EUCHNER EKS FSA with USB Interface - Manual (Page 15)

Manual EKS Electronic-Key Adapter USB
094485-04-11/13 Subject to technical modifications Page 15/44
6 Electrical connection
Attention!
If connected incorrectly, the Electronic-Key adapter may be damaged.
 Observe electrical characteristics and terminal assignment (see section 4).
 When installing connections, the operating organization must ensure compliance with the EMC
safety requirements in accordance with EN 55011 and EN 61000-6-2.
 Do not lay connection cables in the immediate vicinity of sources of interference.
6.1 USB connection
The interface for the Electronic-Key adapter is compatible with the standards USB 1.1 and USB 2.0.
Information!
 Only a USB 1.1 or USB 2.0 cable with a maximum length of 3 m is allowed to be used for the
connection cable.
 The Electronic-Key adapter must always be connected to the same USB port to ensure the correct
allocation of the virtual COM port in Windows
®
-based systems.
 If a USB hub is connected in between, or the Electronic-Key adapter must be moved, a new COM
port allocation must be made. This action can only be performed with administrator rights (only for
Windows
®
).
6.2 Connection of the semiconductor switching outputs (only for EKS
FSA)
Warning!
Incorrect connection or errors in the safety-related integration of the EKS FSA can lead to fatal injury.
For this reason, observe the following safety aspects:
 It is not possible to generate a safe signal by using only the switching contacts LA1/LA2 and
LB1/LB2. Safe, downstream evaluation is always necessary (e.g. using a safety relay). Use of the
switching contact LB1/LB2 as an alternative to the data line is optional.
 The safe evaluation must always be dual-channel. For this purpose, there are two alternatives:
•
Evaluation of switching contact LA1/LA2 as channel LA together with an evaluation of the data
line as channel LB (recommended)
•
Evaluation of switching contact LA1/LA2 as channel LA together with switching contact LB1/LB2
as channel LB
 If possible, integrate the EKS FSA as defined in the following connection examples from
EUCHNER.
Information!
With EKS version FSA, safe shutdown can be achieved by the dual-channel feature according to
category 3 as per EN ISO 13849-1. For this purpose a safe evaluation must be included downstream.
The machine must be reset to a safe operating mode after removal of the Electronic-Key, i.e. automatic
mode with closed safety guard. For this safe shutoff, Performance Level PL d can be achieved in the
overall system.
Attention!
The power is supplied via the USB connection. If the power supply drops below 4.5 V or exceeds 5.5 V,
the switching contacts LA1/LA2 and LB1/LB2 are switched off.