Commissioning

The EL922x is an EtherCAT Terminal with electronic overcurrent protection function. The overcurrent protection function is available at all times, i.e. as soon as the input voltage has been applied, the overcurrent protection function is active (after a successful initialization run), regardless of whether EtherCAT is present or not. The EL922x can therefore also be operated in stand-alone mode, without EtherCAT. This function enables applications where Industrial PCs, Embedded PCs or couplers with 24 V DC can be supplied and protected, which then start EtherCAT later.

	Commissioning for the first time Before the first start-up, please check the wiring and make sure that it has been carried out correctly. After the outputs have been switched on for the first time, they may trigger immediately and the push-button LED may light up red. Check the set rated current. Ensure that the power supply is high enough to ensure a safe voltage supply even in the event of a fault. Power supplies that are dimensioned too small may not only result in a voltage dip in the event of a fault, but may also lead to frequent or unintentional switching on and off. This could also lead to the destruction of the electronics. Check the process data (hardware protection) and the Diag messages for warnings that could indicate a wiring error. Also check the Ready LED and the Button LEDs for flickering. The terminal must not be operated in such a condition as this could destroy the electronics.

When commissioning for the first time without changing the parameters, the terminals are set to the factory settings.

Factory settings
	EL9221		EL9222		EL9227
	-5000	-6000	-5500	-6600	-5500	-6600
Nominal Current	4 A	2 A	4 A / 4 A	2 A / 2 A	4 A / 4 A	2 A / 2 A
Channel Status	Off		Off		Off
Characteristic	standard		standard		standard
Current-Level Warning	90%		90%		90%
Fuse Init State	Last State		Last State		Last State
Input Functions (DI&Switch)	Reset, On/Off		Reset, On/Off		Reset, On/Off
Overvoltage Behaviour	Tripping, auto-reset		Tripping, auto-reset		Tripping, auto-reset
Undervoltage level	Not available		Not available		17 V
Reverse Current Filter	standard		standard		standard
Switch Programming Control	Enable		Enable		Enable
Switch On Channel Delay	Not available		Not available		Disable
Dig Safe State Active	FALSE		FALSE		FALSE
Dig Safe State Value	FALSE		FALSE		FALSE

	Lock settings with password protection It is possible to use object 0xF009 (password protection, data type UINT32) to protect user parameter data from accidental access. The password protection prevents accidental overwriting of the parameters, for example. The protection is enabled with password 0x12345678 and remains active until it is disabled with the password 0x11223344. Object 0xF009 also indicates whether password protection is enabled or disabled. Protection is enabled if the object has the value "1" and disabled if the value of the object is "0". If protection is enabled, write access to objects 0x80n0 and 0x80n1 is not possible, and the parameters are retained. This also applies if the factory settings of the terminal are to be restored via object 0x1011 or via the LED buttons on the device. When the terminal is reset, e.g. by de-energizing it, the protection remains enabled. The password protection is noted in the terminal until it is disabled.

Notice

Permanent reset, Permanent switch-on/switch-off

A permanently applied reset process and continuous switching on and off of the supply voltage is not permitted. This could lead to destruction of the electronics.

Notice

Restart delay

EL9221 / EL9222
If another tripping event takes place within 15 seconds after a 10-second restart lock has elapsed, the cooling time is extended by an additional 10 seconds. If another tripping event takes place within 15 seconds after the 20-second restart lock has elapsed, the restart lock is extended by another 10 seconds. This process is continued as required, but only up to the maximum restart time of 60 seconds. If another tripping event does not take place within 15 seconds after a tripping event, the cooling time remains at 10 seconds.
EL9227
The restart time depends on the internal temperature of the terminal. If the temperature rises, the restart time can be increased accordingly.

Notice

Delay time

The delay time describes the feedback of the hardware to the switching process.
However, the switching process is carried out immediately.

Notice

Open Load Detection

The EL9227 terminals are equipped with Open Load Detection.
This means that it is checked whether there is a possible wire break at the output of the terminal. This function is available when the output is switched off. If a voltage in the range of typ. 0.7 to 0.8 V is displayed at the output although it is switched off, this is the Open Load Detection. The voltage is measurable, but no high current can be sourced. This is the indication that the wiring is open, e.g. a wire break, or that nothing is connected to the output.

CAUTION

Danger for persons, the environment or devices!

Note that changing output values can have a direct effect on your automation application. Special precautions must therefore be taken in the plant or machine to prevent automatic restarting of plant components (see Machinery Directive 2006/42/EC and EN60204-1)!
Only modify these output values if you are certain that the state of your equipment permits it, and that there will be no risk to people or to the machine!
In the event of a fault (short circuit/overload), the load circuit is electronically switched off by the overcurrent protection terminal.

Further Information