Emerson EXD-HP1 User Manual

Operating instruction
EXD-HP1/2 Controller with ModBus
communication capability
Emerson Climate Technologies GmbH www.climate.emerson.com/en-gb Date: 17.12.2020
Am Borsigturm 31 I 13507 Berlin I Germany EXD-HP12_OI_EN_DE_RU_1220_R06_865921.docx
Manual alarm reset/clearing functional alarms (except hardware errors):
Press and together for 5 seconds. When the clearing is done, “CL”
message appears for 2 seconds.
Manual mode operation
Press and together for 5 seconds to access to manual mode operation.
List of parameters in scrolling sequence by pressing button
Code
Parameter description and choices
Min Max
Factory
setting
Field
setting
1Ho
Manual mode operation; circuit 1
0
1
0
0 = off; 1 = on
1HP
Valve opening (%)
0
100
0
2Ho
Manual mode operation; circuit 2
0
1
0
0 = off 1 = on
2HP
Valve opening (%)
0
100
0
Note: During manual operation, functional alarms such as low superheat are
disabled. It is recommended to monitor the system operation when the controller
is operated manually. Manual operation is intended for service or temporary
operation of valve at a specific condition. After achieving the required operation,
set the parameter 1Ho and 2Ho at 0 so the controller automatically operates the
valve(s) according to its setpoint(s).
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
1
PAr
Modbus parity
0
1
0
-C2
Circuit 2 of EXD-HP2 enabled
0
1
0
0 = Enabled; 1 = Disabled
-uC
Units conversion
0
1
0
0 = °C, K, bar; 1 = F, psig
This Parameter effects only the display. Internally the units are allways SI-
based.
HP-
Display mode
0
2
1
0 = No display 1 = Circuit 1 2 = Circuit 2 (only EXD-HP2)
Parameters Circuit 1
1uE
Function
0
1
1
0 = Superheat control
1 = Economizer control (Only for R410A/R407C/R32)
1u4
Superheat control mode
0
4
0
0 = Standard control coil heat exchanger
1 = Slow control coil heat exchanger
2 = fixed PID
3 = fast control plate heat exchanger (not for 1uE = 1)
4 = Standard plate heat exchanger (not for 1uE = 1)
1u0
Refrigerant
0
15
2
0 = R22 1 = R134a 2 = R410A 3 = R32 4 = R407C
5 = R290* 6 = R448A 7 = R449A 8 = R452A 9 = R454A*
10 = R454B* 11 = R454C* 12 = R513A 13 = R452B* 14 = R1234ze*
15 = R1234yf *
*) EXN not permitted
*) Warning -Flammable refrigerants: EXD-HP1/2
has a potential
ignition source and does not comply with ATEX requirements. Installation
only in non-explosive environment. For flammable refrigerants only u
se
valves and accessories approved for it!
1uP
Installed pressure sensor type
0
3
2
0 = PT5N-07… 1 = PT5N-18…
2 = PT5N-30… 3 = PT5N-10P-FLR
1uu
Start valve opening (%)
10
100
20
1u9
Start opening duration (second)
1
30
5
1uL
Low superheat alarm function
0
2
1
0 = disable (for flooded evaporator) 1 = enable auto reset
2 = enable manual reset
1u5
Superheat set-point (K)
If 1uL = 1 or 2 (enabled auto or manual reset)
If 1uL = 0 (disabled)
3
0.5
30
30
6
6
1u2
MOP function
0
1
1
0 = disable 1 = enable
1u3
MOP set-point (°C) saturation temperature
Factory setting according to selected refrigerant
(1u0). The default value can be changed
see MOP table
Code Parameter description and choices Min Max
