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MSD Servo Drive Compact Operation Manual
47
[
Appendix
]
Id no.: CA97555-001, Rev. 3.0 - Date: 06/2012
A Appendix
A.1 Current capacity of servo drives
The maximum permissible servo drive output current and the peak current are
dependent on the mains voltage, the motor cable length, the power stage switching
frequency and the ambient temperature. If the conditions change, the maximum
permissible current capacity of the servo drives also changes.
MSD Servo Drive Compact for 1 x 230 V
Device
Switching
frequency of
power stage
Ambient
temperature
maximum
Rated
current
I
N
[A
eff
]
Peak current
200% (2 I
N
)
300% (3 I
N
)
[kHz]
[°C (°F)]
at 1 x 230 V [A
eff
]
for time
[s]
[A
eff
]
for time
[s]
G394-030
4
+45 (+113)
3.0
6.0
10
9.0
0.08
8
+40 (+104)
3.0
6.0
9.0
1)
0.08
1)
16
+40 (+104)
2.0
4.0
6.0
1)
0.08
1)
G394-059
4
+45 (+113)
5.9
11.8
10
-
-
8
+40 (+104)
16
+40 (+104)
G394-080
4
+45 (+113)
8.0
16.0
10
-
-
8
+40 (+104)
8.0
16.0
16
+40 (+104)
5.4
10.8
1) Automatic power stage switching frequency change to 4 kHz.
Data applies to motor cable length ≤10m. Maximum permissible motor cable length 30 m.
All current ratings with recommended mains choke.
Table A.1 Rated current and peak current C2 to C4 (1 x 230 V AC)
MSD Servo Drive Compact for 3 x 230 V
Device
Switching
frequency of
power stage
Ambient
temperature
maximum
Rated
current
I
N
[A
eff
]
Peak current
200% (2 I
N
)
300% (3 I
N
)
[kHz]
[°C (°F)]
at 3 x 230 V [A
eff
]
for time
[s]
[A
eff
]
for time
[s]
G394-030
4
+45 (+113)
3.0
6.0
10
9.0
0.08
8
+40 (+104)
3.0
6.0
9.0
1)
16
+40 (+104)
2.0
4.0
6.0
1)
G394-059
4
+45 (+113)
5.9
11.8
10
17.7
0.08
8
+40 (+104)
17.7
1)
16
+40 (+104)
17.7
1)
G394-080
4
+45 (+113)
8.0
16.0
10
24.0
0.08
8
+40 (+104)
8.0
16.0
24.0
1)
16
+40 (+104)
5.4
10.8
16.2
1)
1) Automatic power stage switching frequency change to 4 kHz.
Data applies to motor cable length ≤10m. Maximum permissible motor cable length 30 m.
Table A.2 Rated current and peak current C2 to C4 (3 x 230 V AC)