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4.2.10
Holding brake
Danger of life or high damage to property, ig‐
nition and explosion hazard due to inappro‐
priate use!
WARNING
In order to prevent danger due to ignitable gases or explosive dust-air mix‐
tures in the vicinity of the motors, the user must make sure that the holding
brake does not present a source of ignition in the normal service. For this
reason, the holding brake must never be used outside the design parameters
and operating conditions!
●
Any commissioning and maintenance works must only be carried out in
non-explosive environments.
●
The brakes must be designed so as to fulfill their function in normal
service, if they are installed and used as intended.
●
The holding brake integrated in the motor must only be used at standstill
and never as EMERGENCY STOP brake to stop the motor, see
P-0-0119, "Optimal shutdown"(IndraDrive firmware - functional descrip‐
tion).
●
The holding brake must not be used to brake or stop the motor or cou‐
pled loads from higher speeds or velocities.
MS2E motors can optionally be provided with permanent magnet brakes. The
backlash-free holding brakes are operated according to the "electrically-re‐
leased" principle (closed-circuit principle) and open upon applying the switch‐
ing voltage.
●
Number of operating cycles ≥ 5,000,000
●
The holding brakes with emergency stop function are intended to secure
motor shafts at standstill. The holding brakes are no operation brakes to
decelerate motors in operation from speed.
●
Emergency stop situations are not a normal operation.
●
In case of an emergency stop or voltage drop, the brake operation is on‐
ly allowed to a limited extend. Up to 500 breaking cycles from speed
3000 1/min can be performed, whereas the maximum switched energy
per emergency stop of the brake must not be exceeded. The number of
brake applications per hour is 20, whereas a uniform scheduling is a
precondition. For specifications about the max. switched energy per
emergency stop, see
chapter "Technical data holding brakes" on page
●
Idle time after an emergency stop before restarting ≥ 3 minutes.
Malfunctions due to wear
CAUTION
Impermissibly high wear due to breaking from speed by exceeding the speci‐
fied emergency stop properties.
Ensure the functionality of the brake in normal operation, due to voltage con‐
trol, current monitoring, cyclic control of the brake holding torque, for exam‐
ple.
Rated voltage
The rated voltage to apply the brakes is 24 V DC (±10%).
16/65
About this product
MS2E Synchronous Servomotors acc. to ATEX Directive
2014/34/EU
Bosch Rexroth AG R911387136_Edition 02
Содержание REXROTH MS2E
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