Factory
setting
1P9
Low pressure alarm mode circuit 1
0
2
0
0 = disabled 1 = enabled auto reset
2 = enabled manual reset
1PA
Low pressure alarm cut-out circuit 1
-0.8
17.7
0
1Pb
Low pressure alarm delay circuit 1
5
199
5
1Pd
Low pressure alarm cut-in circuit 1
0.5
18
0.5
1P4
Freeze protection alarm function
0
2
0
0 = disabled, 1 = enabled auto-reset,
2 = enabled manual reset
1P2
Freeze alarm cut-out circuit 1
-20
5
0
1P5
Freeze protection alarm delay, sec.
5
199
30
1P-
Superheat control circuit 1 fixed PID (Kp factor)
Display 1/10K
0.1
10
1.0
1i-
Superheat control circuit 1 fixed PID (Ti factor)
1
350
100
1d-
Superheat control circuit 1 fixed PID (Td factor)
Display 1/10K
0.1
30
3.0
1EC
Hotgas temperature sensor source
0
1
0
0 = ECP-P30
1 = Via Modbus input
1PE
Economizer control circuit 1 fixed PID
(Kp factor) Display 1/10K
0.1
10
2.0
1iE
Economizer control circuit 1 fixed PID
(Ti factor)
1
350
100
1dE
Economizer control circuit 1 fixed PID
(Td factor) Display 1/10K
0.1
30
1.0
1uH
High superheat alarm mode circuit 1
0 = diabled 1 = enabled auto-reset
0 1 0
1uA
High superheat alarm setpoint circuit 1
16
40
30
1ud
High superheat alarm delay circuit 1
1
15
3
1E2
Positive correction of measured Hotgas
temperature.
0 10 0
Parameters Circuit 2 (only EXD
-HP2)
Code Parameter description and choices Min Max
Factory
setting
2u4
Superheat control mode
0
4
0
0 = Standard control coil heat exchanger
1 = Slow
control coil heat exchanger
2 = fixed PID
3 = fast control plate heat exchanger
4 = Standard plate heat exchanger
2u0
System Refrigerant
0
5
2
0 = R22 1 = R134a 2 = R410A 3 = R32 4 = R407C
5 = R290* 6 = R448A 7 = R449A 8 = R452A 9 = R454A*
10 = R454B*
11 = R454C* 12 = R513A 13 = R452B* 14 = R1234ze*
15 = R1234yf *
*) EXN not permitted
*)
Warning -Flammable refrigerants: EXD-HP1/2 has a potential
ignition source and does not comply with ATEX requirements. Installa
tion
only in non
-explosive environment. For flammable refrigerants only use
valves and accessories approved for it!
2uP
Installed pressure sensor type
(When DI2 is off)
0
3
1
0 = PT5N-07… 1 = PT5N-18…
2 = PT5N-30… 3 = PT5N-10P-FLR
2uu
Start valve opening (%)
10
100
20
2u9
Start opening duration (second)
1
30
5
2uL
Low superheat alarm function
0
2
1
0 = disable (for flooded evaporator) 1 = enable auto reset
2 = enable manual reset
2u5
Superheat set-point (K)
If 2uL = 1 or 2
(enabled auto or manual reset)
If 2uL = 0 (disabled)
3
0.5
30
30
6
6
2u2
MOP function
0
1
1
0 = disable 1 = enable
2u3
MOP set-point (°C) saturation temperature
Factory setting according to selected refrigerant
(2u0). The default value can be changed
see MOP table
2P9
Low pressure alarm mode circuit 2
0
2
0
0 = disabled 1 = enabled auto reset
2 = enabled manual reset
2PA
Low pressure alarm cut-out (bar) circuit 2
-0.8
17.7
0
2Pb
Low pressure alarm delay (sec) circuit 2
5
199
5
2Pd
Low pressure alarm cut-in (bar) circuit 2
0.5
18
0.5
2P4
Freeze protection alarm function
0
2
0
0 = disable, 1 = enable auto-reset,
2 = enable manual reset

Emerson EXD-HP1 Specifications

General

Brand	Emerson
Model	EXD-HP1
Category	Controller
Language	English