Delta VFD-L Series User Manual

5
VFD-L Series
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
5-41
9 - 03
M
odbus Communication Watchdog Timer Factory Setting: d 0
Settings d0 Disable Unit: 1 sec
d1 to d20 1 to 20 sec
This parameter can be set during operation.

If the Watchdog timer function is enabled, the timer will start counting once the first valid
Modbus communication signal is received after power-up or reset. The timer will reset
to 0 after each valid Modbus communication message is received. If the watchdog timer
reaches the value set in Pr. 9-03, the drive will stop its output and display the message
"CE10" on the digital keypad. This fault can reset by an external terminal, keypad or a
Modbus communication reset command.
9 – 04
C
ommunication Protocol
F
actory Setting: d 0
Settings d 0 Modbus ASCII mode, protocol <7,N,2>
d 1 Modbus ASCII mode, protocol <7,E,1>
d 2 Modbus ASCII mode, protocol <7,O,1>
d 3 Modbus ASCII mode, protocol <8,N,2>
d 4 Modbus ASCII mode, protocol <8,E,1>
d 5 Modbus ASCII mode, protocol <8,O,1>
d 6 Modbus RTU mode, protocol <8,N,2>
d 7 Modbus RTU mode, protocol <8,E,1>
d 8 Modbus RTU mode, protocol <8,O,1>
This parameter can be set during operation.

1.Computer Control
6
1
1: +EV
2: GND
3: SG-
4: SG+
 There is a built-in RS-485 serial interface, marked (RJ-11 Jack) on the control
terminal block, for VFD Series. The pins are defined below:
Each VFD-L AC drive has a pre-assigned communication address specified by Pr.
(9-00). The computer then controls each AC drive according to its communication
address.

Delta VFD-L Series Specifications

General

Control Method	V/F Control
Output Voltage	0 to Input Voltage
Cooling Method	Fan Cooling
Enclosure Rating	IP20
Overload Capacity	150% for 60 seconds
Protection	Over-voltage, Over-current, Overheat, Under-voltage, Short circuit
Braking Unit	Built-in
Operating Temperature	-10°C to 50°C (14°F to 122°F)
Digital Inputs	5 programmable digital inputs
Analog Input	0-10V, 4-20mA
Communication Interface	RS-485 (Modbus)
Storage Temperature	-20°C to 60°C (-4°F to 140°F)
Humidity	90% RH, non-condensing
Altitude	Up to 1000m without derating
Input Voltage	200-240V, 380-480V