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2.3 Control of step motor

Rotational speed/
control voltage

The diagram below shows the relationship between step motor rotational speed
and motor signal voltage.

If the rotor control step
motor receives a:

Then

0-10V signal less than 0.6 V

the motor stops

0-10V signal greater than 1.1 V

the motor starts

0-10V signal greater than 9.5 V

the motor runs at max rpm

The table below shows the maximum permitted step motor rotational speed – de-
pendent on the size of the VEX. If the rotational speed exceeds the given value, the
motor will become overloaded and shut down.

VEX

model

Max. speed

step motor

Max. no. of

revolutions in

step motor

per min.

Optimum no. of

rotor

revolutions

per min.*

Voltage

0 - 10V

VEX260

150

106.5

10

9.21

VEX270

150

132.5

10

9.42

VEX280

170

170

10

10

*When the rotor operates with this rpm, the highest temperature efficiency is ach-
ieved.

3005888-2018-05-31

Installation of the VEX

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Summary of Contents for VEX270HX

Page 1: ...80HX with third party control system Electrical installation Chapter 1 2 Original instructions 3005888 2018 05 31 VEX260 280HX EXHAUSTO A S Odensevej 76 DK 5550 Langeskov Tel 45 65 66 12 34 Fax 45 65...

Page 2: ...on diagram for VEX with motor control MC 4 1 1 1 Alarm relay function 8 2 Installation of the VEX 2 1 Scope of installation 9 2 1 1 NB 9 2 2 Selection of rotor direction of rotation 10 2 3 Control of...

Page 3: ...tly installed in the unit The isolation switch must be lockable or positioned in plain sight in the immediate vicinity of the unit disconnect all poles from the supply voltage be constructed in accord...

Page 4: ...for VEX with motor control MC VEX260 3 x 400 V The diagram below illustrates connection of the supply voltage to the motor con trol and rotor To adjust the rotor speed see section Control of step moto...

Page 5: ...x 400 V The diagram below illustrates connection of the supply voltage to the motor con trol and rotor To adjust the rotor speed see section Control of step motor 3005888 2018 05 31 Voltage supply dia...

Page 6: ...gnation Explanation MC1 Supply Power supply for motor control MC1 located on left of unit MC2 Supply Power supply for motor control MC2 located on right of unit DRHX 230V Power supply for rotor contro...

Page 7: ...MC2 phase cur rent A DRHX A VEX260 3 x 400V N PE 15 5 21 15 3 15 3 0 2 VEX270 3 x 400V N PE 14 3 7 05 7 05 0 2 VEX280 3 x 400V N PE 28 6 14 1 14 1 0 4 Note VEX260 Power consumption is taken from two...

Page 8: ...RHX2M are connec ted to the terminal block in the connection box MC terminal 9 10 and terminal 15 16 Function The alarm relay position in the case of power failure or similar The alarm relay position...

Page 9: ...the connection box Supply voltage for motor controls 1 and 2 Supply voltage for rotor control Rotor control signals Motor control signal MC and alarm relay For other technical data see the Technical...

Page 10: ...to the left is indicated by L for Left Selecting Left Right To change the VEX from e g Left to Right 2 of the 3 motor cables to the rotor motor must be switched Step Action 1 Open the doors the rotor...

Page 11: ...s at max rpm The table below shows the maximum permitted step motor rotational speed de pendent on the size of the VEX If the rotational speed exceeds the given value the motor will become overloaded...

Page 12: ...setting VEX model Configuration VEX260 on off VEX270 VEX280 on off The black marking on the above sketch indicates the position of the button on the dip switch 3005888 2018 05 31 Installation of the...

Page 13: ...3005888 2018 05 31 13 16...

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