Relay Outputs - ABB PCS100 AVC-20 User Manual

PCS100 AVC-20 User Manual
10 Isolated thermal switch/24 V
11 Isolated thermal switch/24 V
12 Dry contact only: Return Wire
13 Dry contact only: Start on closing edge
14 Dry contact only: Return Wire
15 Dry contact only: Stop on open edge: Inhibit
while open; Reset on open edge
16 Terminal
Following control connections are available for wired remote control or monitoring of PCS100 AVC-20.
12
13
14
15
16
3 wire
Start/Stop
Note: "No external control" link is fitted in factory by standard.
11.2.2

Relay Outputs

The product status is indicated by the relay outputs mounted on the front of the Auxiliary Master Module and may
be used for external customer monitoring.
Relay
RUN
WARNING
FAULT
Table 11-2: Remote Control and Monitoring via Customer Terminals
12
13
14
15
16
4 wire
Start/Stop
Figure 11-4: Control wiring options
Product status or description
Active in RUN, AUTO BYPASS, STARTING, STOPPING.
Not active in BYPASS, FAULT
Active if user WARNING condition present (temperature or overload warnings) and
during power up.
Not active if FAULT or PCS100 AVC-20 is powered down.
Table 11-3: PCS100 AVC-20 relay outputs
/24 V , 1 A/NC Transformer overtemperature
AC DC
information.
The transformer is overheating if
this circuit opens. This circuit must
be monitored, and action taken to
reduce the temperature of the
transformer if it is overheated.
Overheating may occur due to
cooling fan failure, cooling path
blockage or current overload.
/24 V , 1 A/NC Transformer alarm – return
AC DC
Start Input – return
Start Input – only used if remote
Start is required
Stop/Reset – return
Stop/Reset – input – link according
to required function
Stop/Reset loop
12
13
14
15
16
Stop/
Inhibit
12
13
14
15
16
No external
control
97