Emerson EV3 Series, Инструкции по применению

Страница: 12 / 34

AGL_Sol_EV3_E_Rev_01 9
For users who are unable to qualify for EN 61800-3 Category C2, an external EMI filter can be fitted
in front of the drive.
3.4.5 Compressor connection
Table 10 shows information on how to connect the drive to the compressor. The connecting cables
are rated at 90°C. The cable cross-section is rated for a maximum ambient temperature of 60°C.
Drive model
Max output
current [A]
Cable cross-
section [mm²]
1)
@ 60°C ambient
Usable ferrite(s) to
reduce EMC noise
EV3185B 38 10
H63x38x25 KH10
(3 turns)
EV3150B 27 6
H63x38x25 KH10
(3 turns)
1)
Based on: DIN VDE 0298-4 (conductor temperature 90°C, laying method E)
Table 10: Compressor connection
The drive output terminals are named U, V, W. In addition to this, there is a PE terminal which must
be wired directly to the compressor earth point. The cables should be as short and the ferrites as
close to the drive as possible. In any case the motor cables should not cross any other cables to
avoid EMI issues. By using a shielded cable, which is in general not designed for cable lengths less
than 2 meters, ensure proper shielding on both sides to get best results. The use of isolated ring and
isolated blade terminals is mandatory for all terminals to maintain the IP20 class.
3.4.6 Control terminal
Each drive has a 9-pin control terminal including the 9-pin plug counterpart (JITE PTB750B-00-1-09-
3). The 5 V terminals are designed to provide voltage supply to the DLT input, the STO input, ie,
high-pressure limiter (see paragraph 3.4.8
" STO input " ), and if necessary to the RS485 serial
communication circuit. No other usage of these 5 V and 24 V power supplies is allowed.
Figure 5: Control terminal
3.4.7 DLT input
To protect the compressor against high discharge temperatures it is possible to connect a discharge
line temperature sensor (DLT) between the control terminals 1 and 2. This sensor input is
configurable via register [207]. By default, it is disabled.
Sensor specifications:
▪
Type: NTC 10 k
Ω @ 25°C
▪
Accuracy: ± 1%
▪
Powered by: Internal 5 VDC (terminal 2)
▪
Temp. range: -40 to +155°C
▪
Reference: Emerson ECN-G series
The sensor should be mounted on the discharge line approx. 120 mm away from the compressor
outlet.
Caution: Consider the total maximum output
currents:
▪
Terminal 5 V (2, 8) < 150mA