EMERSON EXD-SH2, EXD-M03 Technical Bulletin
Technical Bulletin
EXD-SH1/2 are stand-alone universal superheat and or temperature
Circuit 1
Circuit 2
EXD-SH1
Superheat or temperature control
EXD-SH2
Superheat or temperature control
Superheat Control
Other functions: Limitation of evaporating pressure (MOP), Low pressure
h EMERSON
Monitoring of sensors and detection of sensor
Optional upload/download key (accessory) for transmission of parameter
in type screw terminals included with
EXD-M03
Part No.
Multipack (pcs)
Single pack
Controllers
EXD-SH1
Controller for single refrigeration circuit
EXD-SH2
Controller for two independent refrigeration circuits
-
807856
EXD-M03
Molex terminal with 3 m wires
-
807865
Temperature sensors
TP1-NP3
Temperature sensor with 3 m cable
804489M (20)
804489
TP1-NP6
Temperature sensor with 6 m cable
804490M (20)
804490
ECN-Z60
Ultralow Temperature sensor with 6 m cable
-
807826
Pressure transmitters: PT5N (7/16-20UNF connection)
PT5N-07M
Sensing pressure range -0.8…7 bar
805350M (25)
805350
PT5N-18M
Sensing pressure range 0…18 bar
805351M (25)
805351
PT5N-30M
Sensing pressure range 0…30 bar
805352M (25)
805352
PT5N-50M
Sensing pressure range 0…50 bar
805353M (25)
805353
PT5N-150D
Sensing pressure range 0…150 bar (1/4- 18 NPT)
805379M (25)
805379
Pressure transmitters: PT5N (Brazing connection)
PT5N-07T / PT5N-07P-FLR
Sensing pressure range -0.8…7 bar
805380M / 805390M (25)
805380 / 805390
PT5N-010P-FLR
Sensing pressure range -0.8…10 bar
805391M (25)
805391
PT5N-18T
Sensing pressure range 0…18 bar
805381M (25)
805381
PT5N-30T / PT5N-30P-FLR
Sensing pressure range 0…30 bar
805382M / 805389M (25)
805382 / 805389
PT5N-50T
Sensing pressure range 0…50 bar
805383M (25)
805383
EXD-SH1/2 Controller for electrical control valves with ModBus Communication
Capability
controllers for air conditioning units or refrigeration systems.
Features
• EXD-SH1: Control of one valve
• EXD-SH2: Control of two valves in two independent circuits
• Main function
•
switch, freeze protection and manual positioning of valve(s)
• Self-adapting superheat control function in conjunction wit
EX4-8 (EX4-7-FLR) and CV4-7 series
• For multiple refrigerants, including ultralow temperature refrigerant R23
• Modbus (RTU) communication
• Integrated keyboard with two lines display
•
(ECN…/TP1…/PT5N…(FLR)) /stepper motor wiring failures
•
settings among controllers with the same setting
• Low/high superheat alarm as well as other function alarms
• Electrical connection via plug-
controller and Micro Molex EXD-M03 (must be ordered separately)
• DIN rail mounting housing
EXD-SH2
Selection table
Type
Note: Pressure range 18 bar for system with R410A, 30 bar for R410A economizer, 50/150 bar for CO
Description
- 807855
2
www.climate.emerson.com/en-gb
Part No.
Multipack (20 pieces)
Single pack
M12 Plug and cable for pressure transmitters PT5N(FLR)
PT4-M15
1.5 m
804803M
804803
PT4-M30
3.0 m
804804M
804804
PT4-M60
6.0 m
804805M
804805
PT4-M60 FLR
6.0 m - 804806
Uninterruptible Power supply
ECP-024
Backup battery with two outputs for two controllers
-
804558
K09-P00
Electrical Terminal Kit for ECP-024
-
804560
EXD-PM
Super cap for only EXD-SH1
(two pieces of EXD-PM required for one EXD-SH2)
Temperature control in normal sense
1tAL 1tst 1tAH
Temperature control in reverse sense
1tAL 1tst/ 1tAH
EXD-SH1/2 Controller for electrical control valves with ModBus Communication Capability
Accessories
Type Description
- 807854
Description of functions
Controllers are featured with a main function as superheat controller or temperature controller. The main function is selectable.
