Siemens SINUMERIK 840C Installation Instructions Manual page 571

7 Drive Machine Data (SIMODRIVE Drive MD)
7.3.2 Drive MD (data description)
When DELTA is calculated, it must be taken into account that the torque setpoint limitation
m may change in cyclic operation. This limitation acts on the maximum speed difference
set,limit
n .
max
m
set, limit
n = ––––––––––––––––––––––– x –––––––––––––––––––
max
n-controller P-gain
Since the speed setpoint is specified by the NC, there is an operating time between the 611D
speed controller and the NC which is taken into account in the DELTA calculation through
machine data "Op. time factor IPO/NREG cyc. f. RFG" (MD 1665).
DELTA = n x MD 1665 (operating time factor)
max
Caution:
This machine data is relevant only for Siemens-internal purposes and must not be altered.
1700
Default value
0000
This machine data is used to display the status of the binary inputs.
Value table:
Bit 0 Control unit enable (internal module function), including marking
according to MD 1003, bit 5
Bit 1 Pulse enable (terminal 663) (module-specific pulse suppression)
Bit 2 Pulse enable (terminal 63/48) of I/RF unit (central drive pulse
suppression)
Bit 3 Sum signal HW pulse enable:
Bit 4 Temp. monitor heat sink responded
Bit 5 Setup mode (terminal 112) of I/RF unit (set-up mode message)
Bit 6 Drive enable (terminal 64/63) of I/RF unit (Central drive enable setpoint
= 0)
Bit 7 Not assigned
Bit 8 Motor and power section temp. prewarning
Bits 9-15 Not assigned
1701
Default value
0
This machine data is used to display the voltage level at the DC link in normal or set-up mode.
The DC-link voltage V
DClink
7–156
IPO cycle
Speed controller cycle
Status of binary inputs
Lower output limit Upper output limit
0000
– Stored hardware sum signal
– Axial pulse enable by PLC via
611D control word
DC link voltage
Lower output limit Upper output limit
0
is measured continuously.
©
Siemens AG 1992 All Rights Reserved
Units
7FFF Hex
Units
32 767
6FC5197- AA50
SINUMERIK 840C (IA)
07.97
Active
at once
0: off
1: on
0: off
1: on
Active
at once
V