Emerson EXD-SH2 - Wiring Options and Connections; Wiring Configurations Overview; Terminal Pinouts and Functions; Power Supply and Warnings

Operating instructions
EXD-SH1/2 Controller with ModBus communication
capability for electrical control valves
Emerson Climate Technologies GmbH www.climate.emerson.com/en-gb Date: 29.07.2020
Am Borsigturm 31 I 13507 Berlin I Germany EXD-SH12_OI_EN_DE_FR_IT_PL_RU_0720_R04_865917.docx
List of parameters in scrolling sequence by pressing
button:
Code Parameter description and choices Min Max
Factory
setting
H5
Password
1
1999
12
Adr
ModBus address
1
127
1
br
Modbus baudrate
0
1
0
PAr
Modbus parity
0
1
0
-C2
Circuit 2 of EXD-SH2 enabled
0
1
1
0 =Disabled 1 = Enabled
-uC
Units conversion
0
1
0
0 = °C, K, bar 1 = F, psig
Circuit 1 Parameters
1Fct
Function
0
2
0
0 = Superheat control 1 = Temperature control normal sense
2 = temperature control reverse sense
1u4
Control Mode
0
3
0
0 = standard 1 = slow
2 = intermediate control 3 = adjustable fixed PID
1u0
Refrigerant type
0
19
1
0 = R22 1 = R134a 2 = R507 3 = R404A
4 = R407C 5 = R410A 6 = R124 7 = R744
8 = R407A 9 = R407F 10 = R23 11 = R32*
12 = R1234ze* 13 = R448A 14 = R449A 15 = R450A
16 = R513A 17 = R290* 18 = R1270* 19 = R454C*
1uP
Pressure sensor type
0
8
1
0 = PT5N-07x 1 = PT5N-18x 2 = PT5N-30x
3 = PT5N-50x 4 = PT5N-150D 5 = PT5N-10P-FLR
6 = Ratio metric (gauge) 7 = Ratio metric (absolute) 8 = Modbus
1Prr
Ratio metric range (bar)
3
60
30
1ut
Valve type
0
12
0
0 = EX4-6(FLR) 1 = EX7(FLR) 2 = EX8 3 = N/A 4 = N/A
5 = N/A 6 = N/A 7 = N/A 8 = N/A 9 = N/A
10 = CV4 11 = CV5-6 12 = CV7
1uF
Valve scaling (%)
5
100
100
1uu
Start opening (%)
0
100
10
1u9
Start opening duration (s)
0
120
5
1uL
Low superheat alarm
0
2
1
0 = disabled 1 = enabled auto reset 2 = enabled manual reset
Alarm at 0.5K (if it maintains 1 min.); Alarm clear immediately at 3K
1u5
Superheat set point (K)
0.5
30
6
Range = 3-30 K if parameter 1uL is set to 1 or 2
1u2
MOP function
0
1
1
0 = disabled 1 = Enabled
1u3
MOP saturation temp (°C)
Factory setting according to selected refrigerant
(1u0). The default value can be changed
- -
(see
MOP
table)
1P9
Low pressure alarm mode
0
2
0
0 = disabled 1 = enabled auto-reset 2 = enabled manual reset
1PA
Low pressure alarm cut-out (bar)
-0.8
17.7
0
1Pb
Low pressure alarm delay (s)
5
199
5
1Pd
Low pressure alarm cut-in (bar)
-0.5
18
0.3
1P4
Freeze alarm delay mode
0
2
0
0 = disabled 1 = enabled auto-reset 2 = enabled manual reset
1P2
Freeze alarm cut-out (°C)
-5
5
0
1P5
Freeze alarm delay (s)
5
199
30
1P-
Superheat control circuit1 (Kp factor)
Display 1/10K
0.1
10
1.0
1i-
Superheat control circuit1 (Ti factor)
1
350
100
1d-
Superheat control circuit1 (Td factor)
Display 1/10K
0.1
30
3.0
1uH
High superheat alarm mode
0
1
0
0 = disabled 1 = enabled auto-reset;
1uA
High superheat alarm set point (K)
16
40
30
1ud
High superheat alarm delay (min)
1
15
3
1tSt
Temperature control set point (°C)
-80
50
4
1tbd
Temperature band (K)
1
10
2
1tAF
Temperature alarm mode
0
1
0
0 = disabled 1 = enabled
1tAL
Min. temperature alarm set point (°C)
-50
50
0
