Emerson ALCO CONTROLS EXD-U00 Guide Rapide

Emerson Electric GmbH & Co OHG
Heerstr.111 - D 71332 Waiblingen
www.alco-controls.com –
EXD-U00 Universal Driver Module is for driving ALCO stepper motor driven
electronic valves series EXV-5, -6, -7, -8.
!
Safety instructions:
• Read operating instruction 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.
• Switch off all voltages / currents before cabling.
• Comply with local electrical regulations when wiring
• Do not operate system before all cable connections are completed.
• Do not apply 110/220/230 V to any terminal of driver module
Installation and wiring
• Install electronic valve in system per operating instructions of valve. For hot
gas bypass application, install the valve as far as possible from discharge valve
of compressor. Inlet gas temperature to the valve should not exceed 80°C.
Contact ALCO for higher temperatures than 80°C.
Warning: Install valve with electrical connector in downward position.
• Install Driver Module and other external electronic devices which need to be
connected to driver.
• Set-up all wire connections as shown in wiring diagram.
• Keep separate the wires for power supply, stepper motor of valve and signal.
• Recommended wire cross section between 0.5 mm
Setting
Universal driver needs no setting except configuration by means of dip switches
for application of different valve, different analogue input signal and type of start
mode.
Function
1 2
EX5/EX6 OFF ON
EX7 ON OFF
EX8 ON ON
4-20 mA - -
Analogue
input signal
0-10V - -
Analogue
input signal
With start - -
mode
Without start - -
mode
Start-up procedure:
• Do not apply voltage to the driver before completion of wiring and setting of
dip switches.
• Do not operate the driver and valve when the system is under vacuum or
without refrigerant except for closing valve before charging of system.
• Vacuum the entire system.
Document Nr.: A6.5.072 / 2
ALCO CONTROLS
Tel.: 07151 509-0 - Fax.: -200
alcoservice@ecopeland.com
2 2
and 2.5 mm .
UB
24VAC/DC EX5/EX 6/EX7/EX8
Universal Driver module
Analogue
EXD-U024
Signal
PCN:
Digital
Rev.:
Signal
Dip-switches 24VAC/DC
1 3 4 5 6 7 8 2
Dip Switch Number
3 4 5 6 7
ON OFF ON OFF -
OFF ON OFF ON -
OFF ON ON ON -
- - - - -
- - - - -
- - - - ON
- - - - OFF
Replacement for A6.5.072 / 1
Operating Instructions
Universal Driver Module EXD-U00
for Electronic Valves EX5 ... EX8
• Warning: The valves are delivered at half open position. Do not charge system
before closure of valve in case of expansion valve and hot gas bypass
application.
• Apply supply voltage to driver module for the following times without applying
digital input signal 24Vto terminals of EXD-U00:
Valve
EX5/EX6
EX7/EX8
• After closure of valve, interrupt power supply to driver module and charge the
system with refrigerant.
• Start the system and check operating conditions.
Technical data, power supply:
• Main supply voltage: 24 V AC/DC (+10%, -15%), 50-60Hz. Power supply line
to driver to be protected by 1.0A external fuse.
• Use a safety class II transformer. Minimum power required 20VA.
• Emergency supply voltage Ub (from ECP-024): +18 Vdc.
Inputs:
• 1 analogue input 4-20mA, Burden 364 Ω, or 1 analogue input 0-10V,
impedance 27kΩ.
• 1 Digital input: 24 VAC/DC (+10%, -15%), 50-60Hz.
Output:
• 4 current-outputs for stepper motor of EX5/EX6/EX7/EX8.
Nominal current: 0.5A for EX5/EX6, 0.75A for EX7 and 0.8A for EX8.
Maximum cable length: 6 meter AWG20/22.
Uninterruptible power supply ECP-024
• Power supply voltage: 24 VAC ± 10%
• Power outputs: Two, each +18VDC
Wiring Diagram
Power management unit
ECP-024
PCN: 804 558
Rev.:
8
-
-
-
OFF
UB 24VAC/DC EX5/EX6/EX7/EX8
Universal Driver module
EXD-U024
ON
PCN:
Digital
Rev.:
Signal
Dip-switches 24VAC/DC
1 3 4 5 6 7 8 2
-
-
Input digital signal
0V= OFF
24V= ON
supplies 4-20mA or 0-10V
Date: 01.03.2004
Time, seconds
Min: 2 Max: 30
Min: 6 Max: 30
Driver I Driver I
Power output UB
optional
Power input
24 VAC
EX7/EX8
Electrical
plug
connection
EX8
EX5/EX6
Electrical
connection
EX5-Nxx
EX6
Analogue
Signal
Ground
Input analogue signal
4-20mA or 0-10V
Controller
GB
Power supply
Transformer
24 V
Fuse
1.0A
1.0A
EX7
EX5
PCN: 864752