Siemens 6RA7086-6KS22 Operating Instructions Manual page 485

05.05
PNU Description
P088 Brake closing time
When the "Switch-on" or "Inching" or "Crawling" command is cancelled, or
(G140)
when the "Switch-on" command is not applied, or when the "Fast stop"
(G187)
command is input, the internal controller disabling signal, and thus the
thyristor gating pulse disabling signal, is not actually activated after n<n min
has been reached until the time delay set in this parameter has elapsed.
During this period, the drive continues to produce a torque (operating state
I, II or – –), so as to give the holding brake enough time to close.
P089 Maximum wait time for voltage to appear at power section
When the line contactor has dropped out and the "Switch-on" or "Inching" or
"Crawling" command is applied, the converter waits in operating states o4
and o5 for voltage to appear at the power section, for the actual field current
value (K0265) to reach > 50% of the field current setpoint (K0268). The
corresponding fault message is activated if no power section voltage and no
field current is detected. This parameter specifies the maximum total delay
period in which the drive may dwell in operating states o4 and o5 (response
threshold for function which checks for voltage at power section, see
parameter P353).
P090 Stabilization time for line voltage
When the line contactor has dropped out and the "Switch-on" or "Inching" or
"Crawling" command is applied, or after a phase failure has been detected
in the armature or field mains supply with active "Automatic restart" function
(P086>0), the converter dwells in operating state o4 and o5 until voltage
appears at the power section. Line voltage is not assumed to be applied to
the power terminals until the amplitude, frequency and phase symmetry
have remained within the permissible tolerance for a period exceeding the
setting in this parameter. The parameter applies to both the armature and
field power connections.
Caution:
The setting in P090 must be lower than the settings in P086 (except when
P086=0.0) and P089!
P091 Setpoint threshold
i001: Threshold for function "Switch on only if setpoint is low"
The converter can be switched on only if a setpoint
|K0193| ≤ P091.001 is applied to the ramp-function generator
input. If the applied setpoint is higher, the converter dwells in
state o6 after "switch-on" until the absolute setpoint value is
≤ P091.001.
i002: Threshold for function
"Automatic pulse disable if setpoint is low"
If |n-set| (|K0193|) and |n-act| (K0166) are less than P091.002,
the firing pulses are disabled and the drive goes into state o2.0.
SIEMENS AG 6RX1700-0AD76
SIMOREG DC Master Operating Instructions
Value range
[Unit]
Steps
0.00 to 10.00
[s]
0.01s
0.0 to 60.0
[s]
0.1s
0.01 to 1.00
[s]
0.01s
0.00 to 199.99
[%]
0.01%
[SW 2.0 and later]
Parameter list
No. indices See
Factory Change
setting (Access /
Type Status)
Ind: None P052 = 3
FS=0.00 P051 = 40
Type: O2 Online
Ind: None P052 = 3
FS=2.0 P051 = 40
Type: O2 Online
Ind: None P052 = 3
FS=0.02 P051 = 40
Type: O2 Online
Ind: 2 P052 = 3
FS= P051 = 40
i001: 199.99 Online
i002: 0.00
Type: O2
11-21