relays will be reset to the correct position).
replaces / ersetzt R04
Operating Instructions
Operation
• After all connections are wired, supply voltage can be switched on. Green + red
LED will be on for 30 sec after power up, then blinking green LED indicates
the initial delay time of 150 sec. Then green LED on will indicate "ready for
start".
• Switch contact "Uc" to 230V (for min. 0.5 sec) starts the motor with limited
start current. The start sequence is monitored.
• If the motor does not start, it is switched-off. A restart will be delayed for 5
Min. A blinking green LED indicates the delay.
• The compressor is switched-off, when "Uc" is disconnected from 230V. A
restart will be delayed. This is indicated by a blinking green LED. After elapsed
delay time the green LED will stop blinking; a restart is possible instantly.
• For other messages see list of LED indicator codes below
Technical Data
Operating voltage
Continuous compressor current, max.
Compressor start current limited to max.
"Uc" Signal
Impedance at "Uc" input
Alarm relay, AgNi (SPDT)
Resistive (AC1) max.
Operating temperature
Storage temperature
Start capacitor (Cstart)
Cable cross section, rigid (power lines)
Flexible cable cross section (power lines)
Flexible cable cross section (alarm outp.)
Restart delay
Vibration resistance (10 ... 1000 Hz)
Protection acc. IEC 529
Standards
• Low voltage directive
• Contactors and motor-starters - AC semiconductor motor controllers and
starters
• Safety for household (pcn 805204, 805205 only)
• Electromagnetic Compatibility
• ROHS 2002/95/EC
• UL pending
• Marking:
Productinformation per EN 60947-4-2
Manufacturer:
Type codes:
Nom. operating current:
Operating voltage / Frequency: 230V nom / 50/60Hz
Operation category:
Device alternative:
Isolation voltage:
Surge voltage:
Protection acc. IEC 529
Pollution degree:
Remarks
Compressor might be ON or OFF
Blink frequency 0.5 Hz
Duration ~ 30 sec
Check wiring
Blink frequ. 2.5 Hz, 1.5 sec break between blink packages
Check wiring
Overload; locked rotor
Blink frequ. 2.5 Hz, 1.5 sec break between blink packages
Perform reset; exchange CSS if problem persists
Severe problems, device to be replaced
If energized device to be replaced
Remove compressor lines R and RC; switch power on for few sec.
Reconnect compressor and power on again. (Note: Shock and vibrations
PCN 865 724
230 V AC +10% / -15% / 50/60 Hz
CSS-25U: 25 A
CSS-32U: 32 A
45 A
230 V AC +10% / -15% / 50/60 Hz
>440 kOhm
250V~ / 3A
30V= / 3A
-20 ... +55°C
-20 ... +65°C
200 ... 240 uF
0.2 ... 6 mm
2
0.25 ... 4 mm
2
0.25 ... 2.5 mm
2
0,5 ... 5 Min.
4 g
IP 20
LVD 2006/95/EC
EN60947-4-2
EN60335-2-40
EMC 2004/108/EC
Ho335-40-2
Emerson Climate Technologies GmbH
CSS-25U CSS-32U
25A 32A max. / AC-53a; AC-58a
32A, Class 12, 60%
Hybrid motor starter with bypassed
semiconductor
2.5 kV
1.5 kV
IP-20
2
1 / 8
GB
27.08.2012