Wiring Examples - Vacon optbj Safety Manual

vacon • 32
6.2

Wiring examples

The examples in this chapter show the basic principles for wiring OPTBJ board. Local standards
and regulations should be always followed in the final design.
Example 1: OPTBJ board without reset for Safe Torque Off (STO)
MAIN CIRCUIT
L1 L2 L3 PE
PE
1 3 5
F1
2 4 6
L1 L2 L3
U V W
PE
PE
PE
PE
W1
U1 V1 W1
M
3 ~
PE
1 2
M1
The figure above shows a connection example of OPTBJ board for Safe Torque Off safety function
without reset. The switch S1 is connected with 4 wires to the OPTBJ board as shown above.
When the switch S1 is activated (contacts open), the drive goes to STO state and motor (if running)
will stop by coasting. If STO fault action is parameterized as "Alarm", the drive indicates: "30 Safe
torque off". Regardless of the parameterization, activation of STO function causes a coasting stop
for motor.
To allow the returning of the drive to ready state without a reset after S1 is deactivated (contacts
closed), STO Fault action must be parameterized as "Alarm". See application manual for related pa-
rameters.
To start the motor operation again, the following sequence is performed.
• Release the switch S1 (contacts closed). The hardware is now enabled and the drive returns to ready
state.
• Giving a valid start command starts running the motor.
NOTE! According to EN 60204-1 (Safety of machinery - Electrical equipment of machines), the re-
setting of the emergency stop request (e.g. releasing of emergency stop button) must not restart
the drive.
NOTE! The VACON
command. With the edge-sensitive start command, disactivating the STO does not cause immediate
start.
6
SPEED REFERENCE
CCW
R1
S
CW
W12 1sh 1r 2sh 2p 2s
1 2 3 4 5 6
1 2 3 4 5 6
+10Vref AI1+ AI1 AI2+ AI2 24Vout
2
STO1+ STO1 STO2+ STO2 RO1 C
7
Installed
X10
1 2 3 4
W10 1r 1b 2r 2b
Safe torque off
11 21
S1
12 22
®
100 default application software uses edge-sensitive start as a default start
START STOP
S6 S7
13 11
14 12
7 8 9 10 11 12 13
7 8 9 10 11 12 13
GND DI1 DI2 DI3 CM 24Vout GND
ON OFF RS485
U I AO1
U I AI2
U I AI1
ON OFF DGND
RO1 NO TI1+ TI1
OFF
X23
OPTBJ
25 26 28 29 SLOT E
0V
Short circuit and earth
fault protected supply
+24V
Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/
Commissioning
14 15 16 17 18 19 20
14 15 16 17 18 19 30 A
DI4 DI5 DI6 CM AO1+ AO/GND +24Vin RS485
21 22
B
RS485
Basic I/O
PE
3044B_UK.eps