Lenze ESVZAR0 RS-485 - Manual (Page 18)

16 CMVMB401C
Commissioning
7 Commissioning
7.1 Drive Monitoring
The network can always read drive parameters as long as the Modbus communications are enabled (i.e. P400 = 2)
and configured properly (see P410-412).
7.2 Drive Programming and Control
Network Control must be enabled for the network to program drive parameters or take control of an actual drive.
This is done by …
1. Setting P121…P123 equal to 09 (NET ENABLE) and asserting the corresponding TB-13x terminal
2. Setting P100 to 00, 01, 03 or 04. Network control cannot be enabled when P100 is set to 02 (REMOTE KEYPAD
ONLY) or 05 (TERMINAL STRIP/REMOTE KEYPAD).
Once network control is enabled, the drive must unlock controls and/or parameters in order to write to any of the
drive registers.
7.3 Unlocking & Locking Drive Controls & Parameters
Writing to Register #48 (Unlock Controls) with a value of 0 will unlock write access to the Drive Control register (#1)
only. Write commands to any other drive registers will not be allowed.
Writing to Register #48 (Unlock Controls) with a value equal to the drive’s programming password (P194) will unlock
the Drive Control register (#1) and all other writable drive registers. This enables the writing of any drive register
that is not designated as read-only.
NOTE
The factory default password is 225
Writing to Register #49 (Unlock Parameters) with a value equal to the drive’s programming password (P194) will
unlock all writable drive registers EXCEPT for the Drive Control register (#1). This enables the writing of any drive
register that is not designated as read-only, except for Register #1.
Once write access to the drive registers has been unlocked, it will remain unlocked until any of the following
conditions occur …
• Register #1 (Drive Control) is written with bit 1 (Lock Security) set
• A network watchdog time-out occurs (see Sections 7.4 and 7.5)
• The TB-13x terminal assigned to NETWORK ENABLE is de-asserted or is assigned to a function other than
NETWORK ENABLE.
Writing to Register #1 (Drive Control) with bit 1 (Lock Security) set will lock both Drive Controls and Parameters,
disabling the watchdog timer and preventing any further writing to drive registers (other than #48 and #49).
When the Lock Security (bit 1) is set, the drive drops out of NETWORK control and switches to the normal source of
control. If P100 = 3 (NETWORK ONLY) and the drive is running, the drive will also be stopped (according to P111).
Drive parameters and status registers can always be read, even when P100=2,5 and/or drive control and parameters
are locked.
Stop commands (STOP, QUICK STOP, INHIBIT) will always be accepted, even when network control is not enabled
or drive controls are locked.