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
1/7
IHP24
Troubleshooting
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...
