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M880 ALL EN 2.7.2.docx
7.11. Analog command board (PCB261)
This board can control 8 proportional outputs (PWM: voltage and current) by inserting the appropriate
IMET command modules.
Command modules
M550C2: 0-20mA/4-20mA current-operated control
M550C1: PWM current-operated control
M550V: voltage-operated control
The frequency value of the PWM oscillator can be set by adjusting the R11 trimmer and shorting
solder-jumpers T1, T2 or T3. (J22 test point is used for frequency measurement).