Led Indicators - DigiTrace HTC-915 Installationshandbuch

CONNECTION DIAgRAM
TERMINAL ASSIgNMENTS
30 29 28 27 26 25 24 23 22 21 20 19 18 17
915 SERIES HEA T -TRACING CONTROLLER
ALAR M
ALARM MONI TO R CONFI G
OUTPU T
SHIF T TEST BACK ENTER
9 10 11 12 13 14 15 16
1 2 3 4 5 6 7 8
TS1 TS2
(optional)
Terminal assignments
for the controller
1. RTD 1 source
2. RTD 1 sense
3. RTD 1 common
4. Shield
5. RTD 2 source
6. RTD 2 sense
7. RTD 2 common
8. External Input +
(Inhibit/override)
9. External Input –
(Inhibit/override)
10. Communications (RS-485+)
11. Communications (RS-485 -)
12. Shield
13. Digital common (to Limiter 1)
14. +12Vdc out (to Limiter 2)
15. TX data (to Limiter 3)
Tx 16. RX data (from Limiter 4)
Rx
17. Mains Input (L1)
18. Mains Input (L2/neutral)
19. Control relay output
20. Control relay output
21. Alarm relay output
22. Alarm relay output
23. PE
24. SSR control output +
25. SSR control output –
26. Load Current CT input
27. Load Current CT input
28. Shield
29. GF CT input
30. GF CT input
Alarm availability
An alarm can be generated if the actual measured value is higher or lower than
the value specified in the controller's set-up. Alarms are available for:
temperature, voltage, current, power, earth leakage current, etc... refer to HTC-
915 operating manual for details. A copy of this manual can be downloaded from
www.thermal.pentair.com (Doc-2106)
OPERATOR CONSOLE & OPERATION
ALPhA-NUMERIC DISPLAY
The Console incorporates LED display. Messages and prompts that are greater
than 6 characters long are scrolled.
KEYPAD
The local keypad consists of 6 keys that allow you to select the console mode
function. For certain keys, the SHIFT key selects an alternate function, as shown
by the text above that key.
Quick Notes on Operation
Terminal assignments
of the limiter
Basic rules for efficient Console use:
• use the ShIFT key followed by the appropriate function key -- ALARM,
1. Digital common
MONITOR, or CONFIg -- to select the operating mode
(from HTC 13)
• use Í and È to move around in the menu
2. +12Vdc in (from HTC 14)
• use Ë to enter a new menu, enter a new value, or select a menu item
3. RX data (from HTC 15 )
• use Á to exit the current menu or cancel an edit
4. TX data (to HTC 16)
5. RTD 1 source
Key
6. RTD 1 sense
7. RTD 1 common
ShIFT
8. Shield
9. Control relay output
10. Control relay output
11. Alarm relay output
12. Alarm relay output
13. Load Current CT input
TEST
14. Load Current CT input
Á BACK
[shift MONITOR]
Ë ENTER
[shift CONFIg]
È
Í

LED INDICATORS

The console includes eight LED indicators:
Four LEDs indicate the Console operating mode. (
MONITOR
There are two status LED's which indicate the alarm and control output status of
the controller:
The output LED, the alarm LED will flash (approximately once per second) when
the controller has detected an alarm condition. The two additional LEDs are used
to indicate external communications activity.
Function
• Press to activate a ShIFT function -- the next key
pressed uses the alternate (shifted) function.
• The ShIFT LED illuminates, indicating the next key
uses the alternate (shifted) function pressing ShIFT
again cancels the alternate (shifted) function.
• Turns on tracing for 30 seconds when prefixed by the
ShIFT key, this key switches the console to the Alarm
mode.
• Exits the current menu (or cancels the new setting
when editing a parameter).
• Moves the cursor to the left when editing an alpha-
numeric parameter.
• When prefixed by the ShIFT key, this key switches the
console to the Monitor mode.
• Selects the item in the display (or accepts the setting
when editing a parameter).
• Moves the cursor to the right when editing an alpha-
numeric parameter.
• When prefixed by the ShIFT key, this key switches the
console to the Configure mode.
• Moves to the previous item in a menu
increments the value when editing.
• Moves to the next item in a menu
decrements the value when editing.
ShIFT
function,
CONFIg
, or ure modes).
ALARM
,