Fault Indications - Instron 4400 Series Operator's Manual

Fault Indications

Fault Indications

The fault indicators on the Main Panel light under cer-
tain conditions occurring during system operation. The
chart below lists the probable cause of these conditions
and the action to be taken.
FAULT INDICATOR
POWER
(Drive disabled)
TIMER
Drive disabled)
LOAD (flashes)
(Crosshead stops)
TRAVEL
(Crosshead stops)
MOTOR
(Drive disabled.
Indicator on steady.)
MOTOR
(Drive disabled.
Indicator flashing.
To reset system, cycle power off/on or perform the key sequence [S1] [0] [ENTER] which
*
clears memory, or the sequence [S1] [1] [ENTER] which saves current memory.
8-16
Table 8-4. Fault Indications
CAUSE
Momentary power loss.
CPU malfunctions or loss of
+/- 15 Vd.c. power.
Load overrange greater than
102% of cell capa- city with
AREA ≅ 1; or greater than
115% if AREA is set much
larger than 1.
Upper or lower crosshead
travel limit reached
1. Motor drive enabling se-
quence (5 sec. duration)
2. Motor drive cannot be
enabled.
3. Load frame cannot be
identified.
4. Load frame power supply
failure.
5. Crosshead second level
travel limit tripped.
6. Emergency stop switch
tripped.
7. Door interlock open.
1. Drive motor overheated.
2. Drive loop failure.
3. Drive stall.
M10-94400-1
CORRECTIVE ACTION
Cycle power off/on.
Cycle power off/on. Note
Self Test result.
Reduce load by UP, DOWN
or JOG keys (only proper
direction is en- abled).
Indicator flashes until a new
test is started.
Back off from limit by UP,
DOWN or JOG keys (only
proper direction is enabled).
Wait 5 sec. If speed shows
as "———-", check frame-to-
console cabling. Do a
System reset.*
Do a system reset.* If flash-
ing restarts, allow motor to
cool and reset*. Check for a
mechanical jam if fault
persists (requires service).