Rexroth Diax 04 HVE/HVR
Instructions for Use
5-7
DOK-DIAX04-HVE+HVR*UL*-IB01-EN-P
X2
X3
X4
X7
ZKS
OFF
ZKS
OFF
X3
1
2
3
4
5
6
ZKS
ON
OFF
ON
ON
R01hva1B.fh7
X0
Fig. 5-14:
Terminal assignment X3
The DC bus brake switching is activated via plug-in terminal X3 and the
mains contactor in the power supply unit is switched:
If input “ZKS" is open, the DC bus short circuit is activated.
Only with closed input (Power) "OFF" can the power contactor in the
power supply unit be switched on. If input "OFF" is open, the power
contactor in the power supply unit is immediately switched off.
If the inputs "ZKS" and "OFF" are closed and the unit is internally ready
for operation, the power contactor in the power supply unit is switched on
while the input "ON" is closed.
The ON impulse must be applied for at least 4 s.
Power supply
unit
Voltage (DC) [V]
Break-away starting
current [A]
Holding current
[A]
HVE02 / 03
24
8
0,45
HVE04
24
20
1
HVR
24
8
1
Fig. 5-15:
Technical data of the DC bus
As an additional installation protection in the event of drive electronic
problems, the DC bus is short-circuited with an open DC bus input.
Motors with permanent magnet excitation can, in this case, still be
shutdown in a controlled manner.
WARNING
Injury to the personnel due to uncontrolled
drive movements!
⇒
In the event of faults in the drive and supply unit,
uncontrolled drive motions are still possible even if
the DC bus circuit is activated. Therefore provide
additional monitoring and protective equipment to the
system.
Note:
As the energizing current of the mains contactor flows via the
emergency stop chain, the voltage drop must not become too
great. To ensure a reliable energizing, the total resistance of
the emergency stop chain, which comes into effect between
the connections X3/1 and X3/6 must be under 1.3
Ω
(HVE02.2, HVE03.2, and HVR0x.2-xx) or 350 m
Ω
(HVE04.2)!
Terminal assignment
Input "ZKS"
Input "OFF"
Input "ON"
