Retrofitting Electronic Limit Contacts; Retrofitting Rs-485 Module - Samson 3374 Series Mounting And Operating Instructions

Installation
5.5 Retrofitting electronic limit
contacts
DANGER
!
Risk of fatal injury due to electric shock.
Î Before installing electrical accessories,
switch off the supply voltage and discon-
nect the signal line.
To install the electronic limit contacts, the fol-
lowing retrofit kit is required:
− Electronic limit contacts:
Order no. 1402-0591 (see Annex B)
Note
To undo the screws on the housing cover, use
a POZIDRIV PZ2 screwdriver to get enough
®
hold on the screw heads.
1. Undo screws on housing cover and take
the cover off the actuator.
NOTICE
!
Risk of damage to the connecting cable due
to incorrect handling.
Actuator version with three-key operation:
make sure that the connecting cable between
the housing cover and actuator board is not
damaged when removing the housing cover.
Î Fasten the housing cover to the housing
before performing work on the actuator
(see Fig. 5-18).
2. Connect the connector on the connecting
cable to the plug-in location intended for
it on the board.
5-8
3. Position the terminal board (17, see
Fig. 5-5) at the base of the support at a
45° angle (approx.) with the relay point-
ing towards the edge of the intermediate
board. Swivel the upper end of the termi-
nal board until the board is properly en-
gaged.
4. Adjust limit contacts as described in the
'Start-up and configuration' section.
5. Replace cover. Briefly turn the fastening
screws counterclockwise with a screw-
driver to center them. Then fasten down
the cover by tightening the screws.

5.6 Retrofitting RS-485 module

To install the RS-485 module for Modbus
RTU communication, the following retrofit kit
is required:
− RS-485 module:
Order no. 1402-1522 (see Annex B)
DANGER
!
Risk of fatal injury due to electric shock.
Î Before installing electrical accessories,
switch off the supply voltage and discon-
nect the signal line.
1. Undo screws on housing cover and take
the cover off the actuator.
2. Switch off the supply voltage.
3. Insert the four spacers into the holes in-
tended for them in the actuator board.
4. Place the RS-485 module with the con-
nector side facing downward onto the
spacers.
EB 8331-4 EN