1tdL
Min. temperature alarm delay (min)
1
10
3
1tAH
Max. temperature alarm set point (°C)
-50
50
15
1tdH
Max. temperature alarm delay (min)
1
10
3
1tt
Temperature sensor type
0
1
0
0 = ECN-Nxx (-45…+40°C) / TP1-…(-45…+150°C)
1 = ECN-Z... ( -80…-40°C) for R23
Code Parameter description and choices Min Max
Factory
setting
Circuit 2 Parameters (only EXD-SH2)
2u4
Control Mode
0
3
0
0 = standard 1 = slow
2 = intermediate control 3 = adjustable fixed PID
2u0
Refrigerant type
0
19
1
0 = R22 1 = R134a 2 = R507 3 = R404A
4 = R407C 5 = R410A 6 = R124 7 = R744
8 = R407A 9 = R407F 10 = R23 11 = R32*
12 = R1234ze* 13 = R448A 14 = R449A 15 = R450A
16 = R513A 17 = R290* 18 = R1270* 19 = R454C*
2uP
Pressure sensor type
0
9
1
0 = PT5N-07x 1 = PT5N-18x 2 = PT5N-30x
3 = PT5N-50x 4 = PT5N-150D 5 = PT5N-10-FLR
6 = Ratio metric (gauge) 7 = Ratio metric (absolute)
8 = Modbus 9 = Pressure sensor circuit1 is used (1uP)
2Prr
Ratio metric range (bar)
3
60
30
2ut
Valve type
0
12
0
0 = EX4-6(FLR) 1 = EX7(FLR) 2 = EX8 3 = N/A 4 = N/A
5 = N/A 6 = N/A 7 = N/A 8 = N/A 9 = N/A
10 = CV4 11 = CV5-6 12 = CV7
2uF
Valve scaling (%)
5
100
100
2uu
Start opening (%)
0
100
10
2u9
Start opening duration (s)
0
120
5
2uL
Low superheat alarm
0
2
1
0 = disabled 1 = enabled auto reset 2 = enabled manual reset
Alarm at 0.5K (if it maintains 1 min.); Alarm clear immediately at 3K
2u5
Superheat set point (K)
0.5
30
6
Range = 3-30K if parameter 2uL is set to 1 or 2
2u2
MOP function
0
1
1
0 = disabled 1 = Enabled
2u3
MOP saturation temp (°C)
Factory setting according to selected refrigerant
(2u0). The default value can be changed
- -
(see
MOP
table)
2P9
Low pressure alarm mode
0
2
0
0 = disabled 1 = enabled auto-reset 2 = enabled manual reset
2PA
Low pressure alarm cut-out (bar)
-0.8
17.7
0
2Pb
Low pressure alarm delay (s)
5
199
5
2Pd
Low pressure alarm cut-in (bar)
-0.5
18
0.3
2P4
Freeze alarm delay mode
0
2
0
0 = disabled 1 = enabled auto-reset 2 = enabled manual reset
2P2
Freeze alarm cut-out (°C)
-5
5
0
2P5
Freeze alarm delay (s)
5
199
30
2P-
Superheat control circuit2
0.1
10
1.0
(Kp factor), fixed PID Display 1/10K
2i-
Superheat control circuit2 (Ti factor),
fixed PID
1
350
100
2d-
Superheat control circuit2
0.1
30
3.0
(Td factor), fixed PID Display 1/10K
2uH
High superheat alarm mode
0
1
0
0 = disabled 1 = enabled auto-reset;
2uA
High superheat alarm set point (K)
16
40
30
2ud
High superheat alarm delay (min)
1
15
3
2tt
Temperature sensor type
0
1
0
0 = ECN-Nxx (-45…+40°C) / TP1-…(-45…+150°C)
1 = ECN-Z60 ( -80°C…-40°C) for R23
*) Warning -Flammable refrigerants:
EXD-SH1/2 (EXD-PM, ECP-024) has a potential ignition source and does not
comply with ATEX requirements. Installation only in non-explosive
environment. For flammable refrigerants only use valves and accessories
approved for it!
MOP default value table:
Refrigerant
Default (C°)
Refrigerant
Default (C°)
Refrigerant
Default (C°)
R22
+13
R744
-5
R449A
+12
R134a
+15
R407A
+10
R450A
+19
R507
+7
R407F
+10
R513A
+13
R404A
+7
R23
-40
R290
+15
R407C
+15
R32
+15
R1270
+15
R410A
+15
R1234ze
+24
R454C
+17
R124
+50
R448A
+12