Toshiba TE2 Series Instruction Manual page 84

(Bypass Contactor Opens)
Full Spe ed
Figure APP2.2: Pump-Flex Deceleration Graph
TE2 Series Digital Solid State Soft Starter User Manual
Setup and Use
Pump systems vary greatly. To accommodate this, the Pump-Flex
Deceleration control feature is designed to provide complete flexibility in
how the deceleration process takes place by using the following
settings:
Deceleration begins when a Stop command is given (or the Run
command is removed). If there is a Bypass Contactor, it will open
immediately, putting the power control back to the SCRs.
Stop Command
F027: Decel Ramp Time
Time
F024 = Deceleration Ramp
Factory Setting = 0 (Disabled)
Range = 0 - 2
When F024 = 0, the deceleration feature is disabled.
When F024 = 1, the deceleration feature is enabled AND the overload
protection feature (from F003 - F005) remains active. When a
Stop command is given, the starter begins to apply Deceleration
voltage. However, if an overload trip occurs, the starter ceases
applying Deceleration voltage and the motor coasts to a stop to
prevent additional motor heating and potential motor damage.
When F024 = 2, the deceleration feature is enabled and deceleration
will continue even when an overload condition trips. This is
to be used only when the risk of damage due to an uncontrolled
shutdown is considered worse than the potential damage to the
motor.
WARNING!
Setting F024 = 2, presents significant risk of over-heating
the motor beyond its design limits which could result in
motor damage and fire hazard. Do this only in
circumstances where the potential for mechanical damage
outweighs the risk of motor damage and fire.
F025: Begin Decel Level
(Immediate step down)
Check Valve
Closes
F026: Decel Shut Off
(VMX Output Off)
75 |
= Motor Torque
= Pump Output
P a g e
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