Siemens SIMODRIVE 611A Installation And Planning Manual page 140

9.4 Supply failure buffering/retraction concept for 3–conductor connection
Monitoring module
9
Figure 9-4 Connecting diagram
1-140
1) We recommend that the DC link is connected to ground through the internal
resistor.
2) Jumpers are inserted as standard
3) Connect the electronics power supply to the DC link in order that the elec-
tronics power supply can be maintained even after a power failure. 2x1.5
2
mm cable, routed short–circuit proof.
4) If terminal 72 and terminal 73.1 are looped into terminal 9 and terminal
64, then S1.2 must be switched to ON = fault signal, and then the ready
signal (terminal 72, 73.1, 73.2 and 74) is independent of terminal and 63
and terminal 64.
5) Terminals L1, L2 are only provided for the following I/R modules: 80/104 kW
and 120/156 kW. In this case, I
Version: gL.
If L1, L2 go into a no–voltage condition, when the line contactor drops–out,
the drive pulses are canceled (terminal 48). In this case, L
be supplied using an uninterruptable power supply (UPS).
I is defined by the maximum conductor cross–section.
N fuse
6) For a coupling to a numerical control, connect X131 to the NC reference
potential. This cable is routed in parallel to the speed setpoint cable. For a
digital drive group with 840C/840D, leave the terminal open–circuit.
Do not connect for a digital drive group, with 840C.
If a monitoring module is integrated in the system, terminal 63 on the monitor-
ing module must be looped through via the ready–relay terminal 72 – terminal
73.1 (NO contact) of the NE module.
The ready relay of the NE module must be set to ready (S1.2 OFF setting).
NE–module Drives
X111
73.1
72
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4 A.
Nfuse must be
Monitoring module Drives
9
63
6SN1197–0AA00 02.98 Edition
SIMODRIVE 611 (PJ)
02.98
and L can still
1 2