Product description
Boundary conditions:
•
The maximum cable length for the motor OFF
circuit is 30 m.
•
Always design the motor OFF circuits
separately and with potentialfree contacts. Do
not mix up the motor OFF circuits under any
circumstances.
•
Fig. 7:
XDN1
Tab.
6
: XDN1 assignment
Pin Signal as-
signment
Descrip-tion/
function
Voltage/
current
1
VEE NH1
motor off 2
supply voltage
24 V/0.3 A
2
NH1
return (motor
contactor)
24 V/0.1A
3
VEE NH2
motor off 2
supply voltage
24 V/0.3 A
4
NH2
return (end
step)
24 V/0.1A
X D N 1
1 2 3 4
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CS351/CC-CS351
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Bosch Rexroth AG
motor off 1
motor off 2
The maximum torque at the bolted
connections of the terminals at
XDN1 must not exceed 0.3 Nm.
CAUTION
Risk of damage to persons and property!
The user is obliged to maintain the
systemspecific requirements for an
emergency OFF system.
When using external power supply
contactors in higher-level emergency OFF
circuits, observe the restarting time of 10
seconds for single switching and 30
seconds for repeated switching.
Check that the emergency OFF circuits
are functioning properly before
commissioning the tightening system.
Observe the local, systemspecific
regulations and requirements; proper use
of tools, lifting, and transport equipment;
as well as the pertinent standards,
provisions, and occupational safety
regulations.
•
Both motor OFF interfaces must be led back. If
only one is used, the other one must be
provided with a wire jumper.
If you are only using one motor OFF
connection option, we recommend
implementing the motor OFF function via
motor
OFF circuit NH1 (see Fig.
8
, page
63
).
CAUTION
Risk of damage to persons and property!
Dangerous shock currents due to
inadequate PE wire connections!
Protective conductor connections must
not be affected by mechanical, chemical,
or electrochemical influences. The
connection must be permanent.
NOTE
The voltage circuits at terminal XDN1 are
safely isolated from the power supply
circuits (safe isolation in accordance with
EN50178). The requirements for safe
isolation of electric circuits must be
observed when using the connection
options on this terminal.
