ABB ACS 502 Series, Инструкция по установке и запуску, Страница: 50 / 92

Chapter 3 – ACS 502 Installation Instructions
3-12 ACS 502 Installation & Start-up Manual
DC coils should be supressed with a diode, although this is not required
because of the small amount of noise generated by these type of circuits. If a
diode is used, it should have a voltage rating greater than or equal to the
supply voltage, and be connected as shown below:
Figure 3-9 shows connections TB1:32 through TB1:40.
Note: The 115 VAC control transformer must be supplied for these terminals
to be active.
Figure 3-9 TB1:32 Through TB1:40
Two-Wire Start
(Dry Contact)
To start the ACS 502 by dry contact (maintained), connect contact to TB1:32
and TB1:34. This will start the drive in Auto when HOA is supplied, and will
start and stop the motor in Bypass when Bypass is supplied.
115 VAC Start
To start the ACS 502 by applying 115 VAC, connect the 115 VAC signal to
TB1:35 and TB1:36. Operation is the same as Two-Wire Start.
Freeze/Fire/Smoke
Protection
Safety interlocks, such as Freeze, Fire, and Smoke protection are normally
closed dry contacts connected in series between TB1:38, TB1:39, and
TB1:40. Remove the jumper wire before making your connection. When the
contact opens, the motor will stop, whether in NORMAL or BYPASS. When
the External Fault indicator is provided (supplied with Bypass Option), the
indicator will illuminate when any of these contacts open.
115 VAC Auxiliary Power 115 VAC is available for customer use. There is approximately 100 VA
available. TB1:46 through TB1:50 are ground, and TB1:51 through TB1:55
are hot.
Figure 3-10 shows connections TB1:46 through TB1:55.
Figure 3-10 TB1:46 Through TB1:55
X50
diode (24 VDC in this case)
24 VDC
-
+
32 33 34 35 36 37 38 39 40
RUN
115V
START
OL
F
R
EEZ
E
SM
O
K
E
/F
IRE
115 VAC
55 54 53 52 51
50 49 48 47 46