Superheat control of evaporators or economizers
This function requires the connection of temperature sensor(s) as well as pressure transmitters(s). The other functions are:
• MOP control: enables the limitation of saturated temperature of suction line (outlet of evaporator/economizer)
• Low pressure behaves similar to low pressure switch including alarm conditions
• Freeze protection is based on saturated temperature from converting measuring suction pressure. It provides alarm condition
below certain adjusted temperature.
Temperature controller
The function is to maintain desired temperature by modulating refrigerant mass flow. If controller is operated as temperature controller,
the connection of pressure transmitter is not required.
In order to fulfill varieties of the applications, the refrigerant mass flow variation can be set according temperature increase or decrease.
(A: Mass flow increases if temperature rises)
Valve opening %
100%
Temperature
0%
Examples of applications:
• Temperature control by throttling suction mass flow (normal sense, A)
• Temperature control by modulating hot gas into inlet or outlet of evaporators (reverse sense, B)
• Discharge temperature control by injecting liquid (normal sense, A)
• Head pressure control by means of temperature control (normal sense, A)
Valve opening %
100%
Temperature
0%
(B: Mass flow decreases if temperature rises)
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EXD-SH12_TB_EN_0720_R08.docx
Circuit 1 (EXD-SH1/SH2)
Electronic expansion valve circuit 1 (EXV1)
WH-white BK-black BL-blue BN-brown
*) Parameter 2uP with No. 8 = only
Download/upload key
Electronic expansion valve circuit 2 (EXV2)
WH-white BK-black BL-blue BN-brown
2 & 8
Temperature sensor circuit 1
23 & 24
RS485 (+/-terminal)
Alarm relay circuit 1 (C, NO) – Suitable for
24 VAC/DC
PT5N… circuit 1 & circuit 2
(white wire: 4…20 mA signal)
Alarm relay circuit 2 (C, NO) – Suitable for
24 VAC/DC
+ 12 VDC Voltage input for PT5N…
(brown wire)
Digital input circuit1 (DI1) – Dry contact,
potential free
Alternative ratiometric third Party Pressure
Transmitter:
Digital input circuit 2 (DI2) – Dry contact,
potential free
Pressure transmitter circuit 1 & circuit 2
(0.5…4.5 V signal)
11
+ 5 VDC voltage input
Fuse EXD-SH1 (1A), EXD-SH2 (2A)
6,12,13,
18,32-34
T
UPS for up
to two
controllers
One supercap
for one EXD
See parameter 2uP *
P
Two supercaps
for one EXD
EXD-SH1/2 Controller for electrical control valves with ModBus Communication Capability
Wiring
Wiring options: UPS (ECP-024) /Supercap (EXD-PM)
Circuit 2 (EXD-SH2)
1 & 7 Supply voltage 24 VAC/DC
3 & 8 Temperature sensor circuit 2 25 & 26
14-17
19-22
-SH1
-SH2
EXV-M… Electrical plug: wire colors
EXV-M… Electrical plug: wire colors
Pressure sensor circuit 1 is used
4 & 5
9
4 & 5
10 GND Ground
Note: No hard failure detection if ground wire of transmitter to be interrupted.
