Disassemble the controller card

DANGER
	Danger to life from touching electrical connections! Electrical terminals and connectors carry voltages that may cause death or serious injury upon contact. The teminals of the DC circuit capacitors (UZP, UZN) on the front panel of the device may retain hazardous DC voltage for up to 5 minutes after switching off the device! In OFF state, the LED indicators on the device front panels do not indicate the voltage status of the terminals. Steps to prevent: Provide shock-hazard protection Prior to any work on the device: Turn off the main switch to disconnect the power supply, and secure switch against being turned on again. Wait at least 5 minutes for components to discharge. Connection or disconnection of terminals is only allowed if they are free of voltage. Measure the terminals voltage to verify that the terminal is de-energized. One suitable measuring point is the DC bus between the UZP and UZN terminals. If the PE connection between the modules is open, avoid touching the casing since dangerous voltages may be present. During the proper operation of the there is an earth leakage current of more than 3.5 mA. In this case, the standard requires that the devices be firmly connected to PE. The PE conductor must have a cross section of at least 10 mm². Do not connect, disconnect and/or install the electrical lines (terminal cables, plugs, sockets) and optional modules until they have been electrically de-energized.

DANGER

Danger to life from touching electrical connections!

Electrical terminals and connectors carry voltages that may cause death or serious injury upon contact. The teminals of the DC circuit capacitors (UZP, UZN) on the front panel of the device may retain hazardous DC voltage for up to 5 minutes after switching off the device!

In OFF state, the LED indicators on the device front panels do not indicate the voltage status of the terminals.

Steps to prevent:

Provide shock-hazard protection
Prior to any work on the device: Turn off the main switch to disconnect the power supply, and secure switch against being turned on again.
Wait at least 5 minutes for components to discharge.
Connection or disconnection of terminals is only allowed if they are free of voltage.
Measure the terminals voltage to verify that the terminal is de-energized. One suitable measuring point is the DC bus between the UZP and UZN terminals.
If the PE connection between the modules is open, avoid touching the casing since dangerous voltages may be present. During the proper operation of the there is an earth leakage current of more than 3.5 mA. In this case, the standard requires that the devices be firmly connected to PE. The PE conductor must have a cross section of at least 10 mm².
Do not connect, disconnect and/or install the electrical lines (terminal cables, plugs, sockets) and optional modules until they have been electrically de-energized.

NOTICE

Material Damage!

Electronic components could be destroyed through static discharge!

Therefore touching of the electrical connections (e. g. signal and power supply cable or option and controller cards) must be avoided. Otherwise you can be damaged the components when touching by static discharge.

Steps to prevent:

Avoid touching electrical connections and contacts.

Remove all connectors on the front side and the top side of the controller card.
Remove all connections on the optional card if there are any.
Loosen the collar screw below of the controller card and of the optional card is existing (2 collar screws each).
Pull the controller card and optional card as a unit out of the card slot.
Place the card(s) only on a non-conducting, padded surface.