WEG PSRW, Руководство пользователя

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Signals
PSRW | 5-3
5
The manual mode, however, requires a transition edge (either rising, falling or both), where the time between the
rise and fall is monitored.
Rising
+ Vdc
0 Vdc
Falling
+ Vdc
0 Vdc
+ monitored
+ Vcc
0 Vdc 0 Vdc
+ Vdc
(a) Reset by rising edge (b) Reset by falling edge (c) Monitored reset
Figure 5.3: (a) to (c) Reset modes
In the mixed mode, a reset input is used to validate manual and automatic inputs. The validation of the manual
inputs only happens when there is a transition rising edge. For automatic inputs, the + Vdc level must be maintained.
5.3 RESET
The RST_1 and RST_2 allows the PSRW to verify an EDM (External Device Monitoring) feedback signal (series of
contacts) from the external contactors, and to monitor Manual/Automatic operation.
ATTENTION!
The Reset command must be installed outside the danger area in a position where the danger area
and the entire work area concerned are clearly visible.
ATTENTION!
It must not be possible to reach the Reset command button from inside the danger area.
Table 5.1:
Reset operation mode
Mode Type Reset Connection
Automatic
With EDM
24 V
K1 K2
RST_x
Without EDM
RST_x
24 V
Manual
Without EDM
K1
K2
24 V
RST_x
Without EDM
24 V
RST_x
5.4 AUXILIARY OUTPUT
The auxiliary output is a programmable signal output exclusively related to its respective safety output. Normally is
connected a signaler, used to indicate visually of the status of:
„
Digital inputs.
„
Reset inputs.