VMX
2
Series Digital Solid State Soft Starter User Manual
45 |
P a g e
5.6.6 Restart Delay
The
VMX2 Series
can be programmed to delay restarting upon
restoration of line power after an outage. This allows multiple units to be
programmed to restart at staggered times in an effort to avoid causing
additional problems with the power supply system. Another term for this
is “
Sequential Start Delay
”.
F028 = Restart Delay Time
Factory Setting = 0 (Disabled)
Range = 0 = Disabled (no delay), or 1 - 999 seconds
Sets a delay time before the starter can be restarted after a
complete loss of power. Use this if multiple motors are
connected to a supply system that may have trouble providing
adequate power to restart them all at the same time. By using
different Restart Delay Times on each unit, a sequential restart
can be achieved.
▪
Note:
This is similar to the Coast Down Lockout Timer in
F048
, however it
only activates on Power Loss.
5.6.7 Voltage Protection Features
F029 - F037 set extended protection features that may be used in the
VMX2 Series
starter.
▪
Note:
All of these features are disabled upon shipping from the
factory and must be enabled via user programming as follows:
F029 = Voltage Input (nominal line voltage)
Factory Setting = 480 (V)
Range = 200 - 600 (V)
Set to the nominal line voltage supplied to the VMX2 unit. This
value is used for both display and calculations of kW, PF etc.
F030 = Voltage Imbalance Trip
Factory Setting = 0 (Disabled)
Range = 1 - 30% or 0 (Disabled)
Sets the trip level for percent voltage imbalance between any
two phases, and the average of the phase to phase voltages.
