R&M Materials Handling ELECTRIC CHAIN HOISTS LoadMate Chain Hoist TMU Motorized Trolley - Manual (Page 21)

LM TMU I&M MANUAL/EN/06.15.2009
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Copyright © (2009) R&M Materials Handling, Inc. All rights reserved.
4 TMU VARIABLE FREQUENCY DRIVE
4.1 Description of the Inverter
m
WARNING: Do not touch any circuit components while the main AC power is on. High voltages
are supplied to the inverter (including the programming switches). Wait for at least three
minutes after the supply voltage has been switched off before performing any service on the
unit. Failure to adhere to this warning can result in injury.
Figure 9. Inverter
1. Terminal X1
2. Red LED (fault)
3. Green LED (ok)
4. Programming switches
5. Capacitor
c_fcmo1b
m
CAUTION: Inverter cooling is optimal when the air flows through the device from the bottom to
the top. If the inverter is mounted sideways, the output current must be de-rated by 40%.