GEH-6641E
—————— Function Description ——————
64
Ch.1
1.5.3.3 Control from a LAN, Usage of Fast Stop
Command select = "Digital level"
This setup represents one possible example for system applications.
The keyboard/display module is not required.
A LAN interface card is used to send commands from a PLC to the drive, with the mandatory Terminal Enable
permissive.
En/Disable control logic is not active: enable sequencing is controlled from the LAN. Jog is controlled from the
keyboard, when present.
Fast stop command is used for Emergency Stop, employing a digital input for redundancy to the LAN system.
Parameters can be set as per example in following table.
Complete wiring information for digital inputs may be found in the hardware reference section. The drive behaviour
is described below.
At power up, the power converter firing will not be initiated even if Terminal Enable is asserted (driven high).
Once Terminal Enable is asserted, no actuation occurrs until the Digital enable from the LAN is asserted. When
the latter is asserted, the power converter firing is initiated and Motor magnetization sequence is executed.
The LAN asserts Start/Stop command to unlock Ramp and speed regulation. The [I] key of the keyboard, if
present, has the same effect.
When Start/Stop command is negated, the drive is stopped, but regulation remains active at zero speed. This way
tension on processed material can be maintained.
Negating Terminal Enable will terminate converter firing at any time, and the motor will coast to a stop.
Table 1.5.3.3-1: Example Setup for LAN Control with Wired Fast Stop
Parameter description Index Value Comments
Command select 4002
"Digital level"
En/Disable mode 4004 "Stop FS & Spd=0"
Dig Enable src 0156 "B0 W1 decomp" Bit 0 of bitmapped input Word 1
Term StrStp src 0153 "ONE" This source bypassed (AND logic)
Dig StrStp src 0157 "B1 W1 decomp" Bit 1 of bitmapped input Word 1
Term Start src 9210 Do not care This source not used
Term Stop src 9211 Do not care This source not used
FStop src 0154 "DI 1 monitor" tie Fast stop input to term 13
DI 1 inversion 4011 "Inverted"
Safety critical function requires negative logic
Jog cmd src 8015 "NULL" Jog is commanded from the keyboard
Jog invers src 8018 "NULL" Jog inversion is commanded from the keyboard
SBI enable 8999 "Enabled" enable operation of LAN interface
W1 decomp src 9361 "SBI Drv W0 mon" first incoming process data channel from LAN
TAV35331
1.5.4 Unmanned Installation
Command select = "Terminal level"
This setup represents an example for applications like remote pumping stations, where external logic may be
minimal, and it is required for the drive to restart automatically after a power fault.
The keyboard/display module is not required.
Terminal Star/Stop is used to control the drive, with the mandatory Terminal Enable permissive. En/Disable
control logic is active, in order to have the drive disabled when stopped. Although possible when keyboard is
present, Jog is normally not used. Fast stop command is not used. Parameters can be set as per example in table
following. Complete wiring information for digital inputs may be found in the hardware reference section. The
drive behaviour is described below.
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