1) Control of K1, if A10 is not used
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 Lag error message of control unit
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.9-9: Control Circuit DC Bus Short Circuit (ZKS) in the Case of Disturbed
Electronic System of Drive for HMV01.1R Supply Units With Integra‐
ted Mains Contactor
Operating Principle With
HLB01.1D
When the emergency stop pushbutton is actuated, the mains contactor in the
supply unit drops out. 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.
The mains contactor is switched off and the DC bus short circuit (ZKS) takes
effect in HMV and HLB, when
● the supply unit (Bb1 contact) outputs a drive error message
● the control unit (CNC contact) outputs an error message
● the limit switch (S2) is passed
Risk of damage to the device!
Establish connection from HMV_X32/8 to HLB_X32/7.
This avoids energy from the mains connection being supplied and the DC
bus short circuit protection device of the DC bus resistor unit HLB being si‐
multaneously active.
Bosch Rexroth AG DOK-INDRV*-SYSTEM*****-PR06-EN-P
Rexroth IndraDrive Drive Systems with HMV01/02 HMS01/02, HMD01, HCS02/03
162/309
Circuits for the Mains Connection
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