Initial Start-Up; Checking The Direction Of Rotation; Checking The Y/D Time Setting - Nederman E-PAK 150 DX Manual De Instrucciones

EN E-PAK 150 DX/300 DX/500 DX
9.2

Initial start-up

WARNING!
Work with electric equipment is to be carried out by a qualified electrician.
The initial start-up is to be performed with the acoustic enclosure removed to
verify the direction of rotation. Refit the acoustic enclosure when all checks
have been performed.
NOTE!
9.2.1

Checking the direction of rotation

For the position of switches, see Figure 11.
To check the direction of rotation:
1. Connect power by turning on the maintenance switch.
2. Turn on the emergency switch below the control panel.
3. Turn the standby and reset switch to position Reset.
4. Turn the standby and reset switch to position 1 (standby).
NOTE!
it will only start if the manual start button is pressed or a pilot signal is
triggered, for example, by the opening of a valve at a workstation.
NOTE!
signal, it should start immediately if terminals 3 and 4 in the start and
control unit are linked by a jumper, see Section 6.1 Start and control unit.
5. Compare the direction of rotation with the arrow on the motor. If these
correspond, allow the starting procedure to continue.
6. If the direction of rotation is incorrect, stop the unit by switching the
standby and reset switch to position 0. Disconnect power with the
maintenance switch. Open the start and control unit, see Figure 10, and
switch two of the incoming phase conductors. Refit the cover of the start
and control unit.
9.2.2

Checking the Y/D time setting

NOTE!
be adjusted.
However, if adjustment is needed, the set time in Y mode should be just
sufficient for the motor to reach full speed before switching to D mode.
This is particularly important when the unit is equipped with a pilot signal. Too
long a time in Y mode means unnecessary heating of the motor and a delay
before the unit delivers full vacuum.
NOTE!
Adjust the Y/D timer K4T in order to increase or decrease the time-setting, see
Figure 10, item 3. To access the Y/D timer K4T, open the cover of the start and
control unit. Refit the cover of the start and control unit after adjustment.
38
Risk of electric shock.
Ensure that no valves at any workstations are open.
If E-PAK 150 DX/300 DX/500 DX is connected to a PS cable,
If E-PAK 150 DX/300 DX/500 DX is NOT connected to a pilot
The Y/D time setting is factory preset and does not normally need to
Too short a time in Y mode may damage the starter.