Vfd Setup (Dual Speed Only) - Harrington ER2 SERIES Owner's Manual

3.6

VFD Setup (Dual Speed Only)

DANGER
3.6.1
maintenance on the dual speed ( VFD control) trolley or hoist within 5 minutes of de-energizing
(disconnecting) the trolley or hoist. This time allows the internal VFD capacitor to safely discharge.
WARNING
3.6.2
operation.
3.6.3 All dual speed hoists are equiped with a VFD. The VFD is used to control the high and low lifting
speeds. The speeds come preset from the factory
Refer to Section 3.6.10 for hoist specific speed ranges and instructions.
3.6.4 The VFD is controled by a Keypad/Display Interface. Refer to
functions and descriptions.
3.6.5 When power is supplied to the hoist the VFD LED operator display will illuminate as shown
To avoid a shock hazard, DO NOT perform ANY mechanical or electrical
Do Not remove power to the dual speed (VFD control) hoist or trolley during
Figure 3-8 VFD Keypad/Display Interface
Table 3-2 LED Operator Display
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(Table 3-6). Speed (frequency) can be customized.
Figure 3-8 for Keypad/Display Interface
Table 3-2.