IMD 100 Integration manual 4189360015 Rev. G
Functions description
Page 57 of 243
The following table describes the states of the IMD (some states are omitted since they will not be
seen by the user). In the conditions to proceed column, the conditions for leaving the state are given.
Conditions to proceed that are user or application actions (either through the IMD Manager, through
the CAN interface or manual operation) are formatted as
monotype.
Table 6
IMD operational states description
No Name
Description
Conditions to proceed
1
Normal
operation
This state is the state when the IMD is
ready to operate and there are no active
errors. The condition for entering this state
are that the device is enabled (see section
state, it will remain in this state even if the
device is disabled
by “Enable dev.”
button/CAN command, or low on the RUN
input.
•
Active error
•
Safety-chain input tripped
•
Safety run execution
•
Manual operation*
•
Execution of special
commands
2
PwrOn
checking
Power on checking. This state is the first
state during start-up and a return step if
start-up error was cleared. In this step the
IMD makes a self-test, check for errors
and check whether a limit switch is
activated, in order to determine whether
the present position is known.
•
Error is active
•
Limit switch is active
•
Limit switch is not active
3
PwrOn
@Parked
Power on at parked. This state is entered
if a limit switch is activated at start-up.
•
Error is active
•
Safety chain input is OK,
and the
device is
enabled (RUN is high
and Enable dev. is
set)
•
Execution of special
command pre-heat
•
Execution of special
command SE-test
•
Manual operation*
5
PwrOn not
parked
Power on not parked. This state is entered
if no limit switch is activated at start-up,
and thus the position is unknown. In this
state the IMD will check the state of the
Auto safety run enabled bit in reg. 0x01.
•
Error is active
•
Auto safety run enabled =
0:
RUN = high and
Enable dev. is set
•
Auto safety run enabled =
1:
RUN = high
. “Enable
dev.” is set automatically by
the IMD
•
Execution of special
command pre-heat
•
Manual operation*