Operating Instructions for ERU Knife Gate Valve K1 with electric actuator
Electrical connection has to be effected according to Operating Instructions as well
as wiring and terminal diagrams of the electric actuator's manufacturer (travel,
torque and thermal switches, heating, motor). Before installation, the insulating
resistance of the motor must be measured. If it is lower than 500 K-ohms, this
shows that the winding is moist. The motor has to be removed in order to be dried
up and it must be heated by means of a hot-air fan or in a heating chamber: max.
admissible temperature 100°C.
4.2
Commissioning of the Electric Actuator
4.2.1. Move the ERU Knife Gate Valve K1 manually to central position.
4.2.2. Check the gate movement and thus the direction of rotation of the actuator by
short electrical starting.
+
Valve is closing = CLOCKWISE direction of actuator rotation
Valve is opening = ANTI-CLOCKWISE direction of actuator rotation
4.2.3 In case of wrong direction of rotation, change poles of motor connection.
4.2.4 Check direction of rotation by short electrical starting.
4.2.5 Check correct switching sequence of the torque switches in "Open-Close"
direction by manual operation.
4.2.6. Change poles if necessary.
4.2.7. Move the valve over the whole travel only if the direction of rotation for closing
the valve is CLOCKWISE.
+
In case of wrong direction of rotation, travel and torque switches are
ineffective!
BA46E033
July 2005
Rev. 4
ERHARD-Armaturen
x
D-89502 Heidenheim
x
Postfach 1280
(07321) 320-0
(07321) 320 491 e-mail:info
@
erhard.de
Internet: http://www.erhard.de
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