Lenze MCH Series Drives Modbus Communications - Manual (Page 17)

13 RG-MHMOD
Drive Control & Communication
5.2 Drive Control - Register #1
Table 8 illustrates the Data format of Register #1, Drive Control.
Table 8: Drive Control - Register #1
Bit Command
Data Low Byte
0 UPDATE BUFFERS
1 LOCK SECURITY
2 STOP DRIVE
3 START DRIVE
4 UNUSED
5 UNUSED
6 UNUSED
7 UNUSED
Data High Byte
8 CLEAR SERIAL SELECT FLAG
9 SET SERIAL SELECT FLAG
10 UNUSED
11 UNUSED
12 UNUSED
13 UNUSED
14 UNUSED
15 UNUSED
The appropriate bit is set to 1. For example, to stop the drive bit two is set (send 0004H). To start the drive
send 0008H. Setting update buffers bit, enables to start the drive using downloaded data. Locking security
disables the serial drive control, the communications watchdog timer and prevents any further writing to
control or parameter registers.
NOTE 1 - Drive Control
• During each write to Register #1 only one bit should be set in the drive control word.
• If more than 1 bit is set, the drive responds to stop bit only.
• If stop bit is not set, but more than 1 bit is set, drive responds with exception code 04.
NOTE 2 - Drive Family
The QC and DL Series drives return 64 (40H) The smd Series drives return 69 (45H)
The MC Series drives return 65 (41H) The TC Series drives return 70 (46H)
The SC Series drives return 66 (42H) The Tmd Series drives return 71 (47H)
The MCH Series drives return 68 (44H) The SMV Series drives return 72 (48H)