Val Controls IHP24 Troubleshooting Manual Download Page 7

 
 

 

DHP-UM-026 

Val Controls A/S 

 Limfjordsvej 3 

 DK-6715 Esbjerg N 

 Tel. +45 7547 0600 

 Fax +45 7547 0611 

[email protected] 

 www.valcontrols.com 

Revision: 2 

 

 

7/7 

3

 

Tips and tricks 

3.1

 

ValConnect 

In order to make Val Controls support more efficient it is recommended to “read” out the 
configuration data from the IHP24 through ValConnect, export the configuration and mail it to Val 
Controls. 

3.2

 

4-20mA loop 

When troubleshooting a 4-20 mA loop it is generally a good idea to 

1.

 

Break the loop 

2.

 

Connect a loop calibrator to the position transmitter and verify that a signal is transmitted 

3.

 

Connect a loop calibrator to the receiver and verify that a signal is measured 

3.3

 

Factory reset 

If “troubleshooting” does not help you, a factory reset might be necessary. After a reset, the IHP24 
shall be reconfigured. 

Summary of Contents for IHP24

Page 1: ...DHP UM 026 Val Controls A S Limfjordsvej 3 DK 6715 Esbjerg N Tel 45 7547 0600 Fax 45 7547 0611 vc valcontrols com www valcontrols com Revision 2 1 7 IHP24 Troubleshooting ...

Page 2: ...Esbjerg N Tel 45 7547 0600 Fax 45 7547 0611 vc valcontrols com www valcontrols com Revision 2 2 7 Table of contents 1 Identification 3 2 Basic trouble shooting 4 2 1 Valve configuration 4 2 2 Position feedback 4 2 3 Control loop 5 2 4 Transmitter loop 5 ...

Page 3: ...ct information Name Company Phone Mail Nos are printed on device name plate Software ID Software version On the IHP24 keyboard push Status 2 Identification System information Actuator type Hydraulic Pneumatic Rotary Linear Position sensor mounted on the actuator 4 20mA passive 4 20mA active Potentiometer Sensor model only for 4 20mA Problem description Model no Serial no ...

Page 4: ...can stay put 2 2 Test the position feedback By manual calibration operate the actuator and note the ADC values shown on the screen Push Calibration 2 Manual ADC value at open ADC value at approx 50 travel ADC value at close If both values are less than 100 1 Check that the IHP24 is configured with correct position input 2 Check sensor wiring 3 Check if the 4 20mA sensor is active or passive Active...

Page 5: ...rator Push Status 1 Live status and push down arrow down until SP mA is shown From DCS or loop calibrator IHP24 Live menu SP mA 4mA 20mA If signals are 0 mA 1 Check wiring If 4 mA and 20 mA signals are off 1 Perform a signal calibration of AI0 Control loop See IHP24 manual 2 4 Test the transmitter loop AO0 Verify that the position signal transmitted from the IHP24 and the position signal received ...

Page 6: ...S Limfjordsvej 3 DK 6715 Esbjerg N Tel 45 7547 0600 Fax 45 7547 0611 vc valcontrols com www valcontrols com Revision 2 6 7 If 4 mA and 20mA signals are off 2 Perform a signal calibration of the transmitter loop See IHP24 manual ...

Page 7: ...the IHP24 through ValConnect export the configuration and mail it to Val Controls 3 2 4 20mA loop When troubleshooting a 4 20 mA loop it is generally a good idea to 1 Break the loop 2 Connect a loop calibrator to the position transmitter and verify that a signal is transmitted 3 Connect a loop calibrator to the receiver and verify that a signal is measured 3 3 Factory reset If troubleshooting does...

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