EM330D User Manual
A Special Purpose Inverter for Hoisting
10
output current is decreased by 1% for every additional 1 °C. 20%
～
90%RH (no condensation)
Vibration
＜
0.5g
Storage Temperature
-25
℃～
+65
℃
Installation Method
Wall mounting, or floor mounting
Degree of Protection
IP20
Cooling Method
Forced Air Cooling
1.2
Basic Functions of EM330D
1.2.1
Preset Speed Function
16 preset speeds specially designed for EM330D can satisfy the operation needs of
different speeds of building hoist, hoisting, and slewing and trolleying of tower crane
by switching multi-function numeric input terminals.
1.2.2
Brake Control Function
Multi-function output terminals of EM330D with brake control function can meet the
braking sequence requirement of construction lift, and hoisting and trolleying of
tower crane.
1.2.3
Dynamic Brake
Voltage on DC bus will increase due to energy feedback when hoist runs downward.
To make motor brakes quickly within given deceleration time, the inverter does not
perform overvoltage protection, dynamic braking can be started to consume the energy
via braking resistor.
1.2.4
Automatic Voltage Regulation (AVR)
When the input voltage fluctuates, the output voltage remains unchanged basically,
and output current will be decreased shortly when heavy load dropping
instantaneously.
1.2.5
Multi-function Numeric Input Terminals
7 multi-function numeric input terminals X1
～
X7 of EM330D can be programmed
based on real needs.
1.2.6
Multi-function Numeric Output Terminals
The functions of multi-function numeric output terminals Y1 and Y2, and Relay R1 of
EM330D can be programmed based on real needs.
1.2.7
Autotuning Motor Parameter
When autotuning motor parameters is active, the inverter will autotune and save the
motor parameters. Autotuning motor parameter is categorized as stationary autotuning
and rotational autotuning. When in rotational autotuning, separate motor and load to
make motor in idling status.
