R&M Materials Handling ELECTRIC CHAIN HOISTS LoadMate Chain Hoist TMU Motorized Trolley - Manual (Page 27)

LM TMU I&M MANUAL/EN/06.15.2009
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Copyright © (2009) R&M Materials Handling, Inc. All rights reserved.
Two-step Infinitely Variable Speed Control (EP-2) (S4-1 = ON)
The TMU VFD features Two-step Infinitely Variable Speed Control and Decelerate to Stop using dynamic
braking.
Figure 10. TMU VFD Two-Step Infinitely Variable Speed Control and Decelerate
fwd
rev
time
Pushbutton position:
Rest = decelerate
1.step = maintain speed
2.step = accelerate
speed
pushbutton position
y S1 input is RUN Forward. Frequency output increases to frequency set by DIP switch S2. Operation
continues at this frequency (minimum speed).
y S2 input is RUN Reverse. Frequency output increases to frequency set by DIP switch S2. Operation
continues at this frequency (minimum speed).
y AP input is acceleration. Frequency (speed) output increases. The longer this contact is closed, the
higher the speed output becomes. Limited only by the setting if DIP switch S2.
y During running S1 input and S2 input are Hold speed. Frequency output remains constant.
y Upon removal of S1 input and S2 input (RUN Forward/Reverse), the stopping method is Decelerate to
STOP. Output frequency decreases and the inverter decelerates to zero. Then the brake sets.
4.2.3 Motor Parameters
The motor parameters are selected by setting switches S4-2, S4-3 and S4-4. The motor parameters must
correspond to the motor type being used. The motor parameters are selected as follows:
Table 11. Motor Parameter Switch Settings
Switch S4
-2 -3 -4 Motor type Nominal
frequency Nominal Motor power
0 0 0 MF06MK200 100Hz 0.37kW [0.5 hp]
1 0 1 MF06MK200 gearless 35Hz 0.15kW [0.2 hp]
)
Note: Incorrect motor parameter setting may damage the controls or the motor.