27
User Manual
Zenex Pro
Figure 11.1
ELECTRICAL CONNECTIONS
Section 11
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 top side of the enclosure. The diagram shows the terminals viewed from
the REAR SIDE with the controller label upright. The connecters provided for wiring are pluggable male-female type. The
female parts are soldered on the controller PCBs while the male parts are with screws and removable. The rear panel
electrical wiring connection diagram is shown in Figure 11.1.
Relay / SSR Control Output Version
DC mA/V Control Output Version
21
1
2
3
4
5
20
19
18
L
N
NO
C
85~264
VAC
Relay
OUTPUT1
OUTPUT2
OUTPUT3
-
+
SSR
TC
-
+
B+ B-
RS485
OUTPUT1
PV INPUT
+
-
SSR
NO
C
NC
RL
Y
10
11
12
13
14
15
16
17
Pt100
6
7
8
9
+
-
SSR
NO
C
NC
RL
Y
Digital
Input
(*)
(*) Digital Input not available in Output 3 Relay Configuration
(**) 3 Terminals for Output 2 & Output 3 in Relay Configuration
(**)
(**)
21
1
2
3
4
5
20
19
18
L
N
85~264
VAC
OUTPUT2
OUTPUT3
+
-
V/mA
TC
-
+
B+ B-
RS485
OUTPUT1
PV INPUT
+
-
SSR
NO
C
NC
RL
Y
10
11
12
13
14
15
16
17
Pt100
6
7
8
9
+
-
SSR
NO
C
NC
RL
Y
Digital
Input
(*)
(*) Digital Input not available in Output 3 Relay Configuration
(**) 3 Terminals for Output 2 & Output 3 in Relay Configuration
(**)
(**)
