Lenze MC Series Drives - Manual (Page 22)

RG-MCMOD 18
Drive Control & Communication
5.6 Keypad Speed - Register #40
This register enables the user to set the keypad speed to desired value.
• Range is 0 - 65000 in hundredths of a Hz
• Most significant byte is first, followed by Least significant
• CONTROL OF THE DRIVE SPEED VIA THE SERIAL LINK IS NORMALLY DONE USING THIS PARAMETER.
This register can be written only after enabling serial drive control.
5.7 Total Run Time - Registers #36 & 37 (MC3000 only)
Register #36 - Total Run TIme in Hours Example: A value of 20 in decimal equals 20 Hours
Register #37 - Total Run TIme in Minutes Example: A value of 42 in decimal equals 42 Minutes
5.8 PID Commands - Registers #38, 39, 41 & 43
Registers #38 (PID Setpoint Command), #39 (PID Feedback Value), #41 (Local PID Setpoint Command) and
#43 (Serial PID Command) are all in drive internal units with a range of 0 to 32736. The real world parameter
being controlled is mapped into this internal range based on the feedback device for the parameter being
measured and controlled.
For Example, if the device measures temperature in °C with a range of 10°C to +110°C, then 10°C maps
to 0 in internal units and 110 maps to 32736. A setpoint of 30 °C for the Local PID Setpoint (Register #41)
would be written with a value of 6547 (1993 hex). (32736 * {30 – 10} / {110 – 10}).
5.10 Unlock Commands - Register #48
Register #48 (Unlock Commands) unlocks commands by using 0000 for the password. If the correct
Programming mode password is entered then the appropriate programming parameters can also be
accessed (refer to the full parameter protocol specification if access to programming parameters is
required). Enabling commands also activates the drive Watchdog timer if programming parameter #15
(Serial) is set to W/TIMER (it uses a fixed 10 seconds timeout). If the drive sees no activity within the update
time period it will stop the drive. Whenever a communications session (where #48 or #49was activated) is
to be ended, register #1 bit 1 (Lock Security) must be asserted. This disables the watchdog and prevents
further accesses to registers. Note: Terminal TB1 must be closed in order to unlock serial control.
5.11 Unlock Parameters - Register #49
Register #49 (Unlock Parameters) unlocks programming parameters for writing when the proper
Programming Password is entered. Whenever a parameter writing session (where #49 was activated) is
to be ended, register #1 bit 1 (Lock Security) must be asserted. This disables the watchdog and prevents
further write access to Parameter Registers.