Voltage Monitoring

Description

The voltage monitoring module sends messages about over-voltage and under-voltage. The messages include device status, IO-Link events, process data and LED signaling. The following voltages are monitored:

Mathematics/Algorithm

If the device is in IO-Link operation, the undervoltage state occurs at 17 V and at 31 V for overvoltage. For voltage UA, No UA status is reported below 11 V in addition to undervoltage.

Process Data

Voltage and current monitoring – Process Data
Name	Description	Direction
Supply Monitoring	Status byte for module supplies	Input

Process data bits for Supply Monitoring

Voltage and current monitoring – Supply Monitoring PD object
Bit
7	6	5	4	3	2	1	0
Reserved	Over- voltage UA	Reserved	Over- voltage US	No UA	Under- voltage UA	Reserved	Under- voltage US

Voltage and current monitoring – Supply Monitoring PD object, values
Value	Meaning
0	No event
1	Event occured - voltage below/abowe thershold

ISDU

Voltage and current monitoring – ISDU
Name	Index	Subindex	Access	Length	Data Type	Data Storage
Voltage monitoring of module	0x00DE (222)	0	R	1 Byte		n/a
Low US		1	R	1 Byte	BOOL	n/a
Low UA		3	R	1 Byte	BOOL	n/a
No UA		4	R	1 Byte	BOOL	n/a
High US		5	R	1 Byte	BOOL	n/a
High UA		7	R	1 Byte	BOOL	n/a

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	Description	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
0x5112 (20754)	Warning	Secondary supply (UA) too low or too high ► Check for deviations in the supply.	2 – Out-of-Specification