Control Techniques 0471-0144-02, Руководство по установке

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SPM Power Selector Module Installation Guide
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Figure 4-3 Master / slave parallel connections
4.3 SPM Power Selector Module control connections
As shown in Figure 4-1 on page 12, the SPM Power Selector Module requires an
external 24Vdc power supply. The recommended power supply rating is detailed in
section 7
Technical data on page 28.
A digital output (control terminal 3) is available from the SPM Power Selector Module.
This goes active high when Master 2 is selected. This digital output can be connected to
a digital input on the drive or Solutions Module to pass the selected operating mode.
A switch is required between control terminals 4 and 5 on the SPM Power Selector
Module to select between Master 1 and 2. When the switch is open, Master 1 (Parallel
module operation) is selected. Master 1 indicator LED will be lit and relay contacts 5, 6
and 7, 8 are closed. When the switch is closed, Master 2 (Single module operation) is
selected. Master 2 indicator LED will be lit and relay contacts 1, 2 and 3, 4 are closed.
Table 4-2 Selection of operating modes
MASTER-2 MASTER-1 SLAVE
The recommended 24Vdc power supply fuse (F1) is 3A, 50Vdc. This information is listed
on the SPM Power Selector rating label.
NOTE
The state of the switch connected between the control terminals 4 and 5 is only
monitored at power up.
NOTE
Control
Terminals
4 and 5
Master
selected
Digital output
(Control
terminal 3)
Relay 1
Contactor terminals
1 & 2 (K1) and
3 & 4 (K2)
Relay 2
Contactor terminals
5 & 6 (K3) and
7 & 8 (K4)
Open 1 0V Open Closed
Closed 2 24V Closed Open