CV7300 Instruction Manual - TECO-Westinghouse Motor Company

Chapter 4 Software Index
External switch terminal is OFF: in communication, the master (PC or PLC) can control the
inverter operation and frequency signal and allowably modify the parameters, and the operation
signals from Keypad and TM2 are idle. Furthermore, the keypad can only display the voltage,
current and frequency, the parameters are readable and not writable, and Emergency Stop is
valid.
External switch terminal is ON: in communication, the inverter is controlled by the keypad
regardless of the setting of 1-00/1-06 and master. Under such circumstance, the master still can
read and write the inverter parameters.
11. 5-00~06=13: Disable acceleration and deceleration
The acceleration and deceleration action is unavailable till the forbid acceleration and
deceleration signals are released. The action is illustrated in the graph below:
Operation
Signal
Disable
ACC/DEC
Output
Frequency
12. 5-00~06=14,15: UP / DOWN Function (Actual ACC/DEC time is base on the setting):
(1)Please set 1-06 = 3 if you want to use the UP/DOWN Function, and the other frequency signals
are useless.
(2)Set 5-08 = 0 and 5-09 = 0, the inverter accelerates to the preset value of 6-00 when the
operation terminal is ON. Then, it maintains the certain speed. As the inverter receives the
UP/DOWN command, it will accelerate / decelerate till the command is released. The
inverter runs at the certain speed. The inverter will ramp stop or Free-Fun stop which is
determined by the 1-05 as long as the inverter receives the STOP command. And the
frequency of Stopping will be stored in 6-00. The UP/DOWN KEY is invalid as the inverter
stops. It is necessary to use the Keypad to modify the preset parameter.
(3)Set 5-08 = 1, the inverter will operate from 0Hz when the operation terminal is ON. The
action of UP/DOWN is as above description. The inverter will ramp stop or free-run stop
which determined by1-05 setting when as it receiving the Stop Command and back to 0Hz.
The next operation will start at 0 Hz.
(4) That UP/Down Signal Simultaneously act are invalid
(5) 5-09≠ 0, the inverter will accelerate to the setting of 6-00 and maintain at the speed. When
the UP/Down terminal is On, setting frequency is present value 6-00±5-09, and the inverter
will accelerate/ decelerate to frequency 6-00. The upper frequency limit and lower frequency
limit also restrict the operation. If the signal of UP/ DOWN is maintained over 2 seconds, the
inverter will begin to accelerate/ decelerate. If 5-09=0, the operation is the same, till the UP/
DOWN signal stops. Please refer to the time diagram of 5-09.
4-36
※Note: Operation Switch is OFF,
the command of disable