13
Note – motor size and speed settings of the device delivered with the VTS AHU are prepared by the manufacturer for
optimal operation and should not be changed.
DIP1
DIP2
Stepper motor = 2Nm
OFF
OFF
Stepper motor = 4Nm
ON
OFF
Stepper motor = 8Nm
OFF
ON
Table 6 Stepper motor size setting
DIP3
DIP4
Max RPM = 250
OFF
OFF
Max RPM = 200
ON
OFF
Max RPM = 170
OFF
ON
Max RPM = 150
ON
ON
Table 7 Max RPM settings
3.3.3 LED Indicator
The driver is fitted with a LED indicator - see Figure 19. The LED diode can be seen with both open and closed cover.
Figure 19 LED indicator
The statuses of the indicator are shown in Table 8 below. Note: Flashing means that the LED is off for 100 ms and on
for min. 100 ms (ms=milliseconds).
LED
State
OFF
No voltage
Green ON
Voltage is present
Flashing green
Valid Modbus communication
Red ON
Rotor stopped due to critical alarm
Flashing red
Operating with reduced power
Orange ON
Test function activated
Flashing orange
Purging function activated
Table 8 LED indicator statuses
