IMPULSE•VG+ Series 3 Instruction Manual – 07/25/05
5-39
Snap Shaft Detection
The snap shaft condition is detected when the speed of two shafts changes per setting of C11-10,
delta speed, after a delay time C11-11, action of C11-09 will be taken.
C11-03 SLC Detect Torq Percentage of Output Torque
below which the enabled
Slack Cable Detection is
activated—as long as the
Frequency output is between
C11-04 and C11-06, and the
delay time is between C11-05
and C11-07.
0–100% 30 Adv
C11-04 SLC Detect Spd 1 The Frequency Output that is
required for the enabled Slack
Cable Detection to be
activated. It corresponds to
Slack Cable Detection Delay
Time 1 (C11-05).
0–150Hz 2 Adv
C11-05 SLC Delay Time 1 The delay time before the
enabled Slack Cable
Detection can be activated. It
corresponds to Slack Cable
Detection Speed 1. Prevents
false outputs.
0.00–2.55sec. 0.50 Adv
C11-06 SLC Detect Spd 2 The Frequency Output below
which the enabled Slack
Cable Detection can be
activated. It corresponds to
Slack Cable Detection Delay
Time 2 (C11-07).
0–150Hz 60 Adv
C11-07 SLC Delay Time 2 The delay time before the
enabled Slack Cable
Detection can be activated. It
corresponds to Slack Cable
Detection Speed 2. Prevents
false outputs.
0.00–2.55sec. 0.10 Adv
Parameter
Code Display Function Range Initial Value
Access
Level
Parameter
Code Display Function Range Initial Value
Access
Level
C11-08 Snap Shaft 0//1 Determines whether snap
shaft detection is enabled.
0-1 0 Adv
0 Disabled
1 Enabled
C11-09 Action at Snap Action at snap shaft detection
(drive train discontinuity)
0-1 0 Adv
0 Brake/fault out
1Alarm Only
C11-10 SS Delta speed Snap shaft speed difference 0-150 Hz 1.0 Hz Adv
C11-11 SS Delay Time Snap shaft delay time (gear
backlash time)
0-2000 m.sec. 250 Adv
C11-12 SS Gear Ratio Num Snap shaft gear ratio
numerator
1-10000 10000 Adv
C11-13 SS Gear Ratio Den Snap shaft gear ratio
denominator
1-10000 10000 Adv
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