SIEMENS
SINAMICS S150 NEMA
Engineering Information
3
Siemens D21.7
(Part 2) – 2015
3/30
Safe Brake Adapter (option K88)
Safe Brake Adapter
Option K88
Supply voltage of the
motor holding brake
230 V AC
Max. permissible current
consumption of the
• Motor holding brake
2 A
• Fast de-energization
2 A
Max, permissable cable
lengths
• to the brake
990 ft (300 m)
Max. wire size
#12 AWG
(2.5 mm
2
)
Safety Integrated
Safety Integrity Level 2 (SIL2)
acc. to IEC 61508, Performance
Level d (PLd) acc. to ISO 13849-1
and Control Category 3 acc. to
ISO 13849-1
Integration
A Safe Brake Adapter SBA is required to safely control a
motor holding brake via the Safe Brake Control (SBC) safety
function according to IEC 61800-5-2.
The Safe Brake Adapter is available for 230 V AC brake
control voltages.
It is available as option
K88
f
or SINAMICS S150.
Note: The SBA approval is currently only valid for IEC regions.
The SBA is not yet UL listed and may not be included in a UL
listed SINAMICS S150 drive.
The SBC function is controlled and monitored by the
SINAMICS Drives firmware. The control and feedback signal
regarding the switching state of the SBA relay is realized
via terminals of the Control Interface Module (CIM). The
excitation coil of the holding brake is connected directly at
the SBA.