ElmoMC SimplIQ Command Reference - Manual (Page 164)

VH[N], VL[N] - High and Low Reference Limit
Purpose:
Define the drive’s minimum and maximum speed and position reference limits.
Software commands beyond these values are not accepted, and are truncated to VL[N] and
VH[N].
Speed limits are restricted by the TS value according to the following:
For analog encoders, resolvers, tachometers, potentiometers and digital halls:
SpeedLimit = minimum between 80,000,000 and 8e9/TS.
For quadrature encoder:
SpeedLimit = minimum between 20,000,000 and 8e9/TS.
ƒ The reference to the speed controller is limited to the [VL[2]…VH[2]] range.
ƒ The reference to the position controller is limited to the [VL[3]…VH[3]] range.
Attributes: Type: Command/Parameter, Integer
Source: Program, RS-232, CANopen
Restrictions: MO=0
VH[N] > VL[N] for all entries
Default values: VH[2]=15,000,000, VH[3]= 999,999,990
VL[2]=-15,000,000, VL[3]=-999,999,990
(RS), Non-volatile
Range: 0 < VH[2] < +Speed Limit
- Speed Limit < VL[2] < 0
-2 31 < VH[3] < 2 31 – 1
-2 31 < VL[3] < 2 31 – 1
Unit modes: VH[2], VL[2]: UM=2, 3, 4, 5
VH[3], VL[3]: UM=3, 4, 5
Activation: Immediate
In position modes (UM=4, 5) motor movement is enabled in both directions within
the defined position reference range. If feedback has been extended beyond those
limits, the motor can be enabled by the user (MO=1) but the motion can only be in
the direction towards the reference limit range.
VH[2] is used to determine the maximum and minimum allowed speed for PWM
reference generator in 50% and 100% PWM modes.
See also:
XM[N], LL[N], HL[N], RM
Reference chapter in the SimplIQ Software Manual:
Chapter 14, ”Limits, Protections, Faults and Diagnosis”
SimplIQ Command Reference Manual Alphabetical Listing
MAN-SIMCR (Ver. 4.5)
3-151