Operating Enable (Enable) Terminal 38 - Control Word 1, Bit 3 - Siemens 6RA7086-6KS22 Operating Instructions Manual

05.05
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:
P648 ≠ 9:
To ensure that the "Operating enable" function can be activated, the conditions defined in the
following diagram must be fulfilled:
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. 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 ramp-function generator, n and I controllers
3. Enter I
set
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
B0250, when P080 = 1)
9.4 Ramp-function generator
See also Section 8, Sheet G136
NOTICE
The following conditions must be fulfilled for the ramp-function generator to work:
− Ramp-function generator enable = 1
− Enable setpoint = 1
SIEMENS AG 6RX1700-0AD76
SIMOREG DC Master Operating Instructions
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).
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.
Bit 3 of connector selected
as control word in P648
1
P661.B (1)
B
Operating enable
(from terminal 38)
= 0
(P370, P371) is reached, the signal "Close holding brake" is output (binector
min
P648
=9 /
Control word 1, bit 3
&
1 = Enable, pulse enable
9
0 = Pulse disable
&
(control word 1.bit 4 = 1)
(control word 1.bit 6 = 1)
Function descriptions
9-11