Siemens SINAMICS S210 - Opening Time and Closing Time; Maximum Permissible Single Switching Energy; Maximum EMERGENCY STOP Speed

The holding brakes of the 1FK2 have a torsional backlash of less than 1°. The following table
contains additional technical data regarding the holding brakes:
Motor type Holding
torque
M
4
at
120 °C
Dyn. brak‐
ing torque
M
1m
Opening
time
Closing
time
Maximum
permissi‐
ble single
switching
energy
Maximum
EMER‐
GENCY
STOP
speed
Total oper‐
ating ener‐
gy (serv‐
ice life)
M
4
/ Nm M
1
/ Nm t / ms t / ms W / J n / rpm W
max
/ kJ
1FK2☐02 0.32 0.2 50 15 7.4 8000 0.5
1FK2☐03 1.3 1.1 90 20 62 7500 5
1FK2☐04 3.3 3 110 30 268 7500 35
Holding torque M
4
The holding torque M
4
is the highest permissible torque for the closed brake in steady-state
operation without slip (holding function when motor is at standstill). The data applies for the
state at operating temperature (120 °C).
Dynamic braking torque M
1m
The dynamic braking torque M
1m
is the smallest mean dynamic braking torque that can occur
for an EMERGENCY STOP.
Opening time and closing time
The delay times that occur when switching the brake.
Maximum permissible single switching energy
The maximum permissible single switching energy of an individual EMERGENCY STOP
procedure.
After an EMERGENCY STOP with the maximum single switching energy, allow for a cooling
time of at least 5 minutes before you put the motor into operation again.
Maximum EMERGENCY STOP speed
Maximum permitted speed for a safe EMERGENCY STOP procedure.
Total operating energy (service life)
The total switching energy is the sum of the single switching energy (switching energy for each
EMERGENCY STOP procedure). If the total switching energy is exceeded, flawless
functioning of the brakes can no longer be guaranteed.
● Refurbish the motor.
Formula for calculating the operating energy per braking operation
W
BR
= ( J
Mot Br
+ J
load
) • n
mot
² / 182.4
W
Br
/ J Operating energy per braking operation
n
Mot
/ rpm Speed at which the brake is engaged
Technical specifications
8.1 Technical data and properties of the motor
SINAMICS S210 servo drive system
186 Operating Instructions, 12/2017, A5E41702836B AA