14
Option description and instructions
3ADW0005Q964 E-Stop cat.1 without opening mains contactor en b
Wiring
At least one emergency stop button and one reset button need to be installed at a suitable place near
the machine. There must be double contacts in the emergency stop button and double wiring (two-
channel connection) between the button and the emergency stop safety relay [A61]. The safety relay
detects cross faults and faults across one contact from the emergency stop button.
If needed, install additional emergency stop buttons on site and wire them to the appropriate terminal
block inside the drive cabinet. See the circuit diagrams delivered with the drive. Follow the rules below:
1.
Use only double-contact buttons approved for the emergency stop circuits.
2.
Connect the emergency stop buttons with two conductors (two-channel connection).
Note:
Keep the channels separate. If you use only one channel, or if the first and second channels are
connected together (for example, in a chain), the cross fault detection of the emergency stop safety
relay trips and activates the emergency stop command of the drive as it detects a redundancy fault.
3.
Use shielded, twisted pair cable. We recommend a double-shielded cable and goldplated contacts in
the emergency stop button.
4.
Ensure that the sum resistance for one channel (loop resistance) does not exceed 1 kOhm.
5.
Follow the general control cable installation instructions given in the drive hardware manual.
You can also install additional reset buttons and indication lamps for the emergency stop circuit on
site. We recommend gold-plated contacts in the reset button. Wire the buttons to the appropriate
terminal block inside the drive cabinet. See the circuit diagrams delivered with the drive. Follow the
rules below:
1.
Sum resistance of the external reset circuit may not exceed 1 kOhm.
2.
Follow the general control cable installation instructions given in the drive hardware manual.
