Installation manual
37
Connection diagrams
Connection diagrams conforming to standards EN 954-1 category 3 and
IEC/EN 61508 capacity SIL2, stopping category 0 in accordance with standard
IEC/EN 60204-1
This connection diagram is suitable for use with machines with a short freewheel stop time (machines with low inertia or high resistive torque).
When the stop request is activated, the motor power supply is cut immediately and it stops in accordance with category 0 of standard
IEC/EN 60204-1.
This diagram must be used for hoisting applications if a mechanical brake is controlled by the ATV71.
A contact on the Preventa XPS AC module must be inserted in the brake control circuit to engage it safely when the Power Removal safety
function is activated.
(1)Line choke (if used)
(2)It is essential to ground the shielding on the cable connected to the Power Removal input.
- Standard EN 954-1 category 3 requires the use of a dual-contact stop button (S1).
- S1 is used to activate the Power Removal safety function.
- S2 is used to initialize the Preventa module when powering up or after an emergency stop. ESC enables the use of other initialization
conditions for the module.
- One Preventa module can be used for the Power Removal safety function on several ATV71 drives.
- A logic output on the Preventa module can be used to indicate reliably that the drive is operating in safe conditions.
Note:
For preventive maintenance, the Power Removal function must be activated at least once a year.
The drive power supply must be turned off and then on again before carrying out this preventive maintenance.
The drive logic output signals cannot be considered as safety-type signals.
Install interference suppressors on all inductive circuits near the drive or coupled to the same circuit (relays, contactors, solenoid valves, etc).
Choice of associated components:
Please refer to the catalog.
U / T1
V / T2
W / T3
R / L1
U1
W1
V1
M
3 a
S / L2
T / L3
+24
PWR
A1
R1A
R1C
R1B
LI1
LI6
S2
A1 23 33Y2 13
A2
PE
14 24 34
Y43
Y44
Y1
K2K1
48 V, 115 V, 230 V
K1
K2
T
ESC
XPS AC
S1
F1
LI2
L1(+)
N(-)
P0
PA / +
PB
PC / -
(1)
(2)
ATV71Hppppp
Braking resistor (if used)
Logic