Page 219 - Wago_AutomationTechnology_Volume3_2015_US.pdf

750-1425

8-Channel PTC Module 4

Connects to PTC thermistors according to DIN 44081/44082 217

750-1425
750-1425
13 14
Status 1 Error
2
1T ... 8T 3 1T ... 8T
4
5
6
7 Data contacts
8
1 9
1T1 1T2 T1 Logic
®
CAGE CLAMP S CAGE CLAMP S
®
connection connection 2T1 2 10 2T2 T2
1T1 … 8T1 1T2 … 8T2
3 11
3T1 3T2 270 pF
+ 24 V +24 V Error
4 12 Function
4T1 4T2
10 nF
↑↓ 5T1 5 13 5T2
ϑ 0 V 0 V
↑↓ 6T1 6 14 6T2 10 nF
ϑ 7 15
7T1 7T2 10 nF
8 16
8T1 8T2
Power jumper contacts
Just 12 mm wide, the PTC module features eight channels to connect PTC
thermistors according to DIN 44081 and DIN 44082 for thermal monitoring
(overload protection) of motors, machinery, bearings, etc.
Up to 6 PTC thermistors can be connected in series per channel. If the nominal
response temperature (ϑnat) is exceeded, a bit is set in the module's input
process image. In addition, wire breaks and short circuits are monitored for
each channel. If an error occurs, a bit is also set in the input process image.
One green and one red status LED per channel indicate overtemperature or
wiring errors.
Field and system levels are electrically isolated.

Description Item No. Pack. Technical Data
Unit
8DI PTC 750-1425 1 Number of inputs 8
Power supply via system voltage DC/DC
Current consumption typ. (internal) 52 mA
260 mW
Power consumption P max.
Sensor connection 2-wire; Sensor voltage:
≤ 2.5 V / ≤ 7.5 V (based on resistance
value);
Sensor current: ≤ 1 mA; 4.2
Accessories Item No. Pack. Number of PTCs per channel:
Unit max. 6 PTCs in series;
Miniature WSB Quick marking system Operating value (status bit “1” to “0”):
plain 248-501 5 R ≥ 3 kΩ;
with marking see Section 11 Return value (status bit “0” to “1”):
≤ 1.5 kΩ;
Operating tool, with partially insulated 210-719 50 Hysteresis: R = 1.5 kΩ;
shaft, type 1, blade (2.5 x 0.4) mm Wire break value: R ≥ 8 kΩ;
Approvals Short circuit value: R ≤ 20 Ω
Input filter 100 ms
Conformity marking 1 Isolation 500 V system/field
Marine applications GL Bit width 16-bit (status)
®
Wire connection CAGE CLAMP S
Cross sections solid:
0.08 mm² ... 1.5 mm² / AWG 28 ... 16
fine-stranded:
0.25 mm² ... 1.5 mm² / AWG 22 ... 16
Strip lengths 8 ... 9 mm / 0.33 in
Width 12 mm
Weight 60.2 g
EMC immunity of interference acc. to EN 61000-6-2, marine applications
EMC emission of interference acc. to EN 61000-6-4, marine applications