Siemens SIMADYN D Manual page 462

Closed-loop thyristor current control
Test mode
Changing-over the
torque direction
NOTE
I/O
SOL. Significance
AD Hardware address
TH0 Thyristor hold-off time [ms]
Condition: 0.5 ms ≤ TH0 ≤ 131 ms, otherwise, YW2\bit10=1
TCP
Thyristor pulse suppression time [ms]
Condition: 0.0 ms ≤ TH0 ≤ 20000 ms, otherwise, YW2\bit10=1
Monitoring time for torque change M1 ⇔ M2
TCD
(inverse > (TCP + THO + TCD) ⇒ fault)
IPL Pulse inhibit = 1 is immediately effective!
(this is the same as the hardware pulse inhibit ITDC–X5:10.)
(At high currents and speed this can result in inverter
commutation faults.)
UNM Mode: Handling the undervoltage condition (Sitor)
UNM=0: Undervoltage signal as alarm (YW1\bit 6)
UNM=1: Transition into the status: Pulse inhibit
UNM=2: Transition into the status: Pulse inhibit +
ION On command for the closed-loop thyristor current control,
only if IOF = 0. ION is only level controlled!
A transition from off ⇒ operation is only realized if the
sum of the setpoints WC1+WC2 ≥ WCL.
IOF Off command for the closed-loop thyristor current control
IOF has priority over all of the other control inputs.
ON1 Enable, only torque direction M1,
for OF1 = 0 & OF2 = 0
OF1 Off command, torque direction M1
For QON = 1, only negative setpoints are executed.
ON2 Only enables torque direction M2,
for OF2 = 0 & OF1 = 0
OF2 Off command, torque direction M2
For QON = 1, only positive setpoints are executed.
5-22
The controlled test mode is selected with input SOL.ISE = 1. The FB-PC6
firing angle controller immediately executes firing angle PC6.AQL. The
torque direction is derived from the sign of the current setpoint if a torque
direction (SOL.ON1 , .ON2) was not forced.
For the torque changeover, the switch-over logic stage sets the current
controller (CPI.SV) to the voltage actual value of the EMF, refer to the no-
load amplitude, using the signal SOL.QCS. The EMF can also be set, for
the current controller as EMF pre-control angle (CPI.SVC=1), into the
"continuous tracking" mode.
To enable the pulses, a jumper ITDC -X5:7 \ 10 must be inserted.
An "open-circuit" input is interpreted as "external hardware pulse
inhibit" and causes the pulses to be immediately inhibited!
total pulse inhibit (HW-ITDC)
Value\connection
(Initialization connection/
default: 10 ms)
(Initialization connection/
default: 2 ms)
(Default: 50 ms)
(Default: 0)
(Default: 2)
(Default: 0)
(Default: 0)
(Default: 0)
(Default: 0)
(Default: 0)
(Default: 0)
System- and communication configuring D7-SYS - SIMADYN D
Edition 06.2002