Watson-Marlow Varmeca - Manual (Page 33)

31
INSTALLATION AND MAINTENANCE
VARMECA - 20
Variable speed motor or geared motor
OPERATING EXTENSIONS
LEROY-SOMER Réf. 3481 - 4.33/c - 09.01
7 - OPERATING EXTENSIONS
7.1 - Speed control knob option (B)
The speed is set using a knob with graduations from 15 to
100%. With 2 indicator lamps. Connected on the P2
connector.
7.2 - Control knob with integrated run/
stop control option (BMA)
In addition to speed control, a run button and a stop button
make it possible to control the VARMECA - 20 locally, once it
has been switched on, as required. For a run command to be
taken into account, the button must be held down for one
second.
• Connected on the P2 connector.
• With 2 indicator lamps.
7.3 - Control knob with forward/reverse/
stop control option (BMAVAR)
In addition to speed control, a forward button, a reverse
button and a stop button make it possible to control the
VARMECA - 20 locally, once it has been switched on, as
required. For a run command to be taken into account, the
button must be held down for one second.
• Connected on the P2 connector.
• With 2 indicator lamps.
7.4 - Internal speed control option
(CVI VMA20)
The speeds are set on potentiometers which are accessible
once the cover has been removed.
- a Max.Spd potentiometer: calibration of the maximum speed
- a Min.Spd potentiometer: calibration of the minimum speed
- an Int.Spd potentiometer: speed control which replaces
control via the control knob.
There are also 2 indicator lamps.
7.5 - Braking resistor option
(RF100 - RF200)
For operation in 4 quadrants and energy dissipation, resistors
are fixed directly onto the VARMECA casing.
External resistors with greater thermal power can be used,
provided that the minimum ohmic value is respected.
7.6 - Fieldbus options
The interface card is fixed inside the casing cover. Protocols:
PROFIBUS DP, INTERBUS S, DEVICENET, CAN OPEN.
RF 100 RF 200
P
peak
P
thermal
Value
P
peak
P
thermal
Value
kW W Ω kW W Ω
VMA A or B 21T 2,8
100 200
2,8
200
200
(2x100
in
serie)
VMA A or B 21M/TL 0,65 0,65
VMA A or B 22T 2,8 2,8
VMA A or B 22M/TL 0,65 0,65
en