Definitions - Kendrion EEX Series Operating Instructions Manual

9. Definitions

(based on: DIN VDE 0580:2011-11, not exhaustive)
Switching torque M
1
Rated torque M
2
Transmissible torque M
4
Residual torque M
5
Load torque M
6
Switching work W
Maximum switching work W
Switching power P
Maximum switching power P
Coil ON time t
5
Coil OFF time t
6
Total cycle time t
7
Duty cycle
Switching operation
Switching frequency Z
Response delay during coupling t
Rise time t
12
Coupling time t
1
Response delay during disconnection t
Fall time t
22
Disconnection time t
2
Slip time t
3
Making time t
4
Operating condition at operating temperature
torque acting on the shaft during brake or clutch slip
switching torque specified by the manufacturer to identify the brake.
The rated torque M
the maximum switching torque M
response.
highest torque that can be applied to the engaged brake or clutch
without causing the brake/clutch to slip
torque transmitted by the released brake or clutch
torque acting on the drive of the engaged brake or clutch; determined
by the power requirement of the driven machine at a given speed
heat generated by friction inside the brake or clutch as a result of the
switching operation
maximum switching work to which the brake or clutch may be exposed
max
switching work converted into heat per unit of time
maximum permissible switching work converted into heat per unit of
max
time
time between power on and power off
time between power off and power on
coil ON time plus coil OFF time
percentage relationship of coil ON time to total cycle time
one complete switching on and off operation
number of regular switching operations per hour
time between power off (releasing systems) or power on (engaging
11
systems) and beginning of torque increase
time it takes to reach 90% of the M
of the torque increase
response delay t
time between power on (releasing systems) or power off (engaging
21
systems) and beginning of torque decrease
time it takes for the torque from the beginning of the torque decrease
to fall to 10% of the M
response delay t
time from the beginning of the torque increase up to the end of the
braking process (brakes) or until the synchronization torque M
been reached (clutches)
response delay t
condition at which the steady-state temperature is reached. The
operating temperature corresponds to the overtemperature according
to DIN VDE 0580 plus the ambient temperature. Unless otherwise
specified, the ambient temperature is 35°C.
Operating Instructions BA 76..G..B00 // Last updated: 13/03/2020 // Page 28 of 34
is the mean value of at least 3 measurements of
2
after completion of the transient
1
rated torque from the beginning
2
plus rise time t
11 12
rated torque
2
plus fall time t
21 22
plus slip time t (braking or acceleration time)
11 3
has
3