Siemens 3UG4 - Operator Controls and Connection Terminals

3UG4651 speed monitoring relay
12.2 Operator controls and connection terminals
3UG4 / 3RR2 monitoring relays
308 Manual, 05/2016, NEB927043002000/RS-AC/004
12.2
Operator controls and connection terminals
Front view / terminal labeling 3UG4651
Front view
Description
Position digits
①
Terminal block (removable):
Connection is possible using screw terminals or spring-loaded terminals.
②
Arrow keys for menu navigation
③
SET key for menu navigation
④
Device article number
⑤
Label
⑥
Legend for menu
⑦
Display for parameterization, actual-value indication, and diagnostics
Terminal labels
A1+
Rated control supply voltage ∼ / +
A2-
Rated control supply voltage ∼ / -
24V
Supply voltage for pulse input IN1 (24 V / max. 50 mA)
IN1 Pulse input for pnp-switching three-wire sensor (for 0 V DC/ +24 V pulses)
0V
Supply voltage for pulse input IN1 (0 V / max. 50 mA)
EN
Enable
RES
Reset
IN2
Pulse input for two-wire NAMUR sensor or mechanical contact
8V2
Supply voltage for pulse input IN2
12 Output relay K1 CO contact NC contact
11
Output relay K1 CO contact root
14
Output relay K1 CO contact NO contact
You can find additional information on the connection terminals and the permissible
conductor cross-sections in the Chapter "Connection methods (Page 21)".
You can find information on connecting in the Chapter "Circuit diagrams (Page 315)".