13 14
15 16
Quencharc Note:
Switching pilot duty inductive loads (relay coils, solenoids, etc.) with the mechanical relay, or open
collector output options requires use of an R.C. suppressor (Quencharc
)
.
Open Collector
Load
Power
Supply
dc -
common
X1
W1
PM _ L _ (C) _ - A A A A B _ _
L1
J1
K1
normally open
common
normally closed
Mechanical Relay
Form C
PM _ L _ (E) _ - A A A A B _ _
Outputs
Please note all outputs are connected exclusively to slot A. Output availability is based on the part number of
your Limit Control.
Note:
In the drawings below for each output notice that the Slot A connector labeling is identified with the corre-
sponding part number below.
W1
dc +
dc -
Y1
common
Switched DC
PM _ L _ (C) _ - A A A A B _ _
L2
K2
Mechanical Relay
Form A
PM _ L _ _ (J) - A A A A B _ _
Outputs (cont.)
Switched DC
• 22 to 32V
Î
(dc) @ 30mA maximum supply current
• short circuit limited to <50 mA
• 22 to 32V
Î
(dc) open circuit voltage
• Use dc- and dc+ to drive external solid-state relay.
• DIN-a-mite compatibility is for output 1 only.
- single-pole: up to 4 in parallel or 4 in series
- 2-pole: up to 2 in parallel or 2 in series
- 3-pole: up to 2 in series
Open Collector
• 100 mA maximum output current sink
• 30V
Î
(dc) maximum supply voltage
• Use an external power supply to control a dc load, with the load positive to the positive of the power
supply, the load negative to the open collector and common to the power supply negative.
See Quencharc note.
Mechanical Relay Form C
• 5 A at 240V
Å
(ac) or 30V
Î
(dc) maximum resistive load, output 1
• 20 mA at 24V minimum load
• 125 VA pilot duty at 120/240V
Å
(ac), 25 VA at 24V
Å
(ac)
• 100,000 cycles at rated load
• Output does not supply power.
• for use with ac or dc
See Quencharc note.
Mechanical Relay Form A
• 5 A at 240V
Å
(ac) or 30V
Î
(dc) maximum resistive load, output 2
• 20 mV at 24V minimum load
• 125 VA pilot duty @ 120/240V
Å
(ac), 25 VA at 24V
Å
(ac)
• 100,000 cycles at rated load
• Output does not supply power.
• for use with ac or dc
See Quencharc note (previous page).
Zone Display:
When
[2onE]
(found in the
Factory Page) is set to on, indicates
the controller zone.
[1]
to
[9]
= zones 1 to 9
[A]
= zone 10
[E]
= zone 14
[b]
= zone 11
[F]
= zone 15
[C]
= zone 12
[h]
= zone 16
[d]
= zone 13
Lower Display:
Indicates the current state of the
limit
[Fail]
or
[Safe]
.
EZ Key:
Performs reset function.
RESET Key:
Press to reset limit after a trip con-
dition has been cleared.
®
L
T
I
M
I
®
Temperature Units Indicator
Lights:
Indicates whether the tempera-
ture is displayed in Fahrenheit
or Celsius.
Output Activity:
Number lights indicate activity
of outputs 1 and 2.
Communications Activity:
Flashes when another device
is communicating with this
controller.
Upper Display:
On power up, displays
the process value, otherwise
displays the value of the
parameter in the lower
display.
Up and Down Keys:
¿
¯
When in a menu scrolls through
available options for any given
prompt. In other menus can
change set points and modify
the upper display to a higher or
lower value.
Keys & Displays 16
th
DIN LIMIT Controller
Advance Key:
‰
Advances through
parameter prompts.
Left Display:
On power up, displays the pro-
cess value, otherwise displays
the value of the parameter in
the right display.
With a few exceptions, all of the key functions described above for the 16
th
DIN LIMIT apply to the 32
nd
DIN LIMIT controller as well.
Right Display:
Indicates the current state
of the limit
[Fail]
or
[Safe]
.
An active message will cause the display to toggle
between the normal settings and the active mes-
sage in the upper or left display and
[Attn]
in
the lower or right display.
Your response will depend on the message
and the controller settings. If the message is
generated by a latched alarm or limit condition,
the message can be silenced
[Sil]
or cleared
[CLr]
by simply pushing the reset key
when the condition no longer exists.
[AL;L1]
Alarm 1 Low (sensor input below low
alarm set point)
[AL;h1]
Alarm 1 High (sensor input above high
alarm set point)
Alarm Error 1
[AL;E1]
Alarm 1 Error (alarm state cannot be
determined due to lack of sensor input)
[Er;i1]
Error Input 1 (sensor is not providing a
valid signal to the control)
[Li;L1]
Limit Low 1 (sensor input below low
limit set point)
[Li;h1]
Limit High 1(sensor input above high
limit set point)
[Li;E1]
Limit Error 1 (limit state cannot be
determined due to lack of sensor input, limit
will trip
32
nd
DIN LIMIT Controller
2
1
®
L
I
M
I
T
Responding to a Displayed Message
Upon power-up, the upper display will briefly indicate the firmware revision and the
lower display will show PMb. The "b" in this case, reflects the B in the model number.
Note:
Output 2 is always the limit.
PM3
PM6
Keys & Displays for 1/8
th
or 1/4 DIN PID Controllers
®
L
I
M
I
T
RESET
PM8
®
RESET
L
I
M
I
T
PM9
®
L
I
M
I
T
PM4
Note:
As shown in the graphics on the following page the PM4, 8 and 9 controls will include two "EZ" buttons (EZ1
and EZ2). The button identified as EZ1 is equivalent to the EZ button described above where the button identi-
fied as EZ2 has no functionality. Assuming the issue that caused the limit to trip has been rectified pushing
the EZ1 will reset the limit as described for the Reset button above. All other buttons found on these controls,
maintain the same functionality as described above for the 16
th
DIN.
