Magnetek IMPULSE G+ 4 Series User Manual

IMPULSE
®
•G+ & VG+ Series 4 Technical Manual
November 2020
Page 86
5.2.5 Phantom Stop
Phantom Stop allows quick identification of a faulted VFD while stopping other VFDs with Phantom Stop enabled.
The Phantom Stop feature is designed to stop the VFD operation using the stopping method selected in C03-10
when a Phantom Fault input (H01-01–H01-08 = 5F or 63) is active. The VFD will indicate a Phantom Fault has
occurred by blinking the LED on the RUN key in sequence of two short bursts. The VFD will resume normal
operation when a Phantom Fault is removed.
Table 5-19: Phantom Stop Parameter Settings
NOTE: For settings of 0 or 2 deceleration is by B05-08.
5.2.6 Load Sharing/Torque Following
The Load Share function allows the VFD to follow the limit switch frequency references and stopping methods
when enabled. This feature is useful when there are two or more mechanically coupled motors that are each
controlled by a VFD.
Table 5-20: Load Share Limit Parameter Settings
The Load Share function allows one or more IMPULSE
®
•VG+ Series 4 driven motors to be connected in a Master/
Follower fashion such that Follower VFD will follow the torque reference of the master VFD. It can be configured in
two ways, either as a dedicated Follower or as a Master/Follower that can be switched on or off by multi-function
digital input. When in Load Share Mode (Follower), it is essentially a torque helper to the master motor. The Master
outputs the commanded amount of torque from a ± 10 VDC analog signal into the Follower, which correlates
directly to the direction and quantity of torque the Follower should apply to its own motor. This can be particularly
useful when two or more motors are driving a common load (i.e. single drum, gear box, etc.) and it is important that
they share the load. This will allow one VFD/motor to handle the speed reference and speed regulation while the
others simply help the master. This overcomes inherent problems with having more than one VFD/motor trying to
regulate speed on a common load. The Load Sharing function can be used when the master is configured for Hoist
or Traverse motions (i.e. for a hoist motion, two or more motors coupled to a single gearbox; for a traverse motion,
a circular crane, multiple motors driving a single end truck, cable reel, etc).
NOTE: The master VFD can be an IMPULSE
®
•VG+ Series 1, 2, 3, or 4.
When using Multi-function digital input H01-0x = 66—”Load Share” (Torque Following mode), setting
C03-11 = Enabled will allow the VFD to accept the Limit Switch inputs where H01-0x = 06–0D. When C03-11 =
Disabled (Factory Default), the Follower will ignore any change in state of the Limit switch inputs. The setting of
this parameter is only in effect when the Multi-function digital input H01-0x = 66 “Load Share” is ON. It is important
to understand that when in Load Sharing mode, the Follower is only supplying torque to help the Master. The
Master typically handles the logic of limit switches or other special functions. If this is not the case, each VFD may
try to move or decelerate at a different speed placing extra strain on the drive train and potentially resulting in a
speed deviation fault.
Parameter Display Function Range Default
C03-10 Phantom Stop Met Stopping Method when Multi-Function Input =
5F and 63
0–2 1
0 Decel to Stop
1 Coast to Stop
2 Use B3-03 Method
Parameter Display Function Range Default
C03-11 Load Share Limit See below for detailed description 0, 1 0
0 Disabled
1 Enabled

Magnetek IMPULSE G+ 4 Series Specifications

General

Brand	Magnetek
Model	IMPULSE G+ 4 Series
Category	DC Drives
Language	English