Armature current limits (current limits) – GE Industrial Solutions DV-300 DC Drive Users Manual User Manual
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DV-300 Adjustable Speed Drives
——— FUNCTION DESCRIPTION ———
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6.5.2. Armature current limits (Current limits)
LIMITS
Current limits
[715]
T current lim type
[7]
T current lim [%]
[8]
T current lim + [%]
[9]
T current lim - [%]
[10]
In use Tcur lim+ [%]
[11]
In use Tcur lim- [%]
[13]
Current lim red [%]
[342]
Torque reduct
The current effects the input of the current regulator and only take into account the armature current.
Parameter description
No.
Value
Standard
Configuration
min
max
Factory
American
Factory
European
T current lim type
T lim +/- (0)
T lim mot gen (1)
715
0
1
0
0
-
T current lim [%]
7
0
200
150
150
**
T current lim + [%]
8
0
200
150
150
**
T current lim - [%]
9
0
200
150
150
**
Curr limit state
Curr. limit not reached (0)
Curr. limit reached (1)
349
0
1
Digital output 5 ***
In use Tcur lim+ [%]
10
0
200
-
In use Tcur lim- [%]
11
0
200
-
Current lim red [%]
13
0
200
100
100
-
Torque reduct
Not active (0)
Active (1)
342
0
1
Not active (0) Not active (0)
*
* This function can be assigned to one of the programmable digital inputs.
** This parameter can be assigned to a programmable analog input.
*** This function can be assigned to one of the programmable digital outputs.
T curr lim type
This parameters determines the behaviour of the drive in current limit condition.
T lim +/-
The active positive torque limit is T current lim and the active
negative torque limit is T current lim -.
T lim mot/gen
With this selection 3 conditions are possible:
1 - If the motor speed > +1% of Motor max speed the
active positive torque limit is T current lim+ and the ac-
tive negative torque limit is T current lim-.
2 - If the motor speed < -1% of Motor max speed the
active positive torque limit is T current lim- and the ac-
tive negative torque limit is T current lim+.
3 - If -1% of Motor max speed < motor speed < +1%
of Motor max speed the active positive torque limit is
T current lim+ and the active negative torque limit is T
current lim+.