PAGE 10
SENSO
RS AN
D INS
TRUME
N
TATIO
N F
OR MAC
HINE
CON
DITION M
ONIT
ORIN
G
Pin Location Diagram- Models with External Accelerometer and Triac Relays
When the external 100mV/g ICP
®
sensor option is specified, an additional terminal block location is added to the
685B-Series. The external accelerometer is connected to +Sensor and
–Sensor positions as indicated in the
above figure and on the product label locate inside the top cover. The cable shield to the accelerometer should be
grounded as required by local codes as well as to limit RFI/EMI interference.
Pin
Category
Description
1
AC Power
+ Power
2
- Power/Common
3
Earth Ground (Also connect to enclosure safety lug)
4
Alarm Output
Main Terminal 1
5
Main Terminal 2
6
Alert Output
Main Terminal 1
7
Main Terminal 2
8
N/A
N/A
9
N/A
10
Sensor Input &
Raw Vibration Output
+ Sensor
11
- Sensor/Common
12
+Signal
13
Control Configurations
Remote Reset Connection (Do not apply power)
14
Common Connection
15
Calibration Connection
16
Current Output
- 4-20 mA
17
+ 4-20 mA
