26
3.8
Hoist Variable Frequency Drive (VFD) Setup
The hoist Lifting/Lowering VFD is located in the Trolley Hoist Control Box as shown in
Figure 3-16
.
Figure 3-16
VFD Locations
3.8.1
To avoid a shock hazard,
DO NOT
perform
ANY
mechanical or electrical
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.
3.8.2
Do NOT
remove power to the VFD control hoist or trolley during operation.
3.8.3
Ensure proper Electro-Static Discharge (ESD) component safe handling
procedures before working on the VFD.
3.8.4
All hoists are equipped with a VFD. The VFD is used to control the high and low lifting speeds.
The speeds come preset from the factory (
Table 3-5
)
.
Speed (frequency) can be customized.
Refer to
Section 3.8.13
for hoist specific speed ranges and instructions.
3.8.5
Parameter change and maintenance must be performed by a competent
person with experience and expertise of handling the wire rope hoist and the VFD control.
3.8.6
The product is energized during a parameter change or maintenance of the
VFD.
Do NOT
remove the cover of the VFD.
Do NOT
touch the circuit board or electrical
components around the VFD.
3.8.7
The VFD is controled by a Keypad/Display Interface. Refer to
Figure 3-17
for Keypad/Display
Interface functions and descriptions.
Содержание Harrington RY Series
Страница 15: ...15 2 3 Part Names Figure 2 1 RY Part Names...
Страница 42: ...42 Figure 3 20 Hoist Upper and Lower Limit Switch ULLS...
Страница 57: ...57 Table 5 8 Various shapes that require the wire rope to be replaced...
Страница 67: ...67 Table 6 9 Motor Brake Gap Capacity Code Brake Gap G inch mm RY030 RY050 0 032 0 8...
Страница 104: ...104 9 3 Trolley Frame Parts Figure 9 3 Trolley Frame Parts...
Страница 112: ...112 9 10 Hoist Motor Parts Figure 9 10 Hoist Motor Parts...
Страница 114: ...114 9 11 Trolley Motor Parts Figure 9 11 Trolley Motor Parts...
Страница 116: ...116 9 12 Control Panel Box Parts Figure 9 12 Control Panel Box Parts...
Страница 119: ...119 This Page Intentionally Left Blank...