Hydraulic Power Unit (HPU) Controller
What is a Hydraulic Power Unit (HPU) Controller?
The IHP24-A and IHP24-AF includes a built in software feature for hydraulic power unit control. By monitoring system pressure, the positioner automatically regulates the hydraulic pump to keep pressure within the specified range.
In addition, the HPU control continuously monitors oil temperature and tank levels. If limits are exceeded, the pump is safely shut down to prevent damage. This feature can be used as a dedicated HPU controller or in combination with valve positioning functions.
Key benefits
Features and benefits from Val Controls Hydraulic Power Unit (HPU) Controller.
Pressure monitoring with alarms
Ensures reliable operation through low and high pressure warnings.
Oil level and temperature supervision
Protects the system by shutting down the pump in case of high temperature or low oil level.
Pump protection
Prevents overload and reduces wear, by extending the pump’s service life.
Universal compatibility
Can be used with all types of hydraulic pumps.
Real-time pump status
Live information provides a clear overview of system performance.
High-limit alarms
Immediate notification if safe operating limits are exceeded.
Concept of Intelligent HPU Control

How it works
The HPU Controller comes as standard with the following control and communication options:
- 4-20mA with HART
- Modbus
The HPU Controller accepts the following signal types:
- 4-20mA - 2-wire sensor
- Switch input
The HPU Controller is always on auto-mode when in use.
During set-up and troubleshooting it is possible to use the following control modes:
- Always on/off
- Manual
- Local control panel
- The HPU is powered through a 24VDC power supply.
- Safety timer available

