2) Drive enable (via input at control section or via master communica‐
tion); see also parameter "P-0-4028, Device control word"
A10 Emergency stop relay (example of circuit)
Bb1 Readiness for operation of supply unit
Bb Readiness for operation of drive controllers (see control section X31.1
and X31.2)
CNC Control unit of installation
K1 Integrated mains contactor
K4 Control of drive enable
S1 Emergency stop
S2 Axis end position
S4 Power Off
S5 Power On
S11, S12 Safety door monitor
ZKS DC bus short circuit
Fig.9-12: Control Circuit Without DC Bus Short Circuit (ZKS), Position-Control‐
led Shutdown by the Control Unit for HMV01.1R Supply Units With In‐
tegrated Mains Contactor
Control Circuit Emergency Stop Relay without DC Bus Short Circuit (ZKS)
Application
● If unbraked coasting to stop of the drives does not damage the installa‐
tion.
● If only asynchronous motors are connected to the supply unit.
● If the end positions of the feed axes have been sufficiently cushioned.
● If external braking devices are used.
Features
The DC bus voltage is not short-circuited.
In the case of emergency stop or when the monitors of the supply unit trigger
(e.g. mains failure), the drives are shut down according to the error reaction
set in the drive controller.
Operating Principle
When the emergency stop circuit opens, the mains contactor in the supply
unit drops out immediately. The emergency stop relay or an auxiliary contact
of the mains contactor switches off the drive enable signals. The drives are
shut down according to the error reaction set in the drive controller.
Damage to machines caused by unbraked
coasting to stop of the drives in case their
electronic system is disturbed!
Use motors with mechanical brake (a holding brake mustn't be used as serv‐
ice brake).
Sufficiently cushion end positions of feed axes.
DOK-INDRV*-SYSTEM*****-PR06-EN-P
Rexroth IndraDrive Drive Systems with HMV01/02 HMS01/02, HMD01, HCS02/03
Bosch Rexroth AG 169/309
Circuits for the Mains Connection
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