Magnetek IMPULSE VG+ Series 3, Инструкция по эксплуатации, Страница: 91 / 183

IMPULSE•VG+ Series 3 Instruction Manual – 07/25/05
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Slack Cable Detection
IMPULSE•VG+ Series 3 offers Slack Cable Detection in the hoist application. 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 6 selections.
The Slack Cable Detection is not executed, unless both of the following conditions are true:
• The output frequency is between C11-04 and C11-06.
• The Slack Cable Detection delay time is between C11-05 and C11-07.
Setup Procedure:
• To 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 (U1-09). Repeat above operation several
times to ensure an accurate reading.
• Then Set C11-03 = [(U1-09)-2].
• Enable Slack Cable Detection by setting the C11-01 to 1.
• Select output action when Slack Cable is detected by defining C11-02.
Parameter
Code
Display Function Range Initial Value
Access
Level
C11-01 Slack Cable 0/1 (For Hoist Application)
Determines whether Slack
Cable Detection is enabled. 0~1 0 Adv
0 Disabled
1 Enabled
C11-02 Action at SLC Multi-function output that
occurs at Slack Cable
Detection. For all Selections,
RAISE command is permitted
(MFO=28). 0~5 2 Adv
0 No Action Alarm Only
1 No Act/C3-04 Next LOWER command is at
Lower Limit 1 speed (C3-04).
2 Decel/C3-04 Decelerate to Lower Limit 1
Speed C3-04. Continued
LOWER commands allowed,
but at C3-04.
3 Decel/No Opr Decelerate to Lower Limit 1
Speed C3-04. Continued
LOWER commands are
not
allowed.
4 Dec Stop/C3-04 Decel (by C3-05) to Lower
Limit 1 Speed C3-04.
Continued LOWER
commands allowed, but at C3-
04.
5 Dec Stop/No Opr Decel (by C3-06) to stop.
Continued LOWER
commands are
not allowed.