Function descriptions 02.00
9-10 SIEMENS AG 6RX1700-0AD76
SIMOREG DC Master Operating Instructions
9.3.4 Operating enable (enable) terminal 38 - control word 1, bit 3
The Enable signal is HIGH active (log."1" state = Enable).
The following operating modes are possible:
P648 = 9: The control bits in control word 1 are input bit-serially. The operating enable command is
generated from the AND operation between the enable signal from terminal 38 and the
binector selected in P661 (see Section 8, Sheet G180).
P648 ≠9: The connector selected in P648 is used as control word 1. Bit 3 of this connector is
ANDed with the signal that is generated as for P648=9 to produce the operating enable
signal.
To ensure that the "Operating enable" function can be activated, the conditions defined in the following
diagram must be fulfilled:
&
9
=9/
1
P648
&
P661.B (1)
B
Control word 1, bit 3
1 = Enable, pulse enable
0 = Pulse disable
Bit 3 of connector selected
as control word in P648
Operating enable
(from terminal 38)
Sequence of operations for enabling operation (if a switch-on command is applied):
1. Enter the "Enable operation" command
2. With a positive brake release time (P087), output a "Release holding or operating
brake" signal (binector B0250 = 1) and wait for P087 to run down in operating state o1.0,
with a negative brake release time (P087 negative), go to step 3 immediately, brake
remains closed (binector B0250 = 0)
3. Technology controller, ramp-function generator, n and I controllers are enabled
4. Converter reaches operating state I, II or – –
5. When a negative brake release time (P087) has run down, output signal "Release holding or
operating brake" (binector B0250 = 1).
Sequence of operations for cancellation of operating enable:
1. Cancel "Enable operation" command
2. Disable technology controller, ramp-function generator, n and I controllers
3. Enter I
set
= 0
4. The pulses are disabled when I = 0
5. Output signal "Close operating brake" (binector B0250 = 0, when P080 = 2)
6. The converter reaches operating state 0.10 or higher
7. Drive coasts to a standstill (or is braked by the operating brake)
8. When n < n
min
(P370, P371) is reached, the signal "Close holding brake" is output (binector
B0250, when P080 = 1)
9.4 Ramp-function generator
See also Section 8, Sheet G136
NOTE
The following conditions must be fulfilled for the ramp-function generator to work:
− Ramp-function generator enable = 1 (control word 1.bit 4 = 1)
− Enable setpoint = 1 (control word 1.bit 6 = 1)
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