Lenze smd Series Drives - Manual (Page 12)

RG-SDMOD 8
Drive Setup & Operation
4 smd Drive Setup & Operation
4.1 Control Parameter
In order to communicate using Modbus protocol, the smd Control Source Setpoint (parameter #C01) must
be set to one of the selections listed in Table 4.
Table 4: Control Source Setpoint C01 (Register 51)
Setting Source Description
Program
(Monitoring)
Control
(Start/Stop,
Direction)
Speed
(Source)
8 Modbus Terminal Analog Input Drive is controlled via terminal programming and is monitored via Modbus
interface or keypad. The default speed source is the analog input.
9 Modbus Terminal c40 Drive is controlled via terminal programming and is monitored via Modbus
interface or keypad. The default speed source is c40.
10 Modbus Modbus Analog Input Drive is controlled via serial interface and is monitored via Modbus
interface or keypad. The default speed source is the analog input.
11 Modbus Modbus c40 Drive is controlled via serial interface and is monitored via Modbus
interface or keypad. The default speed source is c40
4.2 Serial Address
The smd drive has a serial address parameter that must be programmed prior to attempting to operate the
serial interface. Set Parameter C09 (Network Address) to a valid address (1-247).
Tip
Most Modbus devices ship with a default address of 1. As such, it is recommended to
not
use address 1 in order to avoid duplicate address conflicts when replacing devices.
4.3 Serial Communications Parameter
Lenze-AC Tech drives have a Serial Communications Parameter that governs the operation of the serial
link. On
smd drives this is c25, Serial Baud Rate {Register #95 (PC400) or #103 (PC507)}. Parameter C01
Control Source Setpoint must first be set to a value of 8-11. Table 5a lists the selections for smd Parameter
c25, Serial Baud Rate. Table 5b lists the selections for the controller's reaction to serial timeout (n22).
Tables 5a & 5b: Serial Communications
Table 5a: Serial Baud Rate c25 Table 5b: Serial Timeout Action n22
Setting Description Setting Description
0 9600, 8, N, 2 0 Not active
1 9600, 8, N, 1 1 Inhibit
2 9600, 8, E, 1 2 Quick Stop
3 9600, 8, O, 1 3 Trip Fault FC3
The Serial Communications Parameter (c25) must be appropriately programmed prior to attempting to
communicate with the drive. The timeout period is programmed in Parameter n23, Serial Fault Time.