PPI HumiTherm-c Series User Manual

20
ELECTRICAL CONNECTIONS
WARNING
MISHANDLING / NEGLIGENCE CAN
RESULT IN PERSONAL DEATH OR
SERIOUS INJURY.
1. The user must rigidly observe the Local Electrical Regulations.
2. Do not make any connections to the unused terminals for making a tie-point for other wires (or for any other reasons) as
they may have some internal connections. Failing to observe this may result in permanent damage to the controller.
3. Run power supply cables separated from the low-level signal cables (like RTD, DC Linear (Voltage) signals, etc.). If the
cables are run through conduits, use separate conduits for power supply cable and low-level signal cables.
4. Use appropriate fuses and switches, wherever necessary, for driving the high voltage loads to protect the controller from
any possible damage due to high voltage surges of extended duration or short-circuits on loads.
5. Take care not to over-tighten the terminal screws while making connections.
6. Make sure that the controller supply is switched-off while making/removing any connections or removing the controller
from its enclosure.
CONNECTION DIAGRAM
The Electrical Connection Diagram is shown on the left side of the enclosure. The diagram shows the terminals viewed from
the REAR SIDE with the controller label upright. Refer the label provided on the Rear Side for terminal numbers. Note that the
OUTPUT-3 and the Serial Comm. connections are applicable only if the respective plug-in modules are fitted. The rear panel
electrical wiring connection diagram is shown in Figure12.1.
Figure 12.1
User Manual
HumiTherm-c (Dry-Wet)
Section 12
HumiTherm
1
2
3
4
5
6
7 8
9
10
11
12
13
14
15
16
17
18
+5V
OUTPUT 1 & 2
Pt100
IN PUT 1
OUTPUT 3
+
RH SENSOR
SERIAL
COMMS.
+
SSR
RELAY
N/O N/C C
PPI
L
N
AC
DC
SUPPLY
-
Ex
IN PUT 2
_
GND
OC1
OC2

PPI HumiTherm-c Series Specifications

General

Brand	PPI
Model	HumiTherm-c Series
Category	Controller
Language	English