Slack Cable Detection - Magnetek Impulse G+ series 4 Instruction Manual

Slack Cable Detection

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IMPULSE •VG+ Series 4 offers Slack Cable Detection for hoist applications. The Slack Cable
condition is detected when the torque output is drastically reduced and has dipped below a set-point
(C11-03) level. When Slack Cable condition occurs, the output action is defined by the C11-02 which
has six selections.
The Slack Cable Detection is not executed, unless both of the following conditions are true:
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Setup Procedure:
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Parameter
C11-01
C11-02
IMPULSE®•G+ & VG+ Series 4 Instruction Manual – February 2017
5-46
The output frequency is between C11-04 and C11-06.
The Slack Cable Detection delay time is between C11-05 and C11-07.
Set the Slack Cable Detection torque level (C11-03), by lowering the hoist without load
at a constant speed that the hoist would normally run during the operation. Monitor
and record the torque reference (U01-09). Repeat the above operation several times
to ensure an accurate reading.
Then set C11-03 = [(U01-09)-2].
Enable Slack Cable Detection by setting the C11-01 to 1.
Select output action when Slack Cable is detected by defining C11-02.
Table 5-36: Slack Cable Detection
Display Function
Slack Cable (For Hoist Application) Determines
whether Slack Cable Detection is
enabled.
0 Disabled
1 Enabled
2 Enabled by MFDI
Action at SLC Multi-function output that occurs at
Slack Cable Detection. For all
Selections, RAISE command is
permitted (MFDO = 28).
0 No Action Alarm Only
1 No Act/C3-04 Next LOWER command is at
Lower Limit 1 speed (C03-04).
2 Decel/C3-04 Decelerate to Lower Limit 1 Speed
C03-04 by C03-05. Continued
LOWER commands allowed, but
at C03-04 as max speed.
3 Decel/No Opr Decelerate to Lower Limit 1 Speed
C03-04 by C03-05. Continued
LOWER commands are not
allowed.
4 Dec Stop/C3-04 Decel (by C03-05) to Lower Limit 1
Speed C03-04. Continued
LOWER commands allowed, but
only at C03-04 speed.
5 Dec Stop/No Opr Decel (by C03-06) to stop.
Continued LOWER commands are
not allowed.
Range Default Model
0–2 0 VG+
0–5 2 VG+