Agromatic ESR-NK Series, Installation And Operating Manual, Page: 60 / 98

6.2 Electrical connection 6 Electronic position controller ESR-NK (option)
54 Actuators NK and VK, Position Controller ESR-NK
6.2 Electrical connection
Depending on the applied setpoint and the position of the actuator, the
position controller starts to move the actuator immediately after the operat-
ing voltage has been switched on. This may cause possibly dangerous
movements of the actuated valve.
Therefore, always set the position controller to Manu mode = manual
mode (see page 58 “Sliding switch” ) before switching on the operating
voltage of the actuator!
DANGER
Warning of dangerous electrical voltage!
Working on live electrical devices poses a considerable risk of deadly or
serious injuries!
If an actuator is open or operational, there is a risk of coming into contact
with live parts (e.g. with a tool or another thin object).
–
The electrical connection may only be established by a qualified electri-
cian.
–
Adhere to the regulations of the VDE (German Association for Electri-
cal, Electronic and Information Technologies) and to the regulations is-
sued by the local utility company.
–
Make sure that no bare wires protrude from the terminals to eliminate
the risk of electric shock or short circuits.
Important information!
Limit switches and auxiliary switches are not suitable as signal encoders
for safety-related controls!
Important information!
For installation within a building, a switch must be provided as a separator
according to DIN EN 61010-1 in order to disconnect the actuator before
carrying out maintenance or troubleshooting work.
–
This switch must be easily accessible for the user.
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The switch must be clearly identified as a separator.
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The separator must not interrupt the ground conductor!
–
We strongly recommend installing a lockable switch.