Smartrise HYDRO:EVOLVED - Page 19

Soft Starter Startup Manual Sprecher + Schuh Hydraulic Installation
January 30, 2021 ©2021 Smartrise Engineering, Inc. All Rights Reserved Page 11
Flashes
Fault Type
Possible Fault Explanations
Possible Solutions
5
Phase
Imbalance
•
Unbalanced Phase
Currents (> 65%
differential)
•
Incoming line voltage
problem
•
Check motor current in each
phase to verify imbalance.
Motor current imbalance can
indicate potential motor
problems
6
Shorted SCR
•
Shorted SCR
•
Welded or latched
Bypass contactor
•
Verify connection type (LINE or
DELTA) and verify setting.
•
Perform continuity check across
power poles (L1-T1, L2 -T2, L3 -T3)
Measurements should exceed 10
kΩ. For best results, remove line
and load motor connections.
•
Cycle power to device and attempt
to restart.
•
If fault persists replace device.
7
Test
•
Intended operation
•
Reset Fault.
12
Checksum
•
Internal Software
computation
•
Replace Device.