3
YORK, A Johnson Controls Company
$
3010
#'""\'*&
F
This parameter defines the operation of the Stall function. This
protection is active if the drive operates in the stall region (see figure)
for the time defined by 3012
STALL TIME
. The “User Limit” is defined in
Group 20 by 2017
MAX TORQUE
1, 2018
MAX TORQUE
2, or the limit on
the
COMM
input.
0 =
NOT SEL
– Stall protection is not used.
1 =
FAULT
– When the drive operates in the stall region for the time set
by 3012
STALL TIME
:
• The drive coasts to stop.
• A fault indication is displayed.
2 =
WARNING
– When the drive operates in the stall region for the time
set by 3012
STALL TIME
:
• A warning indication is displayed.
• The warning disappears when the drive is out of the stall region for
half the time set by parameter 3012
STALL TIME
.
3011
#'""\!p
>>Z
>Z
F>Z
This parameter sets the frequency value for the Stall function. Refer to Figure.
3012
#'""'*
]
F
This parameter sets the time value for the Stall function.
3013
!"&\'*&
F
Removal of motor load may indicate a process malfunction. The protection is activated if:
• The motor torque drops below the load curve selected by parameter 3015
UNDERLOAD CURVE
.
• This condition has lasted longer than the time set by parameter 3014
UNDERLOAD TIME
.
• Output frequency is higher than 10% of the nominal frequency.
0 =
NOT SEL
– Underload protection is not used.
1 =
FAULT
– When the protection is activated the drive coasts to stop. A fault indication is displayed.
2 =
WARNING
– A warning indication is displayed.
3014
!"&'*
]
F
Time limit for underload protection.
3015
!"&!
This parameter provides five selectable curves
shown in the figure.
• If the load drops below the set curve for longer
than the time set by parameter 3014, the
underload protection is activated.
• Curves 1…3 reach maximum at the motor
rated frequency set by parameter 9907
MOTOR
NOM FREQ
.
• T
M
= nominal torque of the motor.
• ƒ
N
= nominal frequency of the motor.
3017
!'\"'
Defines the drive response if the drive detects a ground fault in the motor or motor cables.
0 =
DISABLE
– No response.
x
ENABLE
h+4,^B
!'
\"'
3,93=2,,2,2>
2Q_\,\ =,2
23 =,2
! 7
!2,2
4,
#
f
Torque
95%
3011
STALL FREQ HI
Limit
User
Stall region
80
60
40
20
0
2.4 * ƒ
N
3
2
1
5
4
T
M
70%
50%
30%
ƒ
N
(%)
Underload curve types
f
Summary of Contents for York AYK550
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Page 267: ...3 YORK A Johnson Controls Company G Fig 9 7 8 6 H 8 94 7...
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