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VFD
- The Variable Frequency Drive converts the AC supply voltage to DC and then converts the
DC to a suitable three-phase frequency source for M1. Incoming power connects to terminals L1
& L2. M1 connects to terminals T1, T2, & T3 through TS1. The HMC sends the command to the
ModBus to set the frequency for the combination of ovens selected. The VFD can receive a signal
from the fire suppression system to command the drive to run at 60 Hz. A complete manual can be
found at
5
2
3
4
1
1) Incoming Power
1) Neutral
2) Line Voltage
3) Not Used
4) Ground
2) Not Used-VFD Relay
3) Digital Inputs
1) Stop Function
2) Start / Run
3) Not Used
4) COM To TS2
5) Not Used
6) Not Used
4) Exhaust Fan Power
1) Power To Motor
2) Power To Motor
3) Power To Motor
4) Not Used
5) Not Used
5) ModBus Comm
HOOD THEORY OF OPERATION (STD W/FS)