Voltage and Current Monitoring¶
Description¶
The voltage and current module sends messages about over-current, short-circuit, wire breakage, over-voltage and under-voltage. Over-voltage and under-voltage detection starts a timer. If the timer has expired and the voltage level has not returned to the normal operating voltage threshold, the module sends out the messages.
The messages include device status, IO-Link events, process data and LED signaling.
Mathematics/Algorithm¶
In SIO mode the threshold for undervoltage is 17V and for overvoltage is 32V.
If the device is in IO-Link mode, undervoltage occurs at 17V
and overvoltage occurs at 32V.
Process Data¶
| Object ID | Name | Description | Direction |
|---|---|---|---|
| 0x0017 (23) | Undervoltage | TRUE = the voltage level is below the threshold value. | Input |
| 0x0018 (24) | Overvoltage | TRUE = the voltage level is above the threshold value. | Input |
Also see section Process Data Profiles.
ISDU¶
With the parameter Voltage Monitoring Detection Time Duration is possible to change the time between the detection of over/under voltage and the reporting of the event. (This parameter is used to eliminate unstable (transition) state as a filter)
| Name | Index | Subindex | Access | Length | Data Type | Data Storage | Default |
|---|---|---|---|---|---|---|---|
| Voltage Monitoring Detection Time Duration | 0x2200 (8704) | 0 | R/W | 2 bytes | UINT16 | Yes | 10 (ms) |
Voltage Monitoring Detection Time Duration¶
This parameter is used to define how long the under-voltage or over-voltage must be present before it is displayed. The unit is given in milliseconds. The values must be in the range between 10 and 1000. The default value is 10 milliseconds.
System Commands¶
| Command Value | Device Action |
|---|---|
| 0x81 (129) | Application Reset – Resets the Voltage Monitoring Detection Time Duration with ISDU-index 0x2200 to the default value 10. |
| 0x82 (130) | Restore Factory Settings – Resets the Voltage Monitoring Detection Time Duration with ISDU-index 0x2200 to the default value 10. |
For an overview of all System Commands, see section System commands.
Events¶
| Event Code | Event Type | Event – Description – Remedy | Device Status |
|---|---|---|---|
| 0x5110 (20752) |
Warning | Primary supply voltage exceeded ► Check for deviations in the supply. |
2 – Out-of-Specification |
| 0x5111 (20753) |
Warning | Primary supply voltage below minimum value ► Check for deviations in the supply. |
2 – Out-of-Specification |
| 0x8D0B (36107) |
Warning | Overload or short circuit at pin 2 ► Check wiring. |
2 – Out-of-Specification |
| 0x8D0D (36109) |
Warning | Incorrect load/cable breakage, analog current output pin 2 ► Check wiring or connected devices. |
2 – Out-of-Specification |
| 0x8D15 (36117) |
Warning | Overload at pin 2 ► Check wiring. |
2 – Out-of-Specification |