Bell & Gossett 193 TECHNOVAR VARIABLE SPEED PUMP CONTROLLER AND INTEGRATED AJUSTABLE FREQUENCY DRIVE User Manual
Page 28
Operating Instruction
28
6.4.2 Dip-Switch on the controller board
SW4: DIP-Switch to select the switching frequency
!!Attention!!
Before switching, disconnect the power supply, otherwise the
Technovar could be destroyed.
SW4
Switching frequency
1
2
OFF OFF
8kHz (standard)
ON OFF
5kHz
OFF ON
4kHz
ON ON
2.5kHz
6.4.3 Main parts from the control card
RS
-485 t
ermin
al
s
Control terminal
blocks
24V output
(max. 800mA)
for external fan
40 pin connection
(to power board)
Dip-switch
Main supply
3x400 V
Motor connection
Pin connection
(to Display)
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