Beckhoff EK1960 Series, Operating Instructions Manual

Page: 13 / 145

Product description
EK1960 13 Version: 1.3.1
3 Product description
3.1 General description
EK1960 – TwinSAFE-Compact-Controller
The EK1960 is a TwinSAFE controller with 20 fail-safe inputs and 24 fail-safe outputs. The EK1960-2600
and EK1960-2608 variants feature an additional four relays, each with one make contact.
The EK1960 TwinSAFE compact controller is suitable for safety applications up to SIL 3 according to
IEC 62061 and IEC 61508 and up to Cat. 4, PL e according to EN ISO 13849-1:2015. (See following list for
restrictions):
• The single-channel relay output is suitable up to Cat. 2, PL d
• The two-channel relay output (use of two relay contacts in series) is suitable up to Cat. 3, PL d or Cat.
4, PL e, depending on the number of actuations. Cat. 4, PL e requires an actuation at least once per
month, Cat. 3, PL d at least once per year.
• The safe input for the safety mat operation mode is limited to Cat. 2, PL d.
Special proof tests are not necessary during the entire lifetime of the EK1960 on account of the high level of
diagnostic coverage.
The EK1960 can be used in three different application cases:
• As a stand-alone TwinSAFE compact controller without the use of an EtherCAT network with 20 inputs
and 24 outputs. An extension with terminals to the right of the EK1960 on the E-bus is not possible in
this operation mode.
• As a TwinSAFE compact controller integrated into an EtherCAT network. The EK1960 can be
extended with standard and safety terminals on the E-bus connection and via the EtherCAT network.
• As a TwinSAFE I/O module. The logic on the TwinSAFE compact controller is not used. The coupler
can be addressed by a TwinSAFE logic terminal as an I/O module with 20 inputs and 24 outputs.
The inputs of the EK1960 can be used as digital 24 V inputs. They can be fed to the safe input either with
static 24 V
DC
or with a clock from one of the TwinSAFE outputs of the EK1960 or via an external clock source
via, for example, a switch contact. Inputs 17 to 20 can additionally be switched to a safety mat operation
mode (
Bumper Mode On) . Only safety mats operating according to the resistance-change principle are
supported. The safety mats can also be cascaded in accordance with the manufacturer's specifications. The
inputs can be parameterized in groups of two.
The outputs can be parameterized in groups of four. It is possible to set the mark-to-space-ratio and the
activation as a clock source for the safe inputs.