The RUIJING soft start
controller - RJ-ASSU**0P7 provides an effective solution in
reduction of start-up current, typically up to *0%, but still
provides full startup torque for compressors and motors. Across the
line starting of air-conditioner compressor or induction motors is
accompanied by inrush currents up to **8 times higher than running
current, and starting torque up to 3 times higher than running
torque. The increased unnecessary torque results in sudden
mechanical stress on the machine which leads to increased wear and
higher service costs and reduced service life. Moreover, the high
inrush current and current peaks may stress the power supply system
to increased mains and generator loads which may lead to voltage
dips results in breaking down of other valuable equipment or system
function.
RJ-ASSU**0P7 is an
embedded design air-conditioner (for single phase power system)
soft start controller. It regulates the start-up voltage of the
compressor/motor intelligently to effectively reduce the inrush and
surge current while starting-up, thus consume much less power from
the public utility network or on-site AC power supply system but
still provides full startup torque for compressors and motors.
RJ-ASSU**0P7 effective limits the inrush current and so improves
stability of the power supply and reduces transient voltage drops
that may affect or break down other loads. This will eliminate the
need of over dimension of the power supply system which results in
reduce capital expenditure investment in power supply capacity,
charge meter, circuit breaker and power wire line capacity etc..and
extend the service life of the motor or compressor
effectively.
RJ-ASSU**0P7 is a compact
size, light weight cost effective soft start controller with fire
proofed housing and sealed by resin make it capable to resist
extreme weather and survive in harsh environment (air-conditioner
outdoor unit), this makes RJ-ASSU**0P7 a cost effective solution
with high reliability and stability.
Features:
Limits inrush currentEliminates current surges & voltage
dropsExtends motor/compressor service life with built-in electronic
overload protective relayIntegral bypass contactor reduces heat
generationProduces smoother starts and stops by controlling
torqueReduces vibration and mechanical damageRelieves shock and
drive train stress on startupEasy to wire and install and decreases
equipment downtime High reliability and long life
Specification:
Electrical:Nominal Working Voltage: **0Vac (**7~**6Vac), single
phaseMaximum continuous working voltage: **6VAC.Maximum continuous
working current: *2AOver Current limit: *0A/1 minuteMaximum
non-repetitive inrush current: **0A (<*0 ms).Maximum surge
current: **0A (<**0 ms).Soft start-up time: 1±0.5sCurrent
consumption: *8mA (Capacitive **0VAC)Power consumption: less than
*5VAOperation hours: better than *5,**0 hours (rated working
temperature)Effective soft start on/off service: >**0,**0 times
(soft start interval not less than 3 minutes)Protection:The
insulation resistance between housing and chassis: > **0 M
Ω.Withstand voltage between housing and chassis: >***0 VAC in 1
minute.Shock resistance better than **0m/s2 and *1ms.Anti
vibration: *0~*5mm(double amplitude, 1.5mm)Protection restart time
interval: *0 secondEnvironmentWorking temperature: **0 to *5
ºC.Working Humidity: 0~*5% RH (<*0 ºC). MechanicalController
housing made by non-flammable plasticPackaged and sealed by epoxy
resin with excellent durable to severe environmentDimension: **7 mm
× *8 mm × *0 mm Weight: **0g
e)
Application
Air-conditioner (apply to single-phase **0V 6P/7P)Preparation:
Additional start-up capacitor, **0~**0uF/**0VAC, CD*0 type or
other suitable type, please refer to wiring instruction.Additional
bleeder resistor, *5K ohm, 2 watt, carbon film resistor: if current
A/C start-up capacitor already has bleeder resistor then is not
needed, please refer to wiring instruction.Additional AC contactor
for proper control of A/C, if needed make sure selects suitable
voltage and current rating of AC contactor.#**0 Terminal,
FemaleSuitable AC power wireNo special tool is required
DEFINITIONS AND INTERPRETATIONS of WIRING INSTRUCTION
AC:
Alternate
Current A/C:
Air-Conditioner C:
Air-conditioner compressor power input terminal R:
Air-conditioner compressor running coil terminal S:
Air-conditioner compressor start-up coil terminal Live:
Live wire of Utility AC power
supply Neutral:
Neutral wire of Utility AC power supply G:
Ground
(chassis ground) ON:
Control voltage signal send out from A/C control board to signals
the compressor to turn on and off. This signal can be high voltage
(**0~**0Vac/**0~**0Vac) or low voltage ac/dc
signal. AC Contactor: The AC
Contactor in your A/C unit, also known as the contact switch, to
provide large AC power to energize/de-energize compressor coil by
the ON signal sent out by A/C control board (thermostat)
You should know about "ON" signal and "AC Contactor" of your
A/C before start:
"ON" signal
The "ON" signal or
voltage is the control signal output by the A/C thermostat of the
main control PC board of A/C, to control compressor on or off
either send to compressor directly or via AC Contactor to energize
and de-energize the compressor coil.
AC Contactor
The air conditioner AC
Contactor is basically a switch that is located in the condensing
unit (outdoor unit) to control compressor on/off. The "switch"
consists of a control coil, a metal plunger, and one or more sets
of electrical contacts. The control coil has a voltage rating,
normally be written on the coil itself. The control voltage can be
*2/*4 VAC/DC or A/C working voltage (**0~**0Vac/**0~**0Vac). When
control voltage - "ON" signal is supplied to the AC Contactor coil
will control the compressor to turn on and off during
operation. Due to soft start
controller RJ-ASSU**0P7 only accept "ON" signal equal to working
voltage at ******5VAC range (same as compressor working voltage),
therefore base on different type of "ON" signal maybe of your A/C
unit (see below), please refer to appropriate Wiring Instruction
base on your A/C condition.
The "ON" signal is the same with A/C working voltage, between
******5VAC ranges, from the A/C control board send to compressor
directly without AC contactor, please refer to Wiring Instruction
A.The "ON" signal is the working voltage between ******5VAC ranges,
from the A/C control board (maybe via a small replay on board) send
to AC Contactor coil to control compressor on and off, please refer
to Wiring Instruction B.The "ON" signal is a low AC/DC voltage or
out of ******5VAC ranges, from the A/C control board sends to AC
contactor coil to control compressor on and off, please refer to
Wiring Instruction C.
NOTE!!! ON signal to KM*6 must
from LIVE wire (Hot) and in phase with Live wire connect to
compressor C terminal! NOTE!!! KM*6 Acceptable Working
Voltage is Live between ******5VAC! NOTE!!! LIVE and NEUTRAL wire
must connect to Soft Start Controller correctly!
