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EC-2000-CES MANUAL
24
5.
TACH PULSES/REV
The control tachometer feedback comes from a mechanical unit tachometer or press
resolver depending on the position of Jumper J4 on the clutch driver board. Set the speed
feedback frequency for the AC tachometer generator based on the resolver or
mechanical unit you have. See the table, below. For finer tuning, see Menu A, Parameter
20.
Table 6: Mechanical Unit Tach Pulses/REV Setting
DRIVE
PPR
Obsolete Drives ACM’s
10
AS-14 / 25 – Fractional “FD”
12
AS-27 / AT-320
16(Default)
CES DRIVES
28
VT-320 P-base, AT-360, AT-440
30
Pulse Pickup, Gear
30, 60, 120, 180
Tach From Resolver**
See Notes Below
**Tachometer From Resolver. Place clutch driver board jumper J4 in the A position.
The resolver outputs a pulse 4096 times per revolution. This output is connected to
the pulse input (term 1 & 2) on the clutch driver board after being
scaled by jumper J6 with a divisor of 2 (low) or 8 (high). The default is
8 (high.
HZ = 4096 / (Divisor * 60) (at one stroke per minute)
4096 pulse / 8 * 60 sec = 8.533 HZ (for a divisor of 8)
To calculate PPR: PPR = HZ * 60 / Gear Ratio
For a ratio of 25 PPR = 8.533 * 60 / 25 = 20.48 PPR
Since this is not a preprogrammed PPR, a PPR of 16 would be used along with a scale
factor of 20.48 / 16 = 1.28 (Parameter A-15)
6.
CLUTCH MIN RPM
The minimum speed for the clutch. ( DEFAULT = 0)
7.
CLUTCH MAX RPM
The maximum speed of the clutch. DEFAULT = (1000 For CES Drives)
Содержание 015-000248-2002
Страница 7: ...EC 2000 CES MANUAL 7 Figure 1 Eddy Current Drive Block Diagram ...
Страница 8: ...EC 2000 CES MANUAL 8 Figure 2 EC 2000 CES Keypad Display ...
Страница 12: ...EC 2000 CES MANUAL 12 ...
Страница 16: ...EC 2000 CES MANUAL 16 Figure 4 Keypad Cutout Template to Scale Inches ...
Страница 17: ...EC 2000 CES MANUAL 17 Figure 5 Keypad Dimensions to Scale ...