EXD-SH12_TB_EN_0720_R08.docx
27 & 28
29 & 30
31 & 30
35 & 36 Battery/Super capacitor connection terminal
Not used (Terminals on EXD-SH12)
3
EX
CV
Supply voltage
24 VAC/DC ±10%, 50/60 Hz
Mounting
DIN rail mounted
Temperatures
operating/ surrounding
0…+55°C
20…85%
non-condensing
Suitable for removable screw
Included in controller delivery
Accessory
3 m cable)
Protection class
IP 00
Housing
Self-extinguishing ABS
Compliance
EMC, RoHS,
Weight
320 g
Analogue input(s): NTC Temperature sensor
Analogue input: PT1000 Temperature sensor
TP1-N… (-45…+150°C operating range)
ECN-Z60 (-80…-40°C sensing range)
PT5N…
(total error: ≤ 1%)
Digital input(s)
Dry contact, potential free
Digital output(s): Alarm relay(s)
Contact is open: During normal operation and supply power OFF
Communication
RS485 RTU Modbus, two wires
Stepper motor output
Valves: EX4-8 (EX4-7-FLR), CV4-7
EXD-SH1/2 Controller for electrical control valves with ModBus Communication Capability
Available configuration options
R22, R134a, R507, R404A, R407C, R410A, R124,
Refrigerants
Main function Superheat or and temperature control Superheat control
Pressure transmitters PT5N… or 3rd party ratio metric PT5N….
Note:
EXD-SH1/2 IS NOT ATEX APPROVED!
Technical Data: EXD-SH1/2
R744, R407A, R407F, R23, R32, R1234ze,
R448A, R449A, R450A, R513A, R290, R1270,
R454C
Selectable Valves
R744 (CO
)
2
Power consumption
Terminals 1 to 12 Suitable for 12 poles molex plug Relative humidity
Terminals 13 to 36
Marking
Input, Output EXD-SH1/2
Analogue input(s): 4…20 mA pressure transmitters
Analogue input(s): 0.5…4.5 V pressure transmitters
Contact is closed: During alarm condition
EXD-SH1: Max. 25 VA
EXD-SH2: Max. 50 VA
version: wire size 0.14…1.5 mm2
,
Description Specification
(12 poles molex plug with
Third party ratio metric pressure transmitters
Resistive Load 24 VAC/DC, max. 1 A
Inductive Load 24 V AC, max. 0.5 A
storage
-25…+60°C
Type: EXD-M03
(to be ordered separately)
4
EXD-SH12_TB_EN_0720_R08.docx
Supply voltage
24 VAC/DC ±10%, 50/60 Hz
Protection class
IP 20
Output voltage
12 VDC
Mounting
DIN rail mounted
Temperatures
operating/ surrounding
-10…+60°C
Power consumption
12 VA
Housing
Self-extinguishing ABS
Suitable for removable screw version:
wire size 0.14…1.5 mm2
Output: to
driver/controller
Suitable for one EXD-SH1
Two EXD-PM for one EXD-SH2
Charging time
60 seconds
Weight
125 g
Max. cable length
EXD-SH1/2
Backup battery type
Lead acid gel rechargeable battery
Protection class
IP 20
Number of backup
batteries
Supply voltage
24 VAC ±10%, 50-60 Hz
Housing
Aluminum
Screw terminals
for wire size 0.5…2.5 mm2
Number of outputs to
drivers
< 90%
non-condensing
K09-U00
Part No: 804559
Temperatures
operating/ surrounding
-10…+60°C
Weight
1200 g
,
70
35
35
117,5
Ø4,3
110
1
2
5
,
5
4
5
59,5
EXD-SH1/2 Controller for electrical control valves with ModBus Communication Capability
Optional EXD-PM Supercap
Max. output current
Terminals
- 1.2 A
- 350 mA during charging
Storage
Relative humidity
between EXD-PM and
50 cm
AWG18 wire size
Marking
Optional Uninterruptible Power Supply ECP-024
2, each 12 VDC, 0.8 Ah Mounting DIN rail mounted
Output voltage, UB 18 VDC Connection
2 Relative humidity
Battery recharge time approximately 2 hours Accessories: Terminals
Storage
-20…+65°C
Marking
-20…+70°C
20…85%
non-condensing
,
Dimensions (mm)
EXD-SH1/2 or EXD-PM ECP-024
EXD-SH12_TB_EN_0720_R08.